PSYC 2360 Study Guide - Final Guide: Observational Error, Interrupted Time Series, Descriptive Statistics
16 Apr 2013
School
Department
Course
Professor
Document Summary
Most experimental research designs include more than one independent variable (aggressive behaviour can be caused by more than one thing) Factorial experimental designs: experimental designs with more than one iv (manipulation) Factor: each of the manipulated variables: 1 iv (one-way design); 2 ivs (two-way design), etc. Cells: number of conditions (total #: 2x2 (4 conditions, 3x3 (9 conditions) Don"t need as many participants when more ivs. Violent cartoon-frustrated (1); violent cartoon-nonfrustrated 1st iv, 2 levels. (2); non-violent cartoon, frustrated (3); non-violent cartoon, non-frustrated (4) 2nd iv, 2 levels. Crossing the factors: each level of each iv occurs with each level of other iv"s: accomplished through random assignment, crossing 2 factors; 2x2 design = 4 outcomes/conditions. Interaction: a pattern of means that may occur in a factorial experimental design where the influence of 1 iv on the dv is different at different levels of another variable.
