historical design
well-suited for trend analysis; uses secondary source sof evidence (i.e. official records, archives, diaries, etc)
used to gather, validate and synthesize evidence from the past in order to refute or defend hypothesis
experimental design
research design involves performing an experiment to determine what causes somethign to happen
cohort design
design method that is conducted over a period of time, involves members of society, and is often applied in social sciences and medical sciences
cross-sectional design
research method that provides a view of differences between a variety of people or subjects (but at one point in time)