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Feb
15

Stirling Behavioural Science Blog : Reference bias in self-reported personality measures

See on Scoop.itBounded Rationality and Beyond

Reference bias in self-reported personality measuresPosted by Mark Egan at Saturday, February 14, 2015From p18 of Heckman & Kautz (2013). Fostering and Measuring Skills: Interventions that Improve Character and Cognition. NBER Working Paper:

“Answers from self-reports can be misleading when comparing levels of personality skills across different groups of people. Most personality assessments do not anchor their measurements in any objective outcome. For example, the German Socio-Economic Panel (GSOEP) survey asks respondents to rate themselves on the following statement:"I see myself as someone who tends to be lazy”. The scale ranges from 1 = “strongly disagree” to 7 = “strongly agree.” In answering this question, people must interpret the definition of “lazy,” which likely involves comparing themselves to other people. If different groups have different standards or reference points, comparing traits across groups can be highly misleading. Laziness may mean different things to different groups of people.

Schmitt, Allik, McCrae, and Benet-Mart nez (2007) administer a Big Five personality questionnaire to groups of people in a variety of different countries. Using their estimates, [the below figure] shows how OECD countries rank in Conscientiousness from high to low. The bars display the average number of hours that people work in the country. The results are surprising. South Korea ranks second to last in terms of Conscientiousness but also ranks first in the number of hours worked. South Korea is not an anomaly. Country-level reports of Big Five Conscientiousness are unrelated to the number of hours worked.“
See on economicspsychologypolicy.blogspot.it

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