PS102 Chapter Notes - Chapter 9: Content Validity, Percentile, Psychological Testing
Document Summary
Chapter 9 psychology chapter 9: intelligence and psychological testing. Psychological test: the measure of a person"s behaviour (in a sample) Used to see individual differences in people"s abilities, interests. Two sections; mental ability tests and personality tests. Aptitude tests: measure specific types of mental abilities (perceptual speed and accuracy) Achievement tests: measures a person"s knowledge of different subjects (math, Measure different parts of personality (motives, values) Also called personality scales because no right/wrong answer. Uniform procedures used in scoring of a test eg. same instructions, same questions, same time. How much a score on a psychological test ranks compared to other scores on the test eg. above average in creativity . Allows you to convert your score into a percentile. Percentile: percentage of people who score at or below your score. Measurement consistency of a test: test-retest reliability: taking test on two different occasions. Correlation coefficient: degree of relationship between two variables (+1- perfectly strong correlation)
