CHYS 2P52 Study Guide - Quiz Guide: Internal Validity, Measuring Instrument, Confounding

• School: Brock University
• Department: Child and Youth Studies
• Course: CHYS 2P52
• Professor: Jan Frijters

Document Summary

Chys 2p52 test chapters 7, 8, 9, 14. Experimental research strategy establishes the existence of a cause and effect relationship between 2 variables. Needs manipulation, measurement, comparison and control (true) experiment shows that the changes in one variable are directly responsible for the changes in a second variable. Dependent variable observed for changes to assess the effects of manipulating the independent variable. Treatment condition a situation characterized by one specific value of the manipulated variable. Levels the different values of the independent variable selected to create and define the treatment conditions. Extraneous variables all variables that aren"t dependent or independent. Third variable problem a third undefined variable that may be controlling the 2 variables and be responsible for producing the observed relation. Directionality problem the existence of a relationship does not always explain the direction of the relationship. Manipulation identifying the values of the independent variable to be examined and creating treatment conditions.