While affect is frequently measured with experience sampling methodology (ESM), the affective structure at the between- and within-person level has not been thoroughly investigated. We investigated the affective structure at the between- and within-person level, its invariance across different ESM protocols, and its reliability. Participants (N = 147) were randomly assigned to receive either a 30 or 60 item questionnaire three, six, or nine times per day, resulting in 72–75 participants per questionnaire length and 48–50 participants per sampling frequency. Momentary affect was assessed with 8 or 18 items. At both levels, a structure with two correlated factors showed the best fit compared to an orthogonal and a unidimensional model. A structure with additional freed residual correlations was invariant across protocols at the within-person level and showed high reliability. We observed indications of a more discrete affective structure within than between persons.

虽然经常使用经验抽样方法（ESM）来衡量情感，但是尚未深入研究人与人之间的情感结构。我们研究了人与人之间的情感结构，不同ESM协议之间的情感不变性及其可靠性。参与者（N = 147）被随机分配为每天接受3、6或9次30或60项问卷，每份问卷长度为72–75名参与者，每采样频率为48–50名参与者。瞬间影响评估为8或18个项目。与正交模型和一维模型相比，在两个级别上，具有两个相关因子的结构显示出最佳拟合。在人内层面上，具有附加释放残差相关性的结构在协议之间是不变的，并显示出很高的可靠性。我们观察到比人与人之间情感结构更离散的迹象。