The Environmental Reward Observation Scale (EROS): Development, validity, and reliability
The Environmental Reward Observation Scale (EROS): Development, validity, and reliability
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DOI：
10.1016/j.beth.2006.05.003
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发表时间：
2007-06-01
期刊：
影响因子：
3.7
通讯作者：
Hopko, Derek R.
中科院分区：
文献类型：
--
作者：
Armento, Maria E. A.;Hopko, Derek R.
研究人员承认，环境奖励的频率和持续时间与情感情绪状态之间存在密切联系，特别是与抑郁症的病因，评估和治疗有关。鉴于行为理论，概述环境奖励作为一个强有力的中介影响和不提供一个有效的，可靠的，有效的自我报告措施的环境奖励，我们开发了环境奖励观察量表（EROS），并检查其心理测量特性。在实验一中，探索性因素分析支持了一个单维度的10个项目的测量具有较强的内部一致性和重测信度。当管理到一个重复的样本，验证性因素分析表明一个很好的适合1-因素模型和收敛/判别效度数据支持的EROS的结构效度。在实验2中，通过与愉快事件表（PES; MacPhillamy & Lewinsohn，1976）的中度相关，进一步支持了EROS的收敛效度。在实验3中，分层回归支持的生态有效性EROS对预测日常日记报告的时间花在高回报的行为和活动。在抑郁症状（BDI）解释的方差之外，EROS在解释低奖励和高奖励行为所花费的时间时与显著的增量方差相关。EROS可能代表了一个简短的，可靠的和有效的环境奖励措施，可以改善心理评估的负面情绪状态，如临床抑郁症。
Researchers acknowledge a strong association between the frequency and duration of environmental reward and affective mood states, particularly in relation to the etiology, assessment, and treatment of depression. Given behavioral theories that outline environmental reward as a strong mediator of affect and the unavailability of an efficient, reliable, and valid self-report measure of environmental reward, we developed the Environmental Reward Observation Scale (EROS) and examined its psychometric properties. In Experiment 1, exploratory factor analysis supported a unidimensional 10-item measure with strong internal consistency and test-retest reliability. When administered to a replication sample, confirmatory factor analysis suggested an excellent fit to the 1-factor model and convergent/discriminant validity data supported the construct validity of the EROS. In Experiment 2, further support for the convergent validity of the EROS was obtained via moderate correlations with the Pleasant Events Schedule (PES; MacPhillamy & Lewinsohn, 1976). In Experiment 3, hierarchical regression supported the ecological validity of the EROS toward predicting daily diary reports of time spent in highly rewarding behaviors and activities. Above and beyond variance accounted for by depressive symptoms (BDI), the EROS was associated with significant incremental variance in accounting for time spent in both low and high reward behaviors. The EROS may represent a brief, reliable and valid measure of environmental reward that may improve the psychological assessment of negative mood states such as clinical depression.