Psychology 2080A/B Study Guide - Midterm Guide: Percentile Rank, Standard Score, Standard Deviation

• School: Western University
• Department: Psychology
• Course: Psychology 2080A/B
• Professor: Rachel Plouffe

Document Summary

_______ is always associated with a sampling process: randomization, error, factor analysis, testing. Administering a test with precisely the same instructions and format is giving it under: normative conditions, standard conditions, facilitative conditions, group administration. Which of the following is a permissible operation for nominal data: multiplication by transform equations, creation of frequency distributions, comparison of scores to determine relative quantities, identification of construct validity. The standard deviation: reflects the similarity among a set of scores, equals the sum of all scores minus the mean squared, is an approximation of the average deviation around the mean, always equals 0. Which set of scores below contains the most variability: 15, 15, 15, 15, 15, 15, 3, 4, 3, 4, 3, 4, 1, 4, 2, 5, 1, 6, 25, 27, 25, 27, 25, 27. A z score of 3 is approximately how many standard deviations above the mean: 0, 3, 6, 99 recall it is calculated in sd units.