The information needed to determine the internal and external validity of an experimental study is discussed. Internal validity is the degree to which a study establishes the cause-and-effect ...

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 ...

Cancer Causes & Control, Vol. 14, No. 10 (Dec., 2003), pp. 1001-1008 (8 pages) Objective: 'The Norwegian Women and Cancer Study' (NOWAC) was created as a national population-based cohort study by ...

Lithic Technology, Vol. 38, No. 1 (March 2013), pp. 32-45 (14 pages) The advent of flake technology represented a fundamental shift in the capability of hominins to effectively access and process ...

Background Risk factors among overhead athletes have been investigated in many studies. The rotator cuff external rotator weakness is associated with an increased probability of substantial shoulder ...

Cognitive maps are plans or procedures for completing a task or accomplishing a goal. [8] A cognitive map provides a skeleton for directing the analytical process and guiding the logic of the writing; ...