Section 4A: Research Methods
Arnett, Human Development, chapter 1, section 3 (pp. 26 - 37)
Summary of Krech & Rosenzweig Enriched Environment Study
Macionis, Society: The Basics, chapter 1, pp. 16 - 29
Robert H. Lauer and Jeannette C. Lauer, "Critical Thinking: Recognizing Fallacies," pages 15 – 23 in Social Problems and the Quality of Life, 12th edition, McGraw-Hill; Chapter 1: “Understanding Social Problems”