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Audio 1: Quasi-experimental Designs
Description: Includes extensive discussion of the threats to validity associated with quasi-experimental designs. Includes accompanying video slide show of main points.
LO: 7-2: Compare different types of independent variables.

Audio 2: Validity and Reliability
Description: Reviews validity, reliability, generalizability, bias, and confounding variables. Includes a link to a website version of the podcast.
LO: 7-3: Evaluate study designs and measures for internal and external validity.

Audio 3: The Hawthorne Effect
Description: The story of the original Hawthorne experiments.
LO: 7-3: Evaluate study designs and measures for internal and external validity.

Video 1: The Placebo Effect’s Role in Healing
Description: Examines the brain basis for the placebo effect.
LO: 7-3: Evaluate study designs and measures for internal and external validity.

Video 2: Regression to the Mean
Description: A brief video in which regression to the mean is explained in poetic form.
LO: 7-3: Evaluate study designs and measures for internal and external validity.

Web 1: The Dunedin Longitudinal Study
Description: Describes a longitudinal study that did not suffer from attrition, as many such studies do.
LO: 7-3: Evaluate study designs and measures for internal and external validity.

Web 2: Support for Same-Sex Marriage: A Role for Social Desirability?
Description: Considers and ultimately rejects the argument that the apparent increase in public support for same-sex marriage reflects socially desirable responding.
LO: 7-3: Evaluate study designs and measures for internal and external validity.