Department of Psychology, Mississippi State University, PO Box 6161, Mississippi State, MS 39762, USA.
J Affect Disord. 2014 Jan;152-154:193-201. doi: 10.1016/j.jad.2013.09.010. Epub 2013 Sep 18.
Anhedonia, or loss of pleasure and/or interest in people or things, is a key component of many forms of psychopathology. Extant anhedonia measures only assess current state or longstanding trait anhedonia, which risks discounting recent changes. Thus, we created the Specific Loss of Interest and Pleasure Scale (SLIPS), to assess recent changes in anhedonia.
Four studies assessed the reliability and validity of the SLIPS through factor and internal consistency analyses, convergent and divergent validity analyses, and incremental validity analyses in individuals reporting non-clinical and clinical levels of psychopathology.
The SLIPS was internally consistent, converged with existing state measures of anhedonia and depression, and diverged from general measures of affect and trait anticipatory and consummatory pleasure. Furthermore, the SLIPS predicted recent changes in anhedonia independent of existing measures. Moreover, in respondents reporting moderate or severe symptoms of depression, only the SLIPS was associated with recent changes in anhedonia.
Prospective limitations included a resulting one factor solution and the potential that the method of scaling influenced results. However, these limitations were offset by empirical verification and the unique strength of the scaling of the SLIPS.
The SLIPS is the first validated measure that allows for the assessment of recent changes in anhedonia in non-clinical and clinical samples. Results suggest that the SLIPS offers unique clinical utility by discriminating changes in anhedonia within at-risk and clinically depressed groups.
快感缺失，或对人和事物失去乐趣和/或兴趣，是许多形式的精神病理学的一个关键组成部分。现有的快感缺失测量方法仅评估当前状态或长期的特质性快感缺失，这可能会忽略最近的变化。因此，我们创建了特定的兴趣和快感缺失量表（SLIPS），以评估快感缺失的近期变化。
四项研究通过因子分析和内部一致性分析、收敛和发散有效性分析以及在报告非临床和临床水平精神病理学的个体中进行的增量有效性分析，评估了 SLIPS 的可靠性和有效性。
SLIPS 具有内部一致性，与现有的快感缺失和抑郁状态测量方法相吻合，与一般的情感和特质性预期和满足性快感测量方法相分离。此外，SLIPS 预测了快感缺失的近期变化，独立于现有的测量方法。此外，在报告有中度或重度抑郁症状的受访者中，只有 SLIPS 与快感缺失的近期变化有关。
前瞻性的局限性包括单一因素解决方案和可能影响结果的量表方法。然而，这些局限性被实证验证和 SLIPS 独特的量表方法所抵消。
SLIPS 是第一个允许在非临床和临床样本中评估快感缺失近期变化的经过验证的测量方法。结果表明，SLIPS 通过区分处于风险中的和临床抑郁群体中快感缺失的变化，提供了独特的临床实用性。
