PSYCH 1100 Lecture Notes - Lecture 6: Random Assignment, Dependent And Independent Variables

• School: Ohio State University
• Department: Psychology
• Course: PSYCH 1100
• Professor: Brian Siefke

Document Summary

Manipulation- a characteristic of experimentation in which the researcher artificially creates a pattern of variation in an iv to determine its causal powers. Instead of looking for synchrony in patterns that nature offers, you cause a variation in one variable, observe a pattern of variation in another variable, and look for synchrony between the variables. Independent variable (iv)- the variable that is manipulated in an experiment treated in a particular way particular way in the study. Experimental group- the group of people that are. Control group- the group of people not treated in a. Dependent variable (dv)- the variable that is measured. It is impossible to eliminate all third variables around a possible causal relationship using natural correlations. Experiment- a technique for establishing the causal relationship between o varaibles. Random assignment- a procedure that uses a random event to assign people to the experimental or control group.