PSYC 2360 Chapter Notes - Chapter 14: Student Exchange Program, Longitudinal Study, Internal Validity

• School: University of Guelph
• Department: Psychology
• Course: PSYC 2360
• Professor: Gloriagonzalez-morales

Document Summary

A basic limitation of experimental research is that for practical or ethical reasons the independent variable of interest cannot always be experimentally manipulated. Therefore there are research designs that are frequently used by researchers who want to make comparisons among different groups of individuals but cannot randomly assign the individuals to the groups. These research designs are essential for many domains such as education, human development, social work, and clinical psychology they are often the only possible approach to studying the variables of interest. Program evaluation research: research designed to study intervention. Involves the use of existing groups programs with the goal of determining whether the programs are effective in helping the people who make use of them (ex. after-school programs, clinical therapies, prenatal-care clinics etc. ) Researcher has little control: random assignment, longitudinal study measurements taken over a period of time researcher will have trouble controlling what happens during that time. Common-casual variables will limit the researcher"s ability to.