For questions regarding the consistency with which variables can be measured, by different observers or over time.

learn more… | top users | synonyms

4
votes
1answer
58 views

How to measure precision in classical test theory framework?

What methods or approaches exist or might be developed to measure precision of measurement in a classical test theory framework? Standards for Educational and Psychological Testing (American ...
5
votes
2answers
661 views

What is the standard error of measurement for teacher made multiple choice tests?

Assume a teacher constructs a four-choice multiple choice test. Each item has only one correct response. The test is scored from 0 to 100 representing the percentage of items answered correctly. I ...
4
votes
0answers
174 views

Test-retest reliability of Iowa gambling task performance and Expectancy Valence Model parameters

I've just been learning about the Expectancy Valence Model of the Iowa Gambling Task (see Busemeyer & Stout, 2002; Yechiam et al 2005). The model includes three parameters: motivation, ...
5
votes
1answer
550 views

What is the reliability of GPA?

I'm in the process of performing a meta-analysis that includes Grade Point Average (GPA) as one of the variables. For some purposes, it might be useful to have an estimate of the reliability of ...
9
votes
1answer
341 views

Are there sex differences in inter-rater consistency of attractiveness ratings of opposite-sex faces?

Is there any research that assesses whether males or females judge faces of the opposite sex with a greater internal consistency? That is, is the standard deviation of attraction ratings for a ...
4
votes
1answer
495 views

What is the effect of ADD/ADHD on performance variability on cognitive tests over time?

I've read research reporting that lower IQ is correlated with higher variability in reaction time. But such research does not seem to disentangle the possible effect of ADD, in which case you might ...