PSYB04H3 Lecture 6: Lecture 6
Document Summary
How do you know it"s an association claim/ correlational study. February 9th, 2017: both variables are measured (not manipulated, often the case that variables can"t be manipulated i. e. suicide risk rises among family, friends of suicide victims, tanning. Basics looks at whether and to what degree measured variables are related: purpose: examine relationships, make predictions, can"t indicate cause and effect, 2 variables = bivariate correlation, 3+ variables = multivariate correlation. After recording the data, the next step in testing an association claim is to describe their relationship between two measured variables using scatterplots and the correlation coefficient r" (in relation to 1 or -1) A bivariate correlational study may not have used a random sample, but you should not reject. Instead, accept the study"s results and leave the question of generalization to the next study. Would you expect them to be correlated: variables should be selected based on some rationale math attitudes and math achievement.
