Psychology 1000 Lecture Notes - Lecture 10: Standard Deviation, Frequency Distribution, Central Tendency

• School: Western University
• Department: Psychology
• Course: Psychology 1000
• Professor: Dr.Mike

Document Summary

Black and bevan (1992)- aggression scale to movie-goers before or after violent or nonviolent movie. What does variance mean: people who went to aggressive movie they were more aggressive after they left the movie. Maybe there is an issue with film and violence. Problem with this study: short- term, different initial violence scores/correlational study might only affect people who are prone to violence anyways. North american: % households with 1 or more tvs: 99, average number of tvs per house: 2. 24, % who watch while eating dinner: 66, average daily viewing: 6h 47 mins, number of netflix subscribers: 81 million. Stats are si(cid:373)plified (cid:449)ith a fe(cid:449) (cid:374)u(cid:373)(cid:271)ers . 3 measures of central tendency: mean (represented by x with bar on top or just m): Add up numbers and divide by n (the number of students: median (represented by mdn): Midpoint of ranked distribution (put lowest to highest, then find middle one)