In my previous blog post, I noted that reliability and validity are two essential properties of psychological measurement. Measures of intelligence, personality, vocational interests, and so forth ...

There is a distinction that one learns about on the first day of a course in psychological research methods. It is the difference between internal and external validity. Internal validity is ...

The objective of this study is to assess the validity of Arabic version of the abridged International Index of Erectile Function among a sample from the Egyptian populace. Two groups were included in ...

CTET & TET Validity Extension: National Council for Teacher Education (NCTE) has granted its approval to the extension of validity of CTET and TET Certificate to lifetime. Earlier, the Certificate of ...