SOAN 2120 Lecture Notes - Lecture 14: Olive Garden, Dependent And Independent Variables, Internal Validity

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

Document Summary

Random assignment or even matched pair assignment is not always practical. Non- equivalent control group design (field experiments) New teaching techniques (unlikely that classes will split up for purpose of experimentation) Aside fro(cid:373) the a(cid:271)se(cid:374)(cid:272)e of ra(cid:374)do(cid:373) assig(cid:374)(cid:373)e(cid:374)t, these desig(cid:374)s (cid:862)look(cid:863) (cid:373)u(cid:272)h like a regular experiment: o1 x o2, o3 o4. Problem: no control group, no pre test because they did(cid:374)"t k(cid:374)o(cid:449) x (cid:449)as (cid:272)o(cid:373)i(cid:374)g. O2: 2 groups, one gets x, one does not, no random a ignment (cid:894)(cid:374)o r"s(cid:895, participants either selected the group or were selected for the group, selection bias!!!!!, example: cross-sectional survey research. Survey research: behaviour, attitudes/ beliefs/ opinions, sociodemographic characteristics. Standard response options (variables: mutually exclusive and exhaustive (there is one category for everyone, clear and unambiguous. External (how will it apply to the real world) Fa(cid:272)e (cid:894)usuall(cid:455) spe(cid:272)ifi(cid:272) to sur(cid:448)e(cid:455) resear(cid:272)h, (cid:862)o(cid:374) the face of it, is it measuring.