SOCI 220 Lecture Notes - Lecture 6: Confounding, Pearson Product-Moment Correlation Coefficient, Purebasic

• School: Texas A&M University
• Department: Sociology
• Course: SOCI 220
• Professor: Judith Linneman

Document Summary

I(cid:374)terve(cid:374)i(cid:374)g varia(cid:271)le = to (cid:272)o(cid:373)e i(cid:374) (cid:271)et(cid:449)ee(cid:374) the flo(cid:449) of (cid:272)ausatio(cid:374) Might not have to work/more time: lurking variable. Unless you know about it or see it, you (cid:449)o(cid:374)"t know it"s there. Possi(cid:271)ilit(cid:455) of this (cid:448)a(cid:396)ia(cid:271)le p(cid:396)o(cid:448)es (cid:272)o(cid:396)(cid:396)elatio(cid:374) does(cid:374)"t al(cid:449)a(cid:455)s (cid:373)ea(cid:374) (cid:272)ausatio(cid:374: spurious relationship. Means false relationship: ruling out all other causes, showing non-spuriousness, using control variable to test for spuriousness, lurking: income ses. Low income: i(cid:374) o(cid:396)de(cid:396) fo(cid:396) it to (cid:271)e a (cid:272)o(cid:374)t(cid:396)ol, do(cid:374)"t let it (cid:448)a(cid:396)(cid:455, does suspected spurious relationship still exist in separate income groups, with control variable in place. Then it was not spurious (not caused by that particular lurking variable. Research for the sake of knowledge only. Do(cid:374)"t k(cid:374)o(cid:449) ho(cid:449) it (cid:272)ould (cid:271)e used just (cid:455)et: 2. When there is a problem, or need and researchers work to solve problem. Which do universities play special role in: pure/basic research because universities are not for profit, so they are free to study for knowledge only.