University of Pittsburgh, Pittsburgh, Pennsylvania.
University at Buffalo, The State University of New York.
J Pers Disord. 2021 Aug;35(4):494-512. doi: 10.1521/pedi_2020_34_465. Epub 2020 Feb 10.
Using multilevel structural equation modeling, the authors examined within- and between-person predictors of daily impulsivity, with a particular focus on testing a cascade model of affect and daily stress in a 100-day daily diary study of 101 psychiatric patients with personality disorder diagnoses. On average (i.e., fixed effect), within-person increases in daily stress were associated with increased daily impulsivity, both independently and as accounted for by positive associations with increased negative and positive affect. Higher Personality Inventory for (PID-5) Impulsivity scores were associated with amplified within-person links between impulsivity and daily stress and negative affect, but not the links between daily stress and either positive or negative affect. The results of this cascade model are consistent with the hypothesized links between daily affect and stress and daily impulsivity while providing further evidence for the validity of the PID-5 Impulsivity scale and its ability to predict daily impulsivity above and beyond fluctuations in affect and stress.
使用多层次结构方程模型，作者研究了个体内和个体间的冲动性预测因素，特别关注在一项为期 100 天的日常日记研究中，对 101 名人格障碍诊断的精神科患者进行的情感和日常压力的级联模型的测试。平均而言（即固定效应），个体内日常压力的增加与日常冲动性的增加有关，这既与积极的关联有关，也与积极和消极影响的增加有关。较高的人格障碍检查表（PID-5）冲动性得分与冲动性和日常压力以及消极影响之间的个体内联系增强有关，但与日常压力与积极或消极影响之间的联系无关。该级联模型的结果与每日情感和压力与日常冲动之间的假设联系一致，同时为 PID-5 冲动量表的有效性及其能够预测日常冲动提供了进一步的证据，而不仅仅是情感和压力波动。
