Expanding the theory of planned behavior (TPB) model with non-volitional factors, this study investigated determinants of purchase intention (PI) for probability-type items (PTI) in a popular mobile game. An online survey was conducted with 534 players of Summoners War. The overall results show that the PI of PTI is associated with both rational and impulsive factors. Specifically, the results of hierarchical regression analysis demonstrate that along with two TPB elements (attitude and perceived control), individual factors of self-control and general stress, as well as game-related factors of advancement, competition, purchase frequency and spending amount were all significant predictors of PTI PI. These non-volitional factors account for additional 18% of variance out of 48% total variance (R² = .48) in PI.

中文翻译：

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理性还是非理性的决定？检验玩家购买可能性类型物品的意图

本研究扩展了具有非自愿性因素的计划行为（TPB）模型的理论，研究了流行手机游戏中概率类型物品（PTI）的购买意愿（PI）的决定因素。对534名召唤者战争进行了在线调查。总体结果表明，PTI的PI与理性因素和冲动因素都相关。具体而言，分层回归分析的结果表明，与两个TPB要素（态度和知觉控制）一起，自我控制和总体压力的个体因素以及与游戏相关的进步，竞争，购买频率和支出金额等因素都是PTI PI的所有重要预测指标。在48％的总方差中，这些非意志因素占方差的18％（R ² = 0.48）。