PSY 240 Chapter Notes - Chapter 4: Criterion Validity, Convergent Validity, Working Memory
Document Summary
What is happiness: satisfaction with life scale (swls) measures how satisfied people are with their lives, positive psychology seeks to learn about human thriving, flourishing, optimism, resilience, joy, and capabilities. Advantages of multiple methods: essential for us to develop a complex understanding of a phenomenon. Green = people: testing whether the multiple methods are related and to what degree they add to the understanding of a given concept. Green = people: comparing the sats of female and male college applicants, because the sat is quantitative. Evaluating measures: test must be both reliable and valid to be meaningful or useful. If a test is reliable, it is affected less by measurement error or chance variation than if it is unreliable. Interobserver reliability is the measure stable across observers/raters: intraclass correlation coefficient (icc) is used to assess this. Interitem reliability if the items of a test are all measuring the same construct, the correlation among these items should be high.
