PSY 250 Chapter Notes - Chapter 4-5: Dependent And Independent Variables, Monotonic Function, Confounding
Document Summary
Behavioral scientist uses the term validity refers to the extent to which given, everything that is known, a conclusion is reasonably accurate - that is the extent to which it approaches what we would call the truth. Construct validity: the extent to which the measurement or manipulation of a variable accurately represents the theoretical describe being studied. Internal validity: the accuracy of conclusion drawn about cause and effect. External validity: the extent to which a study"s findings can accurately be generalized to other populations and settings. Variable: any event, situation, behavior, or individual characteristic that changes or varies. Operational definition of a variable is the set of procedure used when you measure of manipulate the variable. Positive and negative linear relationship - monotonic function (doesn"t change direction) Curvilinear relationship: increase in the value of one variable are accompanied by systematic increases and decrease in the values of the other variable.
