PSYC 2030 Lecture Notes - Lecture 7: Tabula Rasa, Medicine, Dependent And Independent Variables
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There are an extremely large number of such possible values and they are not equally likely. Definitions: pre woodworth: any type of empirical research, woodworth: the defining feature of the experimental method is the manipulation of the independent variable. The experimenter holds all other conditions constant, and observe its effect on the dependent variable (characteristic of behaviour or reported experience). The after-the-fact method we believe what we want to believe (demosthenes: x1, x2, x3 ---------------- observation, freud"s principle of psychic determinism, doctrine of the blank slate, clinical medicine, problems and indications. Cook and campbell: sources of invalidity: historical factors: anything that occurred in the time period between diagnosis and observation. Random assignment: definition: a procedure for placing participants into different group in your study. When randomized assignment is used, each participant has an equal chance of being placed in any of the groups.
