PSYB04H3 Lecture Notes - Lecture 8: Repeated Measures Design, Random Assignment, Dependent And Independent Variables
Document Summary
Experimental methods: establishing causality: experimental methods are the way we prove causality. If just look at correlation of ice-cream and drowning, one of them doesn"t cause the other; it"s the heat. In order to establish this, have to rule out other explanations: an experiment is the only way to establish causality. Like if you see 2 people, even if there far apart and talking, don"t walk between the people, walk around: maybe the behaviour was seen as odd and avoided these people. In research methods, be careful of what you call a experiments. [definition] research design in which a variable is manipulated and the effect on another variable is measured: to see what the effect is on the manipulated variable. Iv is manipulated (deliberately varied: or changed, causal variable, dv is measured, the variable in which change is caused, all other variables are controlled, how you take care of constants.
