HST250H1 Chapter Notes - Chapter 9: Naturalistic Observation, Field Experiment, Internal Validity
Document Summary
Internal validity: extent to which one can demonstrate that one s treatment is having an impact on a given outcome. External validity: being able to extrapolation from a particular study to other groups. Pseudo-experimental design: does not permit clear causal inferences about the impact of a treatment on a dependent variable. Classic experimental design: experiments used to solve problems in making causal inferences. Control: variables taken into consideration in designing a study. Confounding: those that obscure or enhance a relationship. Between-subject design: experiment with an experiment and control group that must involves randomization. Within-subject design: single subject or few subjects experiments. Baseline measure: measurement taken once stability has been achieved. Hawthrone effect: effect refers to any variability in the dependent variable. Control by constancy: control achieved in within-subject design. Field experiment: experiment in which occurs in a natural setting. Naturalistic observational study: study in which people are being studied but do not alter environment.
