____ make observations of the same people over time.Multiple choice question.Double-blind studiesMeta-analysis designsLongitudinal designsCorrelational designs

Fill in the Blank QuestionFill in the blank question. designs make observations of the same people over time.

compare and contrast between experimental and observational study designs

______ studies are those in which participants do not know the experimental condition (group) to which they have been assigned.Multiple choice question.Single-blindDouble-blindExperimentalCorrelational

Which of the following designs will use the same subjects over a long period of time?

Cohort effects are most commonly associated with which type of research design?Group of answer choicesC) Sequential designsB) Longitudinal designsA) Cross-sectional designsD) Quasi-experimental designs