Showing posts with label hypothesis testing. Show all posts
Showing posts with label hypothesis testing. Show all posts

Friday, January 29, 2021

Alpha in Psychology

 Alpha has more than one meaning in psychology.

In research methods, alpha is the probability of rejecting a true null hypothesis. Alpha is often set at .05 in psychological studies.

Alpha is also short for Cronbach's alpha, which is also called Coefficient alpha, which is a value that describes the degree of internal consistency among the items in a test or questionnaire. Some authors use the Greek letter for alpha (a).