Psychology 2036A/B Chapter Notes - Chapter 2: Longitudinal Study, Null Hypothesis, Diminished Responsibility

• School: Western University
• Department: Psychology
• Course: Psychology 2036A/B
• Professor: Doug Hazlewood

Document Summary

Epidemiology is the study of factors or determinants of health status among population groups and use of that knowledge to help control spread of health problems in population. The 5 classic measures of the health of a population are: mortality, morbidity, incidence, prevalence, and relative risk. Proximal vs. distal causes of illness: proximal (cid:523)precipitating(cid:524) , distal (cid:523)predisposing(cid:524) to explain distal causes of an illness, researchers may examine factors or events that predate the illness by months/years. R = (cid:882). (cid:884)(cid:883) - 0. 39 is a weak correlation; 0. 40-0. 59 is moderate correlation; 0. 60+ high correlation. Independent v. dependent variables: dependent variable: a study"s outcome variable. Experimental v. control groups: experimental group: the test group, control group: does not receive special condition or treatment. Examined the role of three educational interventions mass media, individual instruction, or no instruction on heart disease. intervention and then an assessment. But, more variability in results due to large number of subjects.