PSYC 1100 Study Guide - Midterm Guide: Dependent And Independent Variables

• School: Douglas College
• Department: Psychology
• Course: PSYC 1100
• Professor: David Prime

Document Summary

Learn about the relationships between objects ad events by comparing the patterns of variation in a series of measurements. First : measure a pair of variables : are properties whose values can vary across individuals or over time. Second : series of measurements rather than just making one. Third : correlation : two variables are said to covary: or be correlated when variations in the value of one variable are synchronized with variations in the value of the other. Correlation coe cient : a mathematical measure of both the direction and strength of a correlation and it is symbolized by the letter r (relationship: limited range, numbers outside the range are meaningless. Positive correlation : less is less . more is more. Negative correlation : more is less . less is more. Natural correlations : correlations observed in the world around us. Third-variable correlation : two variables are correlated only because each is casually related to a third variable.