PSYC 201W Chapter 12: Single-Case Experimental Designs
28 Nov 2017
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Single-case experimental designs: allow researchers to systematically examine how an independent variable influences the behaviour of an individual case. Single-case experimental designs may also be called single-case experimental designs, single- case designs, single-subject designs, single-participant designs, n = 1 designs, or small n designs. Often (but not always) involve one individual. These designs allow researchers to draw causal conclusions about how an iv influences each participant or social unit. Participants serve as their own control or comparison. Treatment phase: involves the presentation of a specific treatment or other intervention (the experimental condition) Baseline phase: the treatment is not presented. Dependent variable is measured across multiple trials or sessions within each condition of the experiment. Data are examined separately for each participant. In group designs, all the data is examined as a combined value. Visual analysis of the data may be the sole basis for judging whether the iv produced an effect.
