PSYB01H3 Study Guide - Blind Experiment, Ecological Validity, Alternative Hypothesis
Document Summary
Basics of experimentation: control over all aspects of the study design, controls what levels of the independent variables are to be manipulated. Experimental control: built into study"s design, experimental control by holding as many confounding variables constant as possible a. If a variable is held constant, it cannot account for the results of the experiment: variables are held constant through standardization of test administration and test scoring. It is unrealistic to control for all confounding variables, but must try to control for the most influential ones on the study. Research design alternatives: two types of experimental designs, between subject design i. Individuals matched for testable characteristic and then randomly assigned to either treatment condition or control condition (different levels of the independent variable: greater power to detect statistical significance than simple random assignment. Between vs within subjects design: between subjects threatened by randomization, randomized clinical trials i. i. e. drug trials, within subjects threatened by carryover effects.
