PSYC 102 Lecture Notes - Lecture 3: Observer-Expectancy Effect, Dependent And Independent Variables, Internal Validity
PSYC 102 verified notes
3/8View all
Document Summary
10 jan 2019 continued : research methods in psychology. Experiments are the only way to isolate cause and effect. Assumed to be dependent on what was manipulated. Although can also look how it affects physiological. See reward = 5 x less time than not seeing reward. Kids can wait longer when they can"t see the marshmallow. Statistical significant (in respect to experimental manipulations) To what degree is the variation different to what we expect by chance. Confounds threaten the internal validity of an experiment. Can assume that groups are equal on every dimension except the one that is manipulated. Assessing relationship between 2 or more variables. Controlled experiment to establish cause and effect. Control condition: eye contact with no expression. Degree of smile or frown from participant. When conditions differ in more than the intended way. In our study, not possible, but coder can blind.
