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 ...

This is a preview. Log in through your library . Abstract Methodological issues must be examined within the context of metatheoretical perspectives. More specifically, at the level of drawing ...

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 ...

Journal of Alcohol and Drug Education, Vol. 64, No. 2 (August 2020), pp. 52-61 (10 pages) The purpose of this replication study is to establish external validity of the ADSI-S. A convenience sample (n ...

Standardization serves to reduce individual differences within study populations (within-experiment variation) in order to facilitate detection of treatment effects, and to reduce differences between ...

The following represents disclosure information provided by the author of this manuscript. All relationships are considered compensated unless otherwise noted. Relationships are self-held unless noted ...

The following represents disclosure information provided by authors of this manuscript. All relationships are considered compensated unless otherwise noted. Relationships are self-held unless noted. I ...