Professor Thames tried to use a Guttman scale on his data set that he had seen published in a major journal.Thames was upset because the items did not form a Guttman scale on his data.Confused,he asked for your help.You should tell him:
A)the article that appeared in the journal was probably in error
B)he should recheck his scaling techniques because he probably made an error
C)items may form a Guttman scale in one sample but not in another
D)it was probably not a very good scale
E)none of these choices

Question

Quizplus · Accepted Answer

Items may form a Guttman scale in one sample but not in another due to various reasons such as sample size, sample characteristics, and item selection. It is not uncommon for different researchers to obtain different results with the same set of items when using Guttman scaling. Therefore, Thames should check if the issue is related to his data set or if the items should be revised or eliminated.

Professor Thames Tried to Use a Guttman Scale on His