SOAN 2120 Lecture 7: SOAN 2120 – Introductory Methods – October 31st, 2017

• School: University of Guelph
• Department: Sociology and Anthropology
• Course: SOAN 2120
• Professor: David Walters

Document Summary

Soan 2120 introductory methods october 31st, 2017. They may be substituted in situations where an experimenter cannot use all the features of a classical experimental design, but they have weaker internal validity: quasi-experimental designs experimental designs that are stronger than pre- experimental designs. They are variations on the classical experimental design that an experimental use in situations or when an experimental has control over treatment. All four of these groups receive a post-test: factorial design a type of experimental design that considers the impact of treatment. Interaction effect the effect of two independent variables that operate simultaneously. The effect of the variables together is greater than what would occur from a simple addition of the effects from each. This testing effect threatens internal validity because more than the treatment along affects the dependent variable itself. This happens automatically with ra: do(cid:374)"t let the i(cid:374)di(cid:448)iduals pi(cid:272)k (cid:449)hat g(cid:396)oups the(cid:455) (cid:449)a(cid:374)t to belong to in the assignment.