Test Your Knowledge of Test Equivalence

Which reliability model assumes unequal true score variance, unequal means, and unequal error variances?

Which reliability model assumes equal true score variance, equal means, and unequal error variances?

Which model is considered the most strict and only exists in theory?

Which reliability model assumes equal true score variance, equal means, and equal error variances?

Which reliability model assumes equal true score variance, unequal means, and unequal error variances?

Which model is considered the least strict?

What reliability model do we assume Cronbach's alpha?

In practice, data obtained in the “real world” will only satisfy:

What does the mean inter-item correlation measure in relation to internal consistency reliability?

At approximately how many items does the increase in Cronbach's alpha become more gradual and potentially less beneficial?

What pattern is observed when examining the relationship between the mean inter-item correlation and Cronbach's alpha?

Why might a more homogenous sample yield lower reliability estimates than a heterogeneous sample?

What type of research examines the degree to which test score reliability from a particular measure is consistent across samples?

What is a reliability generalization study?

Why is it inappropriate to say that a test is reliable?

Which sample size is required for respectable confidence when the reliability is 0.70?

Which sample size is required for respectable confidence when the reliability is 0.90?

What is the relationship between sample size and confidence intervals associated with Cronbach's alpha?

Which coefficient is a more modern approach to estimating internal consistency reliability?

What is the key difference between coefficient alpha and coefficient omega?

Which coefficient is a better estimate of internal consistency reliability?