Lecture 2 - Checking for Social Desirability

Question 1

What is the Differential Reliability Index?

Answer 1

DRI = √(r_is^2 - r_id^2)
r_is^2 = the proportion of the total variance that is measured by the item variance
r_id^2 = how much of the social desirability is attributed to the item

It is used to check for social desirability in items
But it requires the use of a social desirability scale that employs a continuous scoring format.