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 ...

Determining the validity of a business license is a fairly easy process, thanks, in part, to the Internet. Making a few phone calls is just as effective. A business is required, by law, to present ...

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 ...