Good but bittersweet news for fans of The Americans. The hit FX drama series, which focuses on Russian spies living undercover as Americans in the 1980s, is currently in its fourth season, with three more episodes to go, and FX has renewed the critically acclaimed show for not one but two more seasons!
Experiments that take advantage of natural occurrences are quasi-experiments, for example, comparing achievement level of first-born children with that of later-born children; or comparing student performance at two schools, one of which has a lower student-teacher ratio.
Quasi-experimental research designs, like experimental designs, test causal hypotheses. In both. experimental (i.e., randomized controlled trials or RCTs) and quasi-experimental designs, the programme. or policy is viewed as an âinterventionâ in which a treatment â comprising the elements of the.