Group Problem Solving by Laughlin Patrick R

Author:Laughlin, Patrick R.
Language: eng
Format: epub
Publisher: Princeton University Press

Figure 5.9. Proportion of Correct Hypotheses (Laughlin 1992)

These results demonstrate the value of further evidence from other individuals in improving performance in collective induction. Just as performance improved with increasing arrays of evidence selected by the group (Laughlin, VanderStoep, and Hollingshead 1991), performance also improved with increasing arrays of evidence selected by other individuals. In contrast, additional hypotheses from other individuals had less effect, just as multiple hypotheses did not increase the number of correct hypotheses in the experiment of Laughlin, Bonner, and Altermatt (1998). The groups profited from further evidence but not from further hypotheses.

These two experiments also assessed group influence on the individual and individual influence on the group. Let the single correct hypothesis be C, different plausible hypotheses be A, B, D, and E, and different nonplausible hypotheses be F, G, H, and I. On each trial t and subsequent trial t + 1 the individual and the group propose a hypothesis. Represent these four hypotheses by a pattern of four left-to-right letters: the first letter is the individual hypothesis on trial t, the second letter is the individual hypothesis on trial t + 1, the third letter is the group hypothesis on trial t, and the fourth letter is the group hypothesis on trial t + 1. Code the plausible hypotheses in the order A, B, D, E as necessary and reset them in this order for each new trial t. Likewise, code the nonplausible hypotheses in the order F, G, H, I as necessary and reset them in this order for each new trial t (Laughlin 1992, p. 451).

Download

Copyright Disclaimer:
This site does not store any files on its server. We only index and link to content provided by other sites. Please contact the content providers to delete copyright contents if any and email us, we'll remove relevant links or contents immediately.