| Sumario: | The effects of three task-solving strategies on group efficiency and effectiveness were studied. Sixty soldiers worked in dyads under a shared labor strategy or one of two divided labor strategies. Tasks included a difficult and an easy crossword puzzle. On the average, dividing labor resulted in greater efficiency (amount of work per man hour) while requiring subjects to work together resulted in substantially greater group effectiveness (total performance), but this effect occurred primarily on the easy task. It was suggested that a high degree of member interdependence maximizes redundancy of task-relevant abilities, resulting in generally superior performance effectiveness but frequently at the cost of efficiency.
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