PSYCH 100 Lecture Notes - Lecture 3: Caffeine, Dependent And Independent Variables, Weight Watchers
Document Summary
Psych 100 lecture 3 correlational method continued and experiments. A perfect correlation is either a +1. 0 or a -1. 0. Perfect correlations are more theoretical than actual (that is, they don"t really. The closer the correlation coefficient is to either +1. 0 or -1. 0, the stronger the relationship is. More examples of positive and negative correlation o. Let"s say we have a correlation coefficient of +0. 80 for height and weight. Generally, the taller you are, the more you weigh. Let"s say we have a correlation coefficient of -0. 73 for depression and grades. o. Experiment: the researcher manipulates one variable to study its effect on. Experimenter effects: when a researcher unintentionally effects the results. Double-blind study: when both the experimenter and the participant are blind to which group the participant was placed in. Independent variable (iv): the variable that is controlled or manipulated. Dependent variable (dv): the variable that is being measured (to see what. Experimental group: the group that receives the iv.
