Understanding Different Types of Survey Research

The video tutorial explains survey research, which is conducted using questionnaires or interviews. It covers three main types: descriptive research, which collects data at a single point in time; longitudinal studies, which examine effects over time through cohort or trend studies; and evaluation research, which assesses the impact of planned changes. Examples are provided for each type to illustrate their application. The tutorial concludes by revisiting the initial example of a survey on a new law banning soft drinks in schools, identifying it as evaluation research.

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