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Problem solvers often need to choose between adapting a current solution andexchanging it for a new one. How do such decisions depend on structural andsurface features of the task? The present study investigated the interplaybetween the costs of the two solutions (a structural feature) and the format inwhich this information was presented (a surface feature). In a computer-basedmodular plant scenario, participants chose between process parametermodifications (Adapt) and reconfigurations of the module setup (Exchange).Solution costs were presented either as graphs depicting parameter relations,separate numbers for each parameter, or integrated numbers for each solution.It was hypothesised that graphs induce satisficing (i.e., basing decisions onlyon Adapt), whereas the numeric formats foster a comparison of the solutions(i.e., basing decisions on the Adapt/Exchange ratio). The hypothesised effectswere restricted to situations with medium Adapt costs. A second experimentreplicated these findings while adjusting the scale of numeric formats. Weconclude that Adapt/Exchange decisions are shaped by an interaction ofstructural and surface features.

Adapt/Exchange decisions depend on structural and surface features: Effects of solution costs and presentation format