Knowledge

Sampling bias

Source đź“ť

118:. For example, a survey of high school students to measure teenage use of illegal drugs will be a biased sample because it does not include home-schooled students or dropouts. A sample is also biased if certain members are underrepresented or overrepresented relative to others in the population. For example, a "man on the street" interview which selects people who walk by a certain location is going to have an overrepresentation of healthy individuals who are more likely to be out of the home than individuals with a chronic illness. This may be an extreme form of biased sampling, because certain members of the population are totally excluded from the sample (that is, they have zero probability of being selected). 508:, as they stem from the same chemical process(es). These correlations depend on space (i.e., location) and time (i.e., period). Therefore, a pollutant distribution is not necessarily representative for every location and every period. If a low-cost measurement instrument is calibrated with field data in a multivariate manner, more precisely by collocation next to a reference instrument, the relationships between the different compounds are incorporated into the calibration model. By relocation of the measurement instrument, erroneous results can be produced. 557: 376:. In statistical usage, bias merely represents a mathematical property, no matter if it is deliberate or unconscious or due to imperfections in the instruments used for observation. While some individuals might deliberately use a biased sample to produce misleading results, more often, a biased sample is just a reflection of the difficulty in obtaining a truly representative sample, or ignorance of the bias in their process of measurement or analysis. An example of how ignorance of a bias can exist is in the widespread use of a ratio (a.k.a. 380:) as a measure of difference in biology. Because it is easier to achieve a large ratio with two small numbers with a given difference, and relatively more difficult to achieve a large ratio with two large numbers with a larger difference, large significant differences may be missed when comparing relatively large numeric measurements. Some have called this a 'demarcation bias' because the use of a ratio (division) instead of a difference (subtraction) removes the results of the analysis from science into pseudoscience (See 139:, which are biased samples because the respondents are self-selected. Those individuals who are highly motivated to respond, typically individuals who have strong opinions, are overrepresented, and individuals that are indifferent or apathetic are less likely to respond. This often leads to a polarization of responses with extreme perspectives being given a disproportionate weight in the summary. As a result, these types of polls are regarded as unscientific. 3069: 391:, for example, deliberately oversamples from minority populations in many of its nationwide surveys in order to gain sufficient precision for estimates within these groups. These surveys require the use of sample weights (see later on) to produce proper estimates across all ethnic groups. Provided that certain conditions are met (chiefly that the weights are calculated and used correctly) these samples permit accurate estimation of population parameters. 249: 400: 433:, by a large margin. The result was the exact opposite. The Literary Digest survey represented a sample collected from readers of the magazine, supplemented by records of registered automobile owners and telephone users. This sample included an over-representation of wealthy individuals, who, as a group, were more likely to vote for the Republican candidate. In contrast, a poll of only 50 thousand citizens selected by 278:. In a perfect world we should be able to discover all such families with a gene including those who are simply carriers. In this situation the analysis would be free from ascertainment bias and the pedigrees would be under "nontruncate selection" In practice, most studies identify, and include, families in a study based upon them having affected individuals. 535:
If entire segments of the population are excluded from a sample, then there are no adjustments that can produce estimates that are representative of the entire population. But if some groups are underrepresented and the degree of underrepresentation can be quantified, then sample weights can correct
364:
in the population. Sampling bias occurs in practice as it is practically impossible to ensure perfect randomness in sampling. If the degree of misrepresentation is small, then the sample can be treated as a reasonable approximation to a random sample. Also, if the sample does not differ markedly in
134:
require for many real-time and some longitudinal forms of study). Participants' decision to participate may be correlated with traits that affect the study, making the participants a non-representative sample. For example, people who have strong opinions or substantial knowledge may be more willing
268:). In this case their children will each have a 25% chance of showing the characteristic. The problem arises because we can't tell which families have both parents as carriers (heterozygous) unless they have a child who exhibits the characteristic. The description follows the textbook by Sutton. 288:
have an equal chance of being included in a study this is called truncate selection, signifying the inadvertent exclusion (truncation) of families who are carriers for a gene. Because selection is performed on the individual level, families with two or more affected children would have a higher
470:. Survey research was then in its infancy, and few academics realized that a sample of telephone users was not representative of the general population. Telephones were not yet widespread, and those who had them tended to be prosperous and have stable addresses. (In many cities, the 164:, when the study population is likely healthier than the general population. For example, someone in poor health is unlikely to have a job as manual laborer, so if a study is conducted on manual laborers, the health of the general population will likely be overestimated. 240:, parents try to prevent their children from being stigmatized with those diagnoses, introducing further bias. Studies carefully selected from whole populations are showing that many conditions are much more common and usually much milder than formerly believed. 61:
of a population (or non-human factors) in which all individuals, or instances, were not equally likely to have been selected. If this is not accounted for, results can be erroneously attributed to the phenomenon under study rather than to the method of
544:
of 2.5 for each male and 0.625 for each female. This would adjust any estimates to achieve the same expected value as a sample that included exactly 50 men and 50 women, unless men and women differed in their likelihood of taking part in the survey.
200:, in which only "surviving" subjects are selected, ignoring those that fell out of view. For example, using the record of current companies as an indicator of business climate or economy ignores the businesses that failed and no longer exist. 151:
into the study area (this may occur when newcomers are not available in a register used to identify the source population). Excluding subjects who move out of the study area during follow-up is rather equivalent of dropout or nonresponse, a
348:, etc. are most likely to remain intact to the modern era in caves. Prehistoric people are associated with caves because that is where the data still exists, not necessarily because most of them lived in caves for most of their lives. 101:
for differences or similarities found in the sample at hand. In this sense, errors occurring in the process of gathering the sample or cohort cause sampling bias, while errors in any process thereafter cause selection bias.
227:
The study of medical conditions begins with anecdotal reports. By their nature, such reports only include those referred for diagnosis and treatment. A child who can't function in school is more likely to be diagnosed with
172:, when the study population is selected from a hospital and so is less healthy than the general population. This can result in a spurious negative correlation between diseases: a hospital patient without diabetes is 539:
For example, a hypothetical population might include 10 million men and 10 million women. Suppose that a biased sample of 100 patients included 20 men and 80 women. A researcher could correct for this imbalance by
303:
The probabilities of each of the families being selected is given in the figure, with the sample frequency of affected children also given. In this simple case, the researcher will look for a frequency of
748: 256:
Geneticists are limited in how they can obtain data from human populations. As an example, consider a human characteristic. We are interested in deciding if the characteristic is inherited as a
340:
made nearly 40,000 years ago. If there had been contemporary paintings on trees, animal skins or hillsides, they would have been washed away long ago. Similarly, evidence of fire pits,
536:
the bias. However, the success of the correction is limited to the selection model chosen. If certain variables are missing the methods used to correct the bias could be inaccurate.
763: 218:, the uncritical assumption that all members or cases of a certain class or type are like those that receive the most attention or coverage in the media. 232:
than a child who struggles but passes. A child examined for one condition is more likely to be tested for and diagnosed with other conditions, skewing
192:
that actually is a result of the exposure. The control group becomes more similar to the cases in regard to exposure than does the general population.
1958: 415:
A classic example of a biased sample and the misleading results it produced occurred in 1936. In the early days of opinion polling, the American
466:, was photographed holding a newspaper bearing this headline. The reason the Tribune was mistaken is that their editor trusted the results of a 3105: 2186: 467: 89:, but some classify it as a separate type of bias. A distinction, albeit not universally accepted, of sampling bias is that it undermines the 2191: 130:), which is possible whenever the group of people being studied has any form of control over whether to participate (as current standards of 1933: 360:
computed of the sample is systematically erroneous. Sampling bias can lead to a systematic over- or under-estimation of the corresponding
788: 635: 445: 422: 264:, if the parents in a family do not have the characteristic, but carry the allele for it, they are carriers (e.g. a non-expressive 1963: 759: 1070: 1043: 1016: 937: 708: 388: 818: 3130: 2569: 481:). In addition, the Gallup poll that the Tribune based its headline on was over two weeks old at the time of the printing. 459: 2226: 2068: 3098: 73:. Ascertainment bias has basically the same definition, but is still sometimes classified as a separate type of bias. 3149: 2380: 1307:
Cuddeback G, Wilson E, Orme JG, Combs-Orme T (2004). "Detecting and Statistically Correcting Sample Selection Bias".
1360: 271:
The figure shows the pedigrees of all the possible families with two children when the parents are carriers (Aa).
2035: 1953: 1763: 208:, an effect in observational astronomy which leads to the preferential detection of intrinsically bright objects. 3181: 1184:"The Relocation Problem of Field Calibrated Low-Cost Sensor Systems in Air Quality Monitoring: A Sampling Bias" 147:
bias results from exclusion of particular groups from the sample, e.g. exclusion of subjects who have recently
1882: 387:
Some samples use a biased statistical design which nevertheless allows the estimation of parameters. The U.S.
3186: 3091: 2988: 2196: 1768: 1422: 17: 372:
has a strong negative connotation. Indeed, biases sometimes come from deliberate intent to mislead or other
3024: 3000: 2589: 1417: 2601: 2345: 1540: 3191: 3136: 2611: 1876: 1402: 615: 421:
magazine collected over two million postal surveys and predicted that the Republican candidate in the
3019: 2576: 2472: 2006: 1730: 1530: 1508: 725: 570: 136: 982: 920: 3014: 2854: 2322: 2158: 2114: 2030: 1943: 1825: 1590: 1570: 1466: 1241:
Ward D (20 April 2020). Sampling Bias: Explaining Wide Variations in COVID-19 Case Fatality Rates.
575: 3034: 2849: 2365: 2061: 237: 1121: 700: 694: 2956: 2946: 2896: 2870: 2646: 2520: 2487: 2388: 2370: 2270: 2119: 2101: 2016: 1700: 1680: 1461: 1439: 977: 915: 50: 665: 3143: 2994: 2982: 2962: 2951: 2866: 2679: 2655: 2477: 2433: 2285: 2211: 2124: 1795: 1710: 1685: 1630: 261: 63: 727:
Selection and linkage desequilibrium tests under complex demographies and ascertainment bias
3114: 3009: 2913: 2877: 2792: 2748: 2584: 2515: 2305: 2134: 2109: 1748: 1600: 1476: 1353: 1195: 796: 643: 595: 454: 168: 54: 332:
An example of selection bias is called the "caveman effect". Much of our understanding of
8: 2887: 2786: 2733: 2709: 2632: 2535: 2467: 2393: 2206: 2201: 2178: 2153: 1903: 1820: 1720: 1655: 1595: 1585: 1580: 1444: 580: 474: 381: 257: 122: 93:
of a test (the ability of its results to be generalized to the entire population), while
1199: 1135: 3072: 3005: 2819: 2704: 2689: 2636: 2596: 2545: 2482: 2441: 2418: 2398: 2301: 2145: 2129: 2054: 1800: 1785: 1545: 1535: 1518: 1324: 1292: 1265: 1218: 1183: 1103: 943: 905: 605: 585: 562: 520: 430: 1086:
Berk RA (June 1983). "An Introduction to Sample Selection Bias in Sociological Data".
866: 849: 365:
the quantity being measured, then a biased sample can still be a reasonable estimate.
3125: 2891: 2728: 2718: 2694: 2671: 2627: 2553: 2505: 2463: 2423: 2265: 2260: 2082: 1913: 1850: 1835: 1758: 1740: 1675: 1471: 1387: 1223: 1066: 1039: 1012: 933: 871: 850:"The effects of sample selection bias on racial differences in child abuse reporting" 704: 556: 512: 493: 404: 345: 196: 160: 127: 98: 90: 46: 1328: 1250: 437:'s organization successfully predicted the result, leading to the popularity of the 3155: 3041: 2882: 2781: 2723: 2661: 2456: 2335: 2330: 2315: 2280: 2240: 2168: 2163: 1980: 1840: 1780: 1705: 1690: 1550: 1503: 1412: 1407: 1392: 1316: 1287: 1277: 1246: 1213: 1203: 1095: 987: 925: 890: 861: 524: 516: 497: 411:
test. Due to the nature of the test, the sample consisted mostly of web developers.
373: 31: 963:"Domain adaptation and sample bias correction theory and algorithm for regression" 947: 2798: 2762: 2738: 2558: 2530: 2510: 2358: 2326: 2310: 2275: 1948: 1938: 1715: 1695: 1610: 1513: 1488: 1483: 1456: 1434: 1346: 1060: 1033: 1006: 826: 489: 478: 463: 449: 417: 148: 131: 929: 180:, since they must have had some reason to enter the hospital in the first place. 2699: 2684: 2606: 2525: 2451: 2091: 1990: 1985: 1975: 1898: 1815: 1775: 1725: 1670: 1660: 1645: 1640: 1605: 1560: 1525: 1429: 1378: 1282: 962: 600: 590: 204: 153: 94: 82: 49:
in which a sample is collected in such a way that some members of the intended
1266:"Using excess deaths and testing statistics to determine COVID-19 mortalities" 991: 3175: 2824: 2714: 2409: 2353: 2221: 2216: 1928: 1908: 1871: 1845: 1830: 1790: 1753: 1665: 1625: 1620: 1615: 1493: 1397: 610: 434: 337: 236:
statistics. As certain diagnoses become associated with behavior problems or
177: 2836: 2255: 1888: 1650: 1635: 1227: 505: 299:
with an affected child has an equal chance of being selected for the study.
265: 184: 135:
to spend time answering a survey than those who do not. Another example is
2046: 1320: 875: 324:
for the characteristic, depending on the type of truncate selection used.
3029: 2806: 2743: 1805: 1575: 1565: 1555: 1451: 485: 471: 438: 399: 377: 233: 189: 1157: 3083: 2939: 2933: 2860: 2772: 1923: 1918: 1893: 1107: 426: 333: 105:
However, selection bias and sampling bias are often used synonymously.
38: 1208: 30:"Spotlight fallacy" redirects here. For the psychological effect, see 3046: 2830: 2814: 2497: 2011: 1498: 541: 361: 357: 248: 2976: 1099: 2924: 1970: 1855: 696:
DNA fingerprinting in plants: principles, methods, and applications
229: 910: 2078: 458:, which turned out to be mistaken. In the morning the grinning 403:
Example of biased sample: as of June 2008 55% of web browsers (
341: 530: 1306: 501: 408: 156:
in that it rather affects the internal validity of the study.
888: 1369: 369: 356:
Sampling bias is problematic because it is possible that a
1338: 1263: 243: 1035:
Maxcy-Rosenau-Last Public Health and Preventive Medicine
1038:(15th ed.). McGraw Hill Professional. p. 21. 519:
have been shown to account for wide variations in both
733:(Ph.D. thesis). Universitat Pompeu Fabra. p. 34. 552: 81:
Sampling bias is usually classified as a subtype of
69:
Medical sources sometimes refer to sampling bias as
889:Cortes C, Mohri M, Riley M, Rostamizadeh A (2008). 1011:. Lippincott Williams & Wilkins. p. 262. 76: 723: 3173: 351: 954: 2187:Affirmative conclusion from a negative premise 1124:. National Center for Health Statistics. 2007. 882: 847: 699:. London: Taylor & Francis Group. p.  289:probability of becoming included in the study. 3099: 2192:Negative conclusion from affirmative premises 2062: 1354: 1264:Böttcher L, D'Orsogna MR, Chou T (May 2021). 1181: 176:likely to have another given disease such as 841: 2076: 1065:(4th ed.). Harcourt Brace Jovanovich. 1025: 960: 848:Ards S, Chung C, Myers SL (February 1998). 531:Statistical corrections for a biased sample 3106: 3092: 2069: 2055: 2017:Heuristics in judgment and decision-making 1361: 1347: 1052: 2770: 1291: 1281: 1217: 1207: 998: 981: 919: 909: 891:"Sample Selection Bias Correction Theory" 865: 222: 3113: 2923: 724:RamĂ­rez i Soriano A (29 November 2008). 444:Another classic example occurred in the 398: 252:Simple pedigree example of sampling bias 247: 1031: 760:Society for Academic Emergency Medicine 746: 692: 681:Mosby's Medical Dictionary, 8th edition 515:, where variations in sampling bias in 14: 3174: 1058: 742: 740: 511:A twenty-first century example is the 429:, would beat the incumbent president, 394: 244:Truncate selection in pedigree studies 3087: 2050: 1342: 1004: 900:. Lecture Notes in Computer Science. 749:"Error and Bias in Clinical Research" 389:National Center for Health Statistics 327: 3131:Correlation does not imply causation 1240: 1182:Tancev G, Pascale C (October 2020). 1155: 1085: 27:Bias in the sampling of a population 737: 24: 1309:Journal of Social Service Research 336:peoples comes from caves, such as 25: 3203: 3150:Lies, damned lies, and statistics 1062:An Introduction to Human Genetics 3068: 3067: 1270:European Journal of Epidemiology 555: 477:contained the same names as the 85:, sometimes specifically termed 1300: 1257: 1234: 1175: 1149: 1128: 1114: 1079: 77:Distinction from selection bias 2565:Correlation implies causation 811: 793:Medilexicon Medical Dictionary 781: 717: 686: 658: 628: 13: 1: 1251:10.13140/RG.2.2.24953.62564/1 1245:(Report). Bern, Switzerland. 867:10.1016/S0145-2134(97)00131-2 621: 352:Problems due to sampling bias 295:is a special case where each 260:trait. Following the laws of 132:human-subject research ethics 57:than others. It results in a 1162:The Engines of Our Ingenuity 1088:American Sociological Review 970:Theoretical Computer Science 7: 1883:DĂ©formation professionnelle 930:10.1007/978-3-540-87987-9_8 898:Algorithmic Learning Theory 548: 527:of cases across countries. 293:Complete truncate selection 188:, matching for an apparent 10: 3208: 3137:How to Lie with Statistics 2989:I'm entitled to my opinion 1877:Basking in reflected glory 1368: 1283:10.1007/s10654-021-00748-2 961:Cortes C, Mohri M (2014). 823:Dictionary of Cancer Terms 616:Truncated regression model 488:data, pollutants (such as 446:1948 presidential election 423:U.S. presidential election 407:) in use did not pass the 29: 3121: 3063: 2972: 2911: 2845: 2761: 2670: 2645: 2620: 2544: 2496: 2432: 2407: 2379: 2344: 2294: 2248: 2239: 2177: 2143: 2099: 2090: 2025: 2007:Cognitive bias mitigation 1999: 1864: 1739: 1376: 1138:. Refsnes Data. June 2008 992:10.1016/j.tcs.2013.09.027 854:Child Abuse & Neglect 571:Censored regression model 448:. On election night, the 137:online and phone-in polls 3015:Motte-and-bailey fallacy 2115:Affirming the consequent 1591:Illusion of transparency 576:Cherry picking (fallacy) 108: 3035:Two wrongs make a right 2366:Denying the correlative 747:Panacek EA (May 2009). 504:) frequently show high 238:intellectual disability 53:have a lower or higher 3020:Psychologist's fallacy 2957:Argument to moderation 2947:Argument from anecdote 2897:Chronological snobbery 2521:Quoting out of context 2488:Overwhelming exception 2371:Suppressed correlative 2271:Quoting out of context 2146:quantificational logic 2120:Denying the antecedent 412: 253: 223:Symptom-based sampling 3182:Sampling (statistics) 3144:Impression management 2983:The Four Great Errors 2963:Argumentum ad populum 2952:Argument from silence 2656:Argumentum ad baculum 2434:Faulty generalization 2125:Argument from fallacy 1959:Arab–Israeli conflict 1686:Social influence bias 1631:Out-group homogeneity 1321:10.1300/J079v30n03_02 452:printed the headline 402: 276:Nontruncate selection 262:Mendelian inheritance 251: 87:sample selection bias 3187:Misuse of statistics 3115:Misuse of statistics 3001:Invincible ignorance 2807:Reductio ad Stalinum 2793:Reductio ad Hitlerum 2749:Wisdom of repugnance 2516:Moving the goalposts 2381:Illicit transference 2306:Begging the question 2227:Undistributed middle 2135:Mathematical fallacy 2110:Affirming a disjunct 1601:Mere-exposure effect 1531:Extrinsic incentives 1477:Selective perception 1136:"Browser Statistics" 789:"Ascertainment Bias" 596:Sampling probability 455:DEWEY DEFEATS TRUMAN 55:sampling probability 2734:Parade of horribles 2710:In-group favoritism 2536:Syntactic ambiguity 2179:Syllogistic fallacy 2102:propositional logic 1826:Social desirability 1721:von Restorff effect 1596:Mean world syndrome 1571:Hostile attribution 1200:2020Senso..20.6198T 758:. New Orleans, LA: 756:SAEM Annual Meeting 581:File drawer problem 521:case fatality rates 475:telephone directory 395:Historical examples 382:Demarcation Problem 2820:Poisoning the well 2637:Proof by assertion 2612:Texas sharpshooter 2546:Questionable cause 2483:Slothful induction 2442:Anecdotal evidence 2302:Circular reasoning 2197:Exclusive premises 2159:Illicit conversion 1741:Statistical biases 1519:Curse of knowledge 1059:Sutton HE (1988). 1032:Wallace R (2007). 1008:Behavioral Science 693:Weising K (2005). 640:Medical Dictionary 606:Common source bias 586:Friendship paradox 563:Mathematics portal 542:attaching a weight 431:Franklin Roosevelt 413: 328:The caveman effect 282:Truncate selection 254: 116:specific real area 71:ascertainment bias 3192:Experimental bias 3169: 3168: 3126:Circular analysis 3081: 3080: 3059: 3058: 3055: 3054: 2995:Ignoratio elenchi 2907: 2906: 2757: 2756: 2719:Not invented here 2424:Converse accident 2346:Correlative-based 2323:Compound question 2266:False attribution 2261:False equivalence 2235: 2234: 2044: 2043: 1681:Social comparison 1462:Choice-supportive 1209:10.3390/s20216198 1122:"Minority Health" 1072:978-0-15-540099-3 1045:978-0-07-159318-2 1018:978-0-7817-8257-9 939:978-3-540-87986-2 769:on 17 August 2016 710:978-0-8493-1488-9 670:TheFreeDictionary 513:COVID-19 pandemic 494:nitrogen monoxide 405:Internet Explorer 284:. When afflicted 216:Spotlight fallacy 197:Survivorship bias 169:Berkson's fallacy 161:Healthy user bias 128:Non-response bias 114:Selection from a 99:internal validity 97:mainly addresses 91:external validity 16:(Redirected from 3199: 3156:Misleading graph 3108: 3101: 3094: 3085: 3084: 3071: 3070: 3042:Special pleading 2921: 2920: 2782:Appeal to motive 2768: 2767: 2744:Stirring symbols 2724:Island mentality 2662:Wishful thinking 2643: 2642: 2359:Perfect solution 2336:No true Scotsman 2331:Complex question 2316:Leading question 2295:Question-begging 2281:No true Scotsman 2246: 2245: 2169:Quantifier shift 2164:Proof by example 2097: 2096: 2071: 2064: 2057: 2048: 2047: 1841:Systematic error 1796:Omitted-variable 1711:Trait ascription 1551:Frog pond effect 1379:Cognitive biases 1363: 1356: 1349: 1340: 1339: 1333: 1332: 1304: 1298: 1297: 1295: 1285: 1261: 1255: 1254: 1238: 1232: 1231: 1221: 1211: 1179: 1173: 1172: 1170: 1168: 1153: 1147: 1146: 1144: 1143: 1132: 1126: 1125: 1118: 1112: 1111: 1083: 1077: 1076: 1056: 1050: 1049: 1029: 1023: 1022: 1005:Fadem B (2009). 1002: 996: 995: 985: 967: 958: 952: 951: 923: 913: 895: 886: 880: 879: 869: 845: 839: 838: 836: 834: 825:. Archived from 819:"Selection Bias" 815: 809: 808: 806: 804: 799:on 6 August 2016 795:. Archived from 785: 779: 778: 776: 774: 768: 762:. Archived from 753: 744: 735: 734: 732: 721: 715: 714: 690: 684: 683: 678: 676: 662: 656: 655: 653: 651: 646:on 10 March 2016 642:. Archived from 632: 565: 560: 559: 525:age distribution 517:COVID-19 testing 498:nitrogen dioxide 374:scientific fraud 323: 322: 318: 313: 312: 308: 258:simple Mendelian 32:Spotlight effect 21: 3207: 3206: 3202: 3201: 3200: 3198: 3197: 3196: 3172: 3171: 3170: 3165: 3117: 3112: 3082: 3077: 3051: 3025:Rationalization 2968: 2915: 2903: 2841: 2763:Genetic fallacy 2753: 2666: 2641: 2616: 2540: 2531:Sorites paradox 2511:False precision 2492: 2473:Double counting 2428: 2403: 2375: 2340: 2327:Loaded question 2311:Loaded language 2290: 2231: 2173: 2139: 2086: 2075: 2045: 2040: 2021: 1995: 1860: 1735: 1716:Turkey illusion 1484:Compassion fade 1381: 1372: 1367: 1337: 1336: 1305: 1301: 1262: 1258: 1239: 1235: 1180: 1176: 1166: 1164: 1154: 1150: 1141: 1139: 1134: 1133: 1129: 1120: 1119: 1115: 1100:10.2307/2095230 1084: 1080: 1073: 1057: 1053: 1046: 1030: 1026: 1019: 1003: 999: 983:10.1.1.367.6899 965: 959: 955: 940: 921:10.1.1.144.4478 893: 887: 883: 846: 842: 832: 830: 817: 816: 812: 802: 800: 787: 786: 782: 772: 770: 766: 751: 745: 738: 730: 722: 718: 711: 691: 687: 674: 672: 666:"Biased sample" 664: 663: 659: 649: 647: 636:"Sampling Bias" 634: 633: 629: 624: 561: 554: 551: 533: 490:carbon monoxide 479:Social Register 464:Harry S. Truman 460:president-elect 450:Chicago Tribune 418:Literary Digest 397: 354: 330: 320: 316: 315: 310: 306: 305: 246: 225: 126:bias (see also 111: 79: 35: 28: 23: 22: 15: 12: 11: 5: 3205: 3195: 3194: 3189: 3184: 3167: 3166: 3164: 3163: 3158: 3153: 3146: 3141: 3133: 3128: 3122: 3119: 3118: 3111: 3110: 3103: 3096: 3088: 3079: 3078: 3076: 3075: 3064: 3061: 3060: 3057: 3056: 3053: 3052: 3050: 3049: 3044: 3039: 3038: 3037: 3027: 3022: 3017: 3012: 3003: 2998: 2991: 2986: 2979: 2973: 2970: 2969: 2967: 2966: 2959: 2954: 2949: 2944: 2943: 2942: 2929: 2927: 2918: 2909: 2908: 2905: 2904: 2902: 2901: 2900: 2899: 2885: 2880: 2875: 2874: 2873: 2864: 2857: 2855:Accomplishment 2846: 2843: 2842: 2840: 2839: 2834: 2827: 2822: 2817: 2812: 2811: 2810: 2803: 2802: 2801: 2784: 2778: 2776: 2765: 2759: 2758: 2755: 2754: 2752: 2751: 2746: 2741: 2736: 2731: 2726: 2721: 2712: 2707: 2702: 2697: 2692: 2687: 2682: 2676: 2674: 2668: 2667: 2665: 2664: 2659: 2651: 2649: 2640: 2639: 2630: 2624: 2622: 2618: 2617: 2615: 2614: 2609: 2607:Slippery slope 2604: 2599: 2594: 2593: 2592: 2582: 2581: 2580: 2573: 2563: 2562: 2561: 2550: 2548: 2542: 2541: 2539: 2538: 2533: 2528: 2526:Slippery slope 2523: 2518: 2513: 2508: 2502: 2500: 2494: 2493: 2491: 2490: 2485: 2480: 2475: 2470: 2461: 2460: 2459: 2454: 2452:Cherry picking 2444: 2438: 2436: 2430: 2429: 2427: 2426: 2421: 2415: 2413: 2405: 2404: 2402: 2401: 2396: 2391: 2385: 2383: 2377: 2376: 2374: 2373: 2368: 2363: 2362: 2361: 2350: 2348: 2342: 2341: 2339: 2338: 2333: 2320: 2319: 2318: 2308: 2298: 2296: 2292: 2291: 2289: 2288: 2283: 2278: 2273: 2268: 2263: 2258: 2252: 2250: 2243: 2237: 2236: 2233: 2232: 2230: 2229: 2224: 2219: 2214: 2209: 2204: 2199: 2194: 2189: 2183: 2181: 2175: 2174: 2172: 2171: 2166: 2161: 2156: 2150: 2148: 2141: 2140: 2138: 2137: 2132: 2127: 2122: 2117: 2112: 2106: 2104: 2094: 2088: 2087: 2074: 2073: 2066: 2059: 2051: 2042: 2041: 2039: 2038: 2033: 2026: 2023: 2022: 2020: 2019: 2014: 2009: 2003: 2001: 2000:Bias reduction 1997: 1996: 1994: 1993: 1988: 1983: 1978: 1976:Political bias 1973: 1968: 1967: 1966: 1961: 1956: 1951: 1946: 1941: 1936: 1931: 1921: 1916: 1911: 1906: 1904:Infrastructure 1901: 1896: 1891: 1886: 1879: 1874: 1868: 1866: 1862: 1861: 1859: 1858: 1853: 1848: 1843: 1838: 1833: 1828: 1823: 1821:Self-selection 1818: 1813: 1808: 1803: 1798: 1793: 1788: 1783: 1778: 1773: 1772: 1771: 1761: 1756: 1751: 1745: 1743: 1737: 1736: 1734: 1733: 1728: 1723: 1718: 1713: 1708: 1703: 1698: 1693: 1688: 1683: 1678: 1673: 1668: 1663: 1658: 1656:Pro-innovation 1653: 1648: 1643: 1641:Overton window 1638: 1633: 1628: 1623: 1618: 1613: 1608: 1603: 1598: 1593: 1588: 1583: 1578: 1573: 1568: 1563: 1558: 1553: 1548: 1543: 1538: 1533: 1528: 1523: 1522: 1521: 1511: 1509:Dunning–Kruger 1506: 1501: 1496: 1491: 1486: 1481: 1480: 1479: 1469: 1464: 1459: 1454: 1449: 1448: 1447: 1437: 1432: 1427: 1426: 1425: 1423:Correspondence 1420: 1418:Actor–observer 1410: 1405: 1400: 1395: 1390: 1384: 1382: 1377: 1374: 1373: 1366: 1365: 1358: 1351: 1343: 1335: 1334: 1299: 1276:(5): 545–558. 1256: 1233: 1174: 1148: 1127: 1113: 1094:(3): 386–398. 1078: 1071: 1051: 1044: 1024: 1017: 997: 953: 938: 881: 840: 829:on 9 June 2009 810: 780: 736: 716: 709: 685: 657: 626: 625: 623: 620: 619: 618: 613: 608: 603: 601:Selection bias 598: 593: 591:Reporting bias 588: 583: 578: 573: 567: 566: 550: 547: 532: 529: 396: 393: 353: 350: 338:cave paintings 329: 326: 301: 300: 290: 279: 245: 242: 224: 221: 220: 219: 210: 209: 205:Malmquist bias 201: 193: 181: 165: 157: 154:selection bias 141: 140: 123:Self-selection 119: 110: 107: 95:selection bias 83:selection bias 78: 75: 26: 9: 6: 4: 3: 2: 3204: 3193: 3190: 3188: 3185: 3183: 3180: 3179: 3177: 3162: 3161:Sampling bias 3159: 3157: 3154: 3151: 3147: 3145: 3142: 3139: 3138: 3134: 3132: 3129: 3127: 3124: 3123: 3120: 3116: 3109: 3104: 3102: 3097: 3095: 3090: 3089: 3086: 3074: 3066: 3065: 3062: 3048: 3045: 3043: 3040: 3036: 3033: 3032: 3031: 3028: 3026: 3023: 3021: 3018: 3016: 3013: 3011: 3007: 3004: 3002: 2999: 2997: 2996: 2992: 2990: 2987: 2985: 2984: 2980: 2978: 2975: 2974: 2971: 2965: 2964: 2960: 2958: 2955: 2953: 2950: 2948: 2945: 2941: 2938: 2937: 2936: 2935: 2931: 2930: 2928: 2926: 2922: 2919: 2917: 2910: 2898: 2895: 2894: 2893: 2889: 2886: 2884: 2881: 2879: 2876: 2872: 2868: 2865: 2863: 2862: 2858: 2856: 2853: 2852: 2851: 2848: 2847: 2844: 2838: 2835: 2833: 2832: 2828: 2826: 2823: 2821: 2818: 2816: 2813: 2809: 2808: 2804: 2800: 2797: 2796: 2795: 2794: 2790: 2789: 2788: 2785: 2783: 2780: 2779: 2777: 2775: 2774: 2769: 2766: 2764: 2760: 2750: 2747: 2745: 2742: 2740: 2737: 2735: 2732: 2730: 2727: 2725: 2722: 2720: 2716: 2715:Invented here 2713: 2711: 2708: 2706: 2703: 2701: 2698: 2696: 2693: 2691: 2688: 2686: 2683: 2681: 2678: 2677: 2675: 2673: 2669: 2663: 2660: 2658: 2657: 2653: 2652: 2650: 2648: 2644: 2638: 2634: 2631: 2629: 2626: 2625: 2623: 2619: 2613: 2610: 2608: 2605: 2603: 2600: 2598: 2595: 2591: 2588: 2587: 2586: 2583: 2579: 2578: 2574: 2572: 2571: 2567: 2566: 2564: 2560: 2557: 2556: 2555: 2552: 2551: 2549: 2547: 2543: 2537: 2534: 2532: 2529: 2527: 2524: 2522: 2519: 2517: 2514: 2512: 2509: 2507: 2504: 2503: 2501: 2499: 2495: 2489: 2486: 2484: 2481: 2479: 2478:False analogy 2476: 2474: 2471: 2469: 2465: 2462: 2458: 2455: 2453: 2450: 2449: 2448: 2447:Sampling bias 2445: 2443: 2440: 2439: 2437: 2435: 2431: 2425: 2422: 2420: 2417: 2416: 2414: 2412: 2411: 2410:Secundum quid 2406: 2400: 2397: 2395: 2392: 2390: 2387: 2386: 2384: 2382: 2378: 2372: 2369: 2367: 2364: 2360: 2357: 2356: 2355: 2354:False dilemma 2352: 2351: 2349: 2347: 2343: 2337: 2334: 2332: 2328: 2324: 2321: 2317: 2314: 2313: 2312: 2309: 2307: 2303: 2300: 2299: 2297: 2293: 2287: 2284: 2282: 2279: 2277: 2274: 2272: 2269: 2267: 2264: 2262: 2259: 2257: 2254: 2253: 2251: 2247: 2244: 2242: 2238: 2228: 2225: 2223: 2222:Illicit minor 2220: 2218: 2217:Illicit major 2215: 2213: 2210: 2208: 2205: 2203: 2200: 2198: 2195: 2193: 2190: 2188: 2185: 2184: 2182: 2180: 2176: 2170: 2167: 2165: 2162: 2160: 2157: 2155: 2152: 2151: 2149: 2147: 2142: 2136: 2133: 2131: 2128: 2126: 2123: 2121: 2118: 2116: 2113: 2111: 2108: 2107: 2105: 2103: 2098: 2095: 2093: 2089: 2084: 2080: 2072: 2067: 2065: 2060: 2058: 2053: 2052: 2049: 2037: 2034: 2032: 2028: 2027: 2024: 2018: 2015: 2013: 2010: 2008: 2005: 2004: 2002: 1998: 1992: 1989: 1987: 1984: 1982: 1979: 1977: 1974: 1972: 1969: 1965: 1962: 1960: 1957: 1955: 1954:United States 1952: 1950: 1947: 1945: 1942: 1940: 1937: 1935: 1932: 1930: 1929:False balance 1927: 1926: 1925: 1922: 1920: 1917: 1915: 1912: 1910: 1907: 1905: 1902: 1900: 1897: 1895: 1892: 1890: 1887: 1885: 1884: 1880: 1878: 1875: 1873: 1870: 1869: 1867: 1863: 1857: 1854: 1852: 1849: 1847: 1844: 1842: 1839: 1837: 1834: 1832: 1829: 1827: 1824: 1822: 1819: 1817: 1814: 1812: 1809: 1807: 1804: 1802: 1801:Participation 1799: 1797: 1794: 1792: 1789: 1787: 1784: 1782: 1779: 1777: 1774: 1770: 1769:Psychological 1767: 1766: 1765: 1762: 1760: 1757: 1755: 1752: 1750: 1747: 1746: 1744: 1742: 1738: 1732: 1729: 1727: 1724: 1722: 1719: 1717: 1714: 1712: 1709: 1707: 1704: 1702: 1699: 1697: 1694: 1692: 1689: 1687: 1684: 1682: 1679: 1677: 1674: 1672: 1669: 1667: 1664: 1662: 1659: 1657: 1654: 1652: 1649: 1647: 1644: 1642: 1639: 1637: 1634: 1632: 1629: 1627: 1624: 1622: 1619: 1617: 1614: 1612: 1609: 1607: 1604: 1602: 1599: 1597: 1594: 1592: 1589: 1587: 1584: 1582: 1579: 1577: 1574: 1572: 1569: 1567: 1564: 1562: 1559: 1557: 1554: 1552: 1549: 1547: 1544: 1542: 1539: 1537: 1536:Fading affect 1534: 1532: 1529: 1527: 1524: 1520: 1517: 1516: 1515: 1512: 1510: 1507: 1505: 1502: 1500: 1497: 1495: 1492: 1490: 1487: 1485: 1482: 1478: 1475: 1474: 1473: 1470: 1468: 1465: 1463: 1460: 1458: 1455: 1453: 1450: 1446: 1443: 1442: 1441: 1438: 1436: 1433: 1431: 1428: 1424: 1421: 1419: 1416: 1415: 1414: 1411: 1409: 1406: 1404: 1401: 1399: 1396: 1394: 1391: 1389: 1386: 1385: 1383: 1380: 1375: 1371: 1364: 1359: 1357: 1352: 1350: 1345: 1344: 1341: 1330: 1326: 1322: 1318: 1314: 1310: 1303: 1294: 1289: 1284: 1279: 1275: 1271: 1267: 1260: 1252: 1248: 1244: 1237: 1229: 1225: 1220: 1215: 1210: 1205: 1201: 1197: 1193: 1189: 1185: 1178: 1163: 1159: 1158:"Gallup Poll" 1156:Lienhard JH. 1152: 1137: 1131: 1123: 1117: 1109: 1105: 1101: 1097: 1093: 1089: 1082: 1074: 1068: 1064: 1063: 1055: 1047: 1041: 1037: 1036: 1028: 1020: 1014: 1010: 1009: 1001: 993: 989: 984: 979: 975: 971: 964: 957: 949: 945: 941: 935: 931: 927: 922: 917: 912: 907: 903: 899: 892: 885: 877: 873: 868: 863: 860:(2): 103–15. 859: 855: 851: 844: 828: 824: 820: 814: 798: 794: 790: 784: 765: 761: 757: 750: 743: 741: 729: 728: 720: 712: 706: 702: 698: 697: 689: 682: 671: 667: 661: 645: 641: 637: 631: 627: 617: 614: 612: 611:Spectrum bias 609: 607: 604: 602: 599: 597: 594: 592: 589: 587: 584: 582: 579: 577: 574: 572: 569: 568: 564: 558: 553: 546: 543: 537: 528: 526: 522: 518: 514: 509: 507: 503: 499: 495: 491: 487: 482: 480: 476: 473: 469: 465: 461: 457: 456: 451: 447: 442: 440: 436: 435:George Gallup 432: 428: 424: 420: 419: 410: 406: 401: 392: 390: 385: 383: 379: 375: 371: 366: 363: 359: 349: 347: 343: 339: 335: 325: 298: 294: 291: 287: 283: 280: 277: 274: 273: 272: 269: 267: 263: 259: 250: 241: 239: 235: 231: 217: 214: 213: 212: 207: 206: 202: 199: 198: 194: 191: 187: 186: 182: 179: 178:cholecystitis 175: 171: 170: 166: 163: 162: 158: 155: 150: 146: 143: 142: 138: 133: 129: 125: 124: 120: 117: 113: 112: 106: 103: 100: 96: 92: 88: 84: 74: 72: 67: 65: 60: 59:biased sample 56: 52: 48: 44: 43:sampling bias 40: 33: 19: 18:Biased sample 3160: 3135: 3010:Naturalistic 2993: 2981: 2961: 2932: 2916:of relevance 2859: 2837:Whataboutism 2829: 2805: 2799:Godwin's law 2791: 2771: 2654: 2647:Consequences 2628:Law/Legality 2602:Single cause 2575: 2568: 2446: 2408: 2276:Loki's Wager 2256:Equivocation 2249:Equivocation 1914:In education 1881: 1865:Other biases 1851:Verification 1836:Survivorship 1810: 1786:Non-response 1759:Healthy user 1701:Substitution 1676:Self-serving 1472:Confirmation 1440:Availability 1388:Acquiescence 1315:(3): 19–33. 1312: 1308: 1302: 1273: 1269: 1259: 1242: 1236: 1194:(21): 6198. 1191: 1187: 1177: 1167:29 September 1165:. Retrieved 1161: 1151: 1140:. Retrieved 1130: 1116: 1091: 1087: 1081: 1061: 1054: 1034: 1027: 1007: 1000: 973: 969: 956: 901: 897: 884: 857: 853: 843: 833:23 September 831:. Retrieved 827:the original 822: 813: 801:. Retrieved 797:the original 792: 783: 771:. Retrieved 764:the original 755: 726: 719: 695: 688: 680: 675:23 September 673:. Retrieved 669: 660: 650:23 September 648:. Retrieved 644:the original 639: 630: 538: 534: 510: 506:correlations 483: 468:phone survey 453: 443: 416: 414: 386: 367: 355: 346:burial sites 331: 302: 296: 292: 285: 281: 275: 270: 266:heterozygote 255: 226: 215: 211: 203: 195: 185:Overmatching 183: 173: 167: 159: 144: 121: 115: 104: 86: 80: 70: 68: 58: 42: 36: 3030:Red herring 2787:Association 2468:Conjunction 2389:Composition 2286:Reification 2202:Existential 2154:Existential 1981:Publication 1934:Vietnam War 1781:Length time 1764:Information 1706:Time-saving 1566:Horn effect 1556:Halo effect 1504:Distinction 1413:Attribution 1408:Attentional 976:: 103–126. 803:14 November 773:14 November 486:air quality 472:Bell System 439:Gallup poll 378:fold change 334:prehistoric 286:individuals 234:comorbidity 3176:Categories 3006:Moralistic 2940:Sealioning 2934:Ad nauseam 2861:Ipse dixit 2773:Ad hominem 2597:Regression 2399:Ecological 2212:Four terms 2130:Masked man 1944:South Asia 1919:Liking gap 1731:In animals 1696:Status quo 1611:Negativity 1514:Egocentric 1489:Congruence 1467:Commitment 1457:Blind spot 1445:Mean world 1435:Automation 1142:2008-07-05 622:References 427:Alf Landon 190:confounder 51:population 39:statistics 3047:Straw man 2925:Arguments 2914:fallacies 2888:Tradition 2878:Etymology 2850:Authority 2831:Tu quoque 2815:Bulverism 2585:Gambler's 2554:Animistic 2498:Ambiguity 2464:Base rate 2207:Necessity 2079:fallacies 2012:Debiasing 1991:White hat 1986:Reporting 1899:Inductive 1816:Selection 1776:Lead time 1749:Estimator 1726:Zero-risk 1691:Spotlight 1671:Restraint 1661:Proximity 1646:Precision 1606:Narrative 1561:Hindsight 1546:Frequency 1526:Emotional 1499:Declinism 1430:Authority 1403:Anchoring 1393:Ambiguity 978:CiteSeerX 916:CiteSeerX 911:0805.2775 904:: 38–53. 368:The word 362:parameter 358:statistic 145:Exclusion 3073:Category 2705:Ridicule 2690:Flattery 2680:Children 2577:Post hoc 2457:McNamara 2419:Accident 2394:Division 2241:Informal 1909:Inherent 1872:Academic 1846:Systemic 1831:Spectrum 1811:Sampling 1791:Observer 1754:Forecast 1666:Response 1626:Optimism 1621:Omission 1616:Normalcy 1586:In-group 1581:Implicit 1494:Cultural 1398:Affinity 1329:11685550 1243:Preprint 1228:33143233 549:See also 523:and the 230:dyslexia 149:migrated 64:sampling 2892:Novelty 2867:Poverty 2729:Loyalty 2695:Novelty 2672:Emotion 2621:Appeals 2590:Inverse 2570:Cum hoc 2559:Furtive 2077:Common 2031:General 2029:Lists: 1964:Ukraine 1889:Funding 1651:Present 1636:Outcome 1541:Framing 1293:8127858 1219:7662848 1196:Bibcode 1188:Sensors 1108:2095230 876:9504213 342:middens 319:⁄ 309:⁄ 3140:(1954) 2977:ClichĂ© 2912:Other 2883:Nature 2871:Wealth 2506:Accent 2092:Formal 2036:Memory 1949:Sweden 1939:Norway 1806:Recall 1576:Impact 1452:Belief 1370:Biases 1327:  1290:  1226:  1216:  1106:  1069:  1042:  1015:  980:  948:842488 946:  936:  918:  874:  707:  297:family 2739:Spite 2633:Stone 1924:Media 1894:FUTON 1325:S2CID 1104:JSTOR 966:(PDF) 944:S2CID 906:arXiv 894:(PDF) 767:(PDF) 752:(PDF) 731:(PDF) 502:ozone 500:, or 409:Acid2 109:Types 45:is a 2825:Tone 2700:Pity 2685:Fear 2083:list 1224:PMID 1169:2007 1067:ISBN 1040:ISBN 1013:ISBN 934:ISBN 902:5254 872:PMID 835:2009 805:2009 775:2009 705:ISBN 677:2009 652:2009 370:bias 174:more 47:bias 2144:In 2100:In 1971:Net 1856:Wet 1317:doi 1288:PMC 1278:doi 1247:doi 1214:PMC 1204:doi 1096:doi 988:doi 974:519 926:doi 862:doi 701:180 484:In 384:). 314:or 37:In 3178:: 3008:/ 2890:/ 2869:/ 2717:/ 2635:/ 2466:/ 2329:/ 2325:/ 2304:/ 1323:. 1313:30 1311:. 1286:. 1274:36 1272:. 1268:. 1222:. 1212:. 1202:. 1192:20 1190:. 1186:. 1160:. 1102:. 1092:48 1090:. 986:. 972:. 968:. 942:. 932:. 924:. 914:. 896:. 870:. 858:22 856:. 852:. 821:. 791:. 754:. 739:^ 703:. 679:. 668:. 638:. 496:, 492:, 462:, 441:. 425:, 344:, 66:. 41:, 3152:" 3148:" 3107:e 3100:t 3093:v 2085:) 2081:( 2070:e 2063:t 2056:v 1362:e 1355:t 1348:v 1331:. 1319:: 1296:. 1280:: 1253:. 1249:: 1230:. 1206:: 1198:: 1171:. 1145:. 1110:. 1098:: 1075:. 1048:. 1021:. 994:. 990:: 950:. 928:: 908:: 878:. 864:: 837:. 807:. 777:. 713:. 654:. 321:8 317:5 311:7 307:4 34:. 20:)

Index

Biased sample
Spotlight effect
statistics
bias
population
sampling probability
sampling
selection bias
external validity
selection bias
internal validity
Self-selection
Non-response bias
human-subject research ethics
online and phone-in polls
migrated
selection bias
Healthy user bias
Berkson's fallacy
cholecystitis
Overmatching
confounder
Survivorship bias
Malmquist bias
dyslexia
comorbidity
intellectual disability

simple Mendelian
Mendelian inheritance

Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.

↑