PSY 3213L Chapter Notes - Chapter 4-14: Null Hypothesis, Confounding, Observer-Expectancy Effect

• School: University of Florida
• Department: Clinical and Health Psychology
• Course: PSY 3213L
• Professor: kilimenko

Document Summary

Exploratory data collection and anaylsis : is aimed at classifying behaviors, identifying potentially important variables, identifying relationships between those variables and the behvaiors. Causal relationship, one variable directly or indirectly influences another. Unidirectional, a influences b but not vice versa. Observing two values of two or more variables and determining what relationships exist between them. Make no attempt to manipulate variables, observe as is . Makes it possible to predict from the value of one bariable the probable value of the other variable. The variable used to predict predictor variable. The variable whose value is being predicted is called the criterion variable. Directionality problem: the direction of causality is sometimes difficult to determine. Manipulating the variables may be impossible or unethical. Can provide rich source of hypothesis that can be later tested. You want to see how naturally occurring variables relate in the real world. Experimental research incorporates a high degree of control over the variables in the study.