Alan Turing and his famous test Don’t forget Demo
What evidence would be necessary to persuade you that an animal was intelligent? Continuum vs. Discrete Measures of Intelligence
Face Validity – The extent to which a test appears to test-takers to be valid Content Validity – How well a test provides a representation of the content domain Criterion Validity – How well the test predicts Construct Validity – Does the content domain measure what its supposed to
Multiple Choice – Easy to administer, hard to find good distracter items. Likert Scale – Item in which you rate on a scale your level of agreement: even vs. odd Q-sorts – checklist of adjectives: susceptible to context effects Free response – Need a coding Scheme
Double Barreled Questions: “I didn’t vote for Gore because I didn’t like his stance on affirmative action”
Redundant Items Lower Content Validity by Over-sampling parts of the content domain. Mix positive and negative questions to overcome positive response bias.
Ambiguous Items lower validity: To what extent to you agree with the following: “An eye for an eye, a tooth for a tooth” Turn the other cheek vs. I’ll hurt them twice as much as they hurt me…
Ambiguous Items lower validity: “I’m constantly searching my room for bugs”
Demand Characteristics: Thank you for your participation in this study. You have submitted photographs of yourself, and these have been reviewed by 100 raters, at least 98 of whom have classified you as "extremely unattractive." We believe that especially unattractive people such as yourself generally have low self-esteem and feel nervous about interactions with other people. Please keep this in mind as you fill out the following survey.