Anchor: A valid cause-and-effect design-that is, one with internal validity-rules out alternative explanations of results by comparing what happened with an intervention to what happened in the absence of the intervention.
Entailed: They need to compare the use of intervention and without.
Contradiction: They do not take into account the effect of the intervention.
Contradiction: The private sector does not need to make adjustments to their guidelines.
Contradiction: a woman on a street corner
Contradiction: During 1970, evaluation case studies were similar to research case studies.
Contradiction: We purchased The Eagle song on cassette tape.