The current study analyzed the effects of positive versus negative self-talk on physical performance in soccer players from a multiprocess approach. We operationalized the process distinction using the need-for-cognition (NC) construct. Thus, NC was measured and self-talk (i.e., positive vs. negative) was manipulated between participants (i.e., 126 soccer players, age 18 years or older, who were competing in national, regional, or local competitions). Physical performance was assessed by a vertical-jump test. According to hypothesis, regression analyses indicated that positive versus negative self-talk influenced physical performance to a greater extent for high-NC individuals than for low-NC individuals. Specifically, among high-NC soccer players, relative to baseline, positive self-talk produced greater physical performance in the vertical-jump test than negative self-talk. In contrast, among low-NC soccer players, no difference was found between positive and negative self-talk on physical performance. These results supported the moderating role of NC.

目前的研究通过多过程方法分析了积极与消极的自言自语对足球运动员身体表现的影响。我们使用认知需求（NC）构造来操作过程区分。因此，NC 被测量，并且参与者（即 126 名年龄在 18 岁或以上、参加国家、地区或地方比赛的足球运动员）之间的自言自语（即积极与消极）被操纵。通过垂直跳跃测试评估身体表现。根据假设，回归分析表明，与低 NC 个体相比，积极与消极的自言自语对高 NC 个体的身体表现的影响更大。具体来说，在高 NC 足球运动员中，相对于基线，积极的自言自语在垂直跳跃测试中比消极的自言自语产生了更好的身体表现。相比之下，在低NC足球运动员中，积极和消极的自言自语对身体表现没有影响。这些结果支持了 NC 的调节作用。