Alternate forms reliability in psychology

 

Alternate forms reliability. A procedure for obtaining evidence of the reliability of test scores by calculating a reliability coefficient from scores produced by two or more forms of the same test. This is also known as Equivalent Forms Reliability. When there are two forms, the term Parallel Forms is sometimes used.

Anchors in Psychological Reserach

 

Anchors are the words at each end of a rating scale that indicate the meaning of the extreme values such as strongly disagree and strongly agree.

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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).