PSYCH 1F03 Lecture Notes - Lecture 1: Histogram, Statistical Hypothesis Testing, Normal Distribution
30 Mar 2017
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Anecdotal evidence: evidence gathered from other or self experience. Cannot be sure that results are due to energy drinks alone. Dependent variable: variable being observed by the scientist. Control group: doesn"t receive manipulation of independent variable. Experimental group: receives manipulation of the independent variable. Participants should be as similar as possible in each group. Within subject design: manipulating the independent variable within each participant to minimize the effect of external variables on the dependent measure. Practice effect: improved performance over the course of an experiment due to becoming more experienced. Between subjects design: one group acts as the control group. Confounding variable: a variable other than the independent variable that has an effect on the results. Population : general group of people we are trying to learn about. Random assignment: assigning subjects to either the experimental or control group at random to avoid any biases that may cause differences between the groups of subjects.
