PSYC 201W Lecture Notes - Lecture 10: Sensory Deprivation, Blind Experiment, Demand Characteristics

• School: Simon Fraser University
• Department: Psychology
• Course: PSYC 201W
• Professor: Barbara Adler

Document Summary

Chapter 10 - experimentation and validity categories of inference and validity type: * construct validity - are the constructs that researchers claim to be studying are, in fact, the constructs that they truly are manipulating and measuring. * statistical validity - involves the proper statistical treatment of data and the soundness of researcher"s statistical conclusions. * internal validity - degree to which a researcher is certain that a particular variable had a causal effect on another. * external validity - degree to which a study"s results can be generalized to other situations that the one in which they were obtained construct validity. * tryon, 1942 - selective breeding of rats. * does selective breeding constitutes a valid operational definition of heredity statistical conclusion validity. * possible sources of low statistical conclusion validity: * reliability of treatment implementation (across various conditions) internal validity. * is the iv responsible for the change in the dv? external validity.