APA 2180 Lecture Notes - Lecture 3: Well-Founded Relation, Internal Validity, Nomothetic
17 Feb 2017
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A research design provides a framework for the collection and analysis of data. Choice of research design reflects decisions about priorities given to the dimension of the research process: a research method is simply a technique for collecting data. Choice of research method reflects decisions about the type of instruments or techniques to be used: the t(cid:455)pe of (cid:396)esea(cid:396)(cid:272)h desig(cid:374) (cid:272)hose(cid:374) depe(cid:374)ds o(cid:374) the ki(cid:374)d of e(cid:454)pla(cid:374)atio(cid:374) sought, nomothetic. Cause a(cid:374)d effe(cid:272)t: no(cid:373)otheti(cid:272) e(cid:454)pla(cid:374)atio(cid:374, th(cid:396)ee (cid:272)(cid:396)ite(cid:396)ial of (cid:272)ausatio(cid:374, correlation, time order, non-spuriousness. Produce a rich description of the person/group studied: not appli(cid:272)a(cid:271)le to othe(cid:396) groups, idiog(cid:396)aphi(cid:272) e(cid:454)pla(cid:374)atio(cid:374) based on empathetic understanding, sele(cid:272)t (cid:373)ethod of data collection, questio(cid:374)(cid:374)ai(cid:396)e, i(cid:374)te(cid:396)(cid:448)ie(cid:449), participant observation. Types of research design: experimental, cross-sectional, longitudinal, case study. Field experiments are conducted in real-life surroundings: laboratory experiments take place in artificial environments, co(cid:374)t(cid:396)ols (cid:396)esea(cid:396)(cid:272)h e(cid:374)(cid:448)i(cid:396)o(cid:374)(cid:373)e(cid:374)t, easie(cid:396) to (cid:396)a(cid:374)do(cid:373)l(cid:455) assig(cid:374) (cid:396)esea(cid:396)(cid:272)h su(cid:271)je(cid:272)ts; the(cid:396)efo(cid:396)e, e(cid:374)ha(cid:374)(cid:272)ed i(cid:374)te(cid:396)(cid:374)al (cid:448)alidit(cid:455, easie(cid:396) to (cid:396)epli(cid:272)ate, ho(cid:449)e(cid:448)e(cid:396), (cid:449)eak e(cid:454)te(cid:396)(cid:374)al (cid:448)alidity.
