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Monday, May 28, 2012

Open access: Lärobok i forskningsmetodik

Mer och mer information blir gratis tillgänglig på nätet. Här är en ambitiös lärobok i forskningsmetodik som just har publicerats

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Information om skönmålning kan leda till förbättrad kvalitet i testdata


Skalor för att mäta skönmålning har ofta ifrågasatts. Här är en studie som använts sådana skalor för att besluta om omtestning, som befanns ge mera rättvisande resultat.


Self-report personality questionnaires often contain validity scales designed to flag individuals who intentionally distort their responses toward a more favorable characterization of themselves. Yet, there are no clear directives on how scores on these scales should be used by administrators when making high-stakes decisions about respondents. Two studies were conducted to investigate whether administrator-initiated retesting of flagged individuals represents a viable response to managing intentional distortion on personality questionnaires. We explored the effectiveness of retesting by considering whether retest responses are more accurate representations of a flagged individual's personality characteristics. A comparison of retest scores to a baseline measure of personality indicated that such scores were more accurate. Retesting should only work as a strategy for dealing with intentional distortion when individuals choose to respond more accurately the second time. Thus, we further explored the emotional reaction to being asked to retest as one possible explanation of why individuals who engage in intentional distortion respond more accurately upon retest.


Referens
Ellingson, J. E., Heggestad, E. D., & Makarius, E. E. (2012). Personality retesting for managing intentional distortion. [doi:10.1037/a0027327]. Journal of Personality and Social Psychology, 102, 1063-1076.

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