SSCI 2900U Lecture Notes - Lecture 2: Asteroid Family, Quasi, El Al
19 May 2016
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Lecture 2 continued, causation & research methods, ssci 2900u research methods, Differ from true experiments in that internal validity is harder to establish. e. g. , natural experiments, in which naturally occurring phenomena or changes introduced by people who are not researchers result in experiment-like conditions. This occurred in the 1930s and 1940s in the prairie provinces of alberta and. Saskatchewan, two provinces that were similar in many ways. Two different social movements, social credit and the cooperative. Commonwealth federation (ccf) came to power in alberta and saskatchewan respectively. Researchers could compare the effects the different movements had on the their respective provinces. A drawback that researchers of the two movements had to face involved the idea that the two provinces may have been different in important ways before the two movements came to power. It may have been those differences, rather than rule by two different movements, that produced the differences between the two provinces that developed later.
