POL SCI 3 Lecture 4: PS 3 9_8_2016
9 Sep 2016
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Causal arrow suggests the causal relation outcome/ dependent variable (y) X is necessary (to y): if y is present, x must be present. X is sufficient (to y): if x is present, y will be present (x is enough to product outcome) Variation in variable: x and y are either present or absent either there or not. In order to receive a grade of a in ps3, good attendance in lecture is necessary: a present/ absent attendance present/ absent. In order for a riot to occur, a triggering event is necessary: riot present/ absent. Cheating on an exam is sufficient to fail in ps3: cheating present/ absent. A catastrophic battle loss is sufficient to lead the war to end but surrender or cease- fire on the part of the losing part: cbt present/ absent surrender present/ absent. Look at all cases when y is present. If in all cases x is also present.
