Question

When researchers use SPSS to calculate internal consistency of a scale, a necessary step to obtain the Cronbach alpha value is ______.

a. None of them above

b.Checking if the items indicate a strong correlation by a scatterplot

c. Checking if there is missing value

d. Checking if there is an item that is reversed-order

Answer 1

Cronbach's alpha is a measure of internal consistency, that is, how closely related a set of items are as a group. It is considered to be a measure of scale reliability. As the average inter item correlation increases, Cronbach's alpha increases as well

Hence,

When researchers use SPSS to calculate internal consistency of a scale, a necessary step to obtain the Cronbach alpha value is Checking if the items indicate a strong correlation by a scatterplot

So the correct option is option b