Psychometric properties of performance-based measurements of functional capacity: test-retest reliability, practice effects, and potential sensitivity to change.
Psychometric properties of performance-based measurements of functional capacity: test-retest reliability, practice effects, and potential sensitivity to change.
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DOI：
10.1016/j.schres.2010.03.021
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发表时间：
2010-06
影响因子：
4.5
通讯作者：
Harvey, Philip D.
中科院分区：
文献类型：
--
作者：
Leifker, Feea R.;Patterson, Thomas L.;Bowie, Christopher R.;Mausbach, Brent T.;Harvey, Philip D.
基于表现的衡量社交和日常生活技能能力的方法正被更广泛地用于评估患有严重精神疾病（如精神分裂症和双相情感障碍）的人的功能能力。由于它们也被用作针对精神分裂症认知障碍的药理学和认知补救研究的结果指标，因此了解它们的测量特性和对变化的潜在敏感性非常重要。在这项研究中，重测信度，实践效果，和可靠的变化指数的两种不同的性能为基础的功能能力的措施，UCSD基于性能的技能评估（UPSA）和社会技能性能评估（SSPA）在几个不同的重测时间间隔在两个不同的人与精神分裂症（n =238和116）和健康对照样本（n=109）。这些心理测量特性进行了比较的神经心理评估电池。在精神分裂症患者长达36个月的随访期间，长形式UPSA的重测信度范围为r= 0.63至r= 0.80，而简短UPSA的信度范围为r= 0.66至r= 0.81。NP性能分数的重测信度范围为r= 0.77至r= 0.79。在健康对照组中，UPSA的重测可靠性较低，而NP的表现略可靠。中学学位分配的重测信度较低。UPSA的实践效应量范围为0.05至0.16，NP评估的实践效应量范围为0.07至0.19，HC具有更多的实践效应。可靠的变化区间在NP和两种FC测量中是一致的，表明检测变化的潜力相等。与精神分裂症患者的NP表现相比，这些基于表现的功能能力指标似乎具有类似的对变化敏感的潜力。
Performance-based measures of the ability to perform social and everyday living skills are being more widely used to assess functional capacity in people with serious mental illnesses such as schizophrenia and bipolar disorder. Since they are also being used as outcome measures in pharmacological and cognitive remediation studies aimed at cognitive impairments in schizophrenia, understanding their measurement properties and potential sensitivity to change is important. In this study, the test-retest reliability, practice effects, and reliable change indices of two different performance-based functional capacity measures, the UCSD Performance-based skills assessment (UPSA) and Social skills performance assessment (SSPA) were examined over several different retest intervals in two different samples of people with schizophrenia (n’s=238 and 116) and a healthy comparison sample (n=109). These psychometric properties were compared to those of a neuropsychological assessment battery. Test-retest reliabilities of the long form of the UPSA ranged from r=.63 to r=.80 over follow-up periods up to 36 months in people with schizophrenia, while brief UPSA reliabilities ranged from r=.66 to r=.81. Test-retest reliability of the NP performance scores ranged from r=.77 to r=.79. Test-retest reliabilities of the UPSA were lower in healthy controls, while NP performance was slightly more reliable. SSPA test-retest reliability was lower. Practice effect sizes ranged from .05 to .16 for the UPSA and .07 to .19 for the NP assessment in patients, with HC having more practice effects. Reliable change intervals were consistent across NP and both FC measures, indicating equal potential for detection of change. These performance-based measures of functional capacity appear to have similar potential to be sensitive to change compared to NP performance in people with schizophrenia.
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影响因子：
6.6
作者：
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通讯作者：
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影响因子：
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