PSYC 2001 Study Guide - Final Guide: External Validity, Internal Validity, Scatter Plot

• School: Carleton University
• Department: Psychology
• Course: PSYC 2001
• Professor: Cheryl Harasymchuk

Document Summary

Goal of course: teach you to be good consumers of psychology information, as well as teach you a foundation of tools to produce your own psychology information, the way you have been taught to be good consumers and producers of information is the scientific method. 3 features of an experiment manipulation of independent variable, measurement of dependent variable, control of extraneous variables: control of extraneous variables that are unsystematic and systematic, extraneous variables. Confounds vary systematically with levels of the independent variable (i. e. , piggyback) and influence the dependent variable: e. g. , caffeine and attention span study (confound= environment) Unsystematic extraneous variables (error variance): e. g. , anything that contributes noise to the study and gets in the way of observing the good variance (i. e. , variance between levels of the independent variable), e. g. , measurement error, individual differences, situation noise. Sampling want a representative sample that mirrors the population of interest: measurement building blocks of all research claims are variables.