Intrinsic Motivation Inventory: An Adapted Measure for Schizophrenia Research
Intrinsic Motivation Inventory: An Adapted Measure for Schizophrenia Research
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DOI：
10.1093/schbul/sbp030
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发表时间：
2010-09-01
影响因子：
6.6
通讯作者：
Medalia, Alice
中科院分区：
文献类型：
--
作者：
Choi, Jimmy;Mogami, Tamiko;Medalia, Alice
本文介绍了心理测量学验证的量表，旨在衡量内在动机（IM）的精神分裂症。最近的研究强调了精神分裂症的动机和功能结果之间的关系，并确定IM作为神经认知和心理社会结果之间的重要中介因素。因此，必须有有效的措施，IM经验使用。为此，我们验证了自我报告IM量表，该量表测量了自我决定论理论确定的与认知任务参与、技能获取、治疗依从性和补救结果相关的中央动机结构。参与者是参与认知补救研究的精神分裂症门诊患者（n = 58），临床稳定的精神分裂症门诊患者（n = 15）的便利子样本，以及一组健康正常人（n = 22）。精神分裂症研究的内在动机量表（IMI-SR）是一个简洁的工具，具有良好的内部一致性（α = .92）和重测信度（组内相关= .77）。数据进行分析，以缩短原来的54个项目到最终的21个项目的问卷调查，包括3个领域相关的治疗动机（兴趣/享受，感知选择，价值/有用性）。该量表与健康相关行为的动机密切相关，包括尝试具有挑战性的任务和自主治疗参与的感知能力。重要的是，该量表能够区分认知任务和实际学习练习的改善者和非改善者，描绘高与低的治疗出勤率，并表现出对干预变化引起的动机变化的敏感性。IMI-SR是一个可行的工具，以衡量IM精神分裂症的认知补救方案或心理康复计划的一部分。
This article describes the psychometric validation of a scale designed to measure intrinsic motivation (IM) in schizophrenia. Recent studies have highlighted the relationship between motivation and functional outcome in schizophrenia and identified IM as an important mediating factor between neurocognition and psychosocial outcome. It therefore becomes imperative to have validated measures of IM for empirical use. To that end, we validated a self-report IM scale that gauges the central motivational structures identified by Self-determinism Theory as pertinent to cognitive task engagement, skill acquisition, treatment compliance, and remediation outcome. Participants were schizophrenia outpatients involved in a cognitive remediation study (n = 58), a convenience subsample of clinically stable schizophrenia outpatients (n = 15), and a group of healthy normals (n = 22). The Intrinsic Motivation Inventory for Schizophrenia Research (IMI-SR) is a concise instrument, possessing good internal consistency (alpha = .92) and test-retest reliability (intraclass correlation = .77). Data were analyzed to abridge the original 54 items into a final 21-item questionnaire comprised of 3 domains relevant to motivation for treatments (interest/enjoyment, perceived choice, value/usefulness). The scale was highly associated with germane constructs of motivation for health-related behaviors, including perceived competency for attempting challenging tasks and autonomous treatment engagement. Importantly, the scale was able to distinguish improvers and nonimprovers on a cognitive task and actual learning exercises, delineate high vs low treatment attendance, and demonstrate sensitivity to motivational changes due to intervention variation. The IMI-SR is a viable instrument to measure IM in schizophrenia as part of a cognitive remediation protocol or psychosocial rehabilitation program.