他们对36个健康青少年被试者进行随机分组，让他们分别接受旨在正向操控或负向操控的训练。

Thirty-six healthy teenagers participated in the study, and were randomly grouped to receive training designed to manipulate positive readings of scenarios or negative readings.

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女性健康者中，三种尺骨变异的发生率为：正向变异47.4%，中性变异40.6%，负向变异12.0%。

Among the female volunteers, the incidence of ulnar variance were: 47.4% positive, 40.6% neutral, and 12.0% negative.

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正向有时对促使孩子在学习上更加努力是有效的，但其负面影响是随之而来的不健康的“内部压力”感觉。

The positive kind sometimes succeeded in getting children to work harder on academic tasks, but at the cost of unhealthy feelings of "internal compulsion."

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