CMST 332 Chapter Notes - Chapter 7: Treatment And Control Groups, Demand Characteristics
4 Nov 2016
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Occ. when researcher intentionally varies/changes how the independent variable is presented to partic. Occ. in quasi-experimental forms; not in descriptive forms. Control groups: baseline for comparison for the experiment. Experimental groups: ea. group receives diff. treatment/level of variable, absent from quasi-experimental/descriptive forms. The experimental framework: experiment: recording of measurements/observations made by defined procedures/in defined conditions, experimental research. Conducted in lab/simulated environ. controlled by researchers. Chosen when researchers wants to : determ. causation, time ordering, covariation, elim. Explore specific conditions under which a phenomenon occurs. Est. /explain what caused a perso(cid:374)"s behav. /feelings/attitude to change. Must satisfy certain charac: temporal component w/one element occ. b4 anoth, comparisons between at least 2 groups, conducted w/in a lim. Frame w/interaction under control/ observation of researcher: lab experiments. Researcher structures environ. where data is collected. Physically isolates research process from day-to-day/routine interaction of partic. The classical experiment: classical experiment: researcher controls treatment/manipulation of independent variable by randomly assigning partic. to treatment/control groups.
