https://scholars.lib.ntu.edu.tw/handle/123456789/40195
標題: | 項目滿意度之重要性加權:以生活品質測量為例 The role of importance weighting on Quality of life measurement:Do we need to weight item satisfaction by item importance? |
作者: | 吳佳煇 Wu, Chia-huei |
關鍵字: | 重要度;生活品質;測驗;加權;滿意度;quality of life;importance;measurement;Weighting;satisfaction | 公開日期: | 2005 | 摘要: | 在生活品質研究中,許多生活品質測驗在計算個人的生活品質分數時,採用重要度加權的方法,將個人在各項目所評量的滿意度分數與重要度分數相乘,得出重要性加權的生活滿意度分數,並依此作為個人生活品質的指標。然而,根據Locke的情感間距假設(range-of-affect hypothesis, 1969, 1976),當個人在進行項目滿意度評量時,該項目的重要程度已經介入滿意度評量的歷程,而影響滿意度評量的強度。因此,本論文以Locke的情感間距假設為架構,以生活品質測驗為範疇,探討項目滿意度分數之重要度加權的適當性。本論文共有三個次研究,研究一旨在比較未加權滿意度分數與加權後滿意度分數,對整體生活滿意度的預測效果是否有所差異。研究二則以問卷調查法檢驗Locke的假設,了解在生活品質測量中,項目重要度是否影響項目滿意度的強度。研究三則是採用情境故事的實驗法,檢驗Locke的假設。研究結果發現,加權分數與未加權分數對整體生活滿意的預測效果並無顯著差異,且項目滿意度對於整體生活滿意度的預測力,並不會因為項目的重要程度而有所差異,顯示重要度加權無助於整體生活滿意度的預測。此外,研究結果也發現項目重要度對項目滿意度的強度具有影響力,顯示項目滿意度評量已涵蓋項目重要度的訊息。因此,本研究認為項目滿意度之重要性加權並不是一個有效且必要的計分程序。 ‘Importance weighting’ is a common idea in quality of life (QOL) measurement. Based on the common idea that important domains should have more contribution to individuals’ QOL total score, the weighting procedure of multiplying item satisfaction by item importance was adopted in many QOL instruments. However, in Locke’s (1969, 1976) range-of-affect hypothesis, he indicated that the satisfaction evaluation of an item was determined by the have-want discrepancy, importance and their interaction (discrepancy × importance) of the item, implying that item satisfaction has incorporated the judgment of item importance and weighting item satisfaction score with item importance score is redundant. Several studies on job satisfaction have supported Locke’s range-of-affect hypothesis, however, the range-of-affect hypothesis has not been examined in the QOL research, and the conclusion derived from the hypothesis might not be directly applied to QOL research. Therefore, the purpose of this thesis was to address the issue of importance weighting by examining Locke’s hypothesis in the context of QOL research. Three studies were conducted to address this issue. In order to understand the empirical effect of importance weighting, in the first study, several weighting algorithms proposed by different scholars were adopted to investigate whether the weighted satisfaction scores would have better prediction on a criterion variable (a global life satisfaction measure) than the unweighted satisfaction scores. Further, the second study was conducted to examine the range-of-affect hypothesis by a survey study for testing the hypothesis in the interpersonal context. In this study, moderated regression analysis was conducted to test whether the association between item discrepancy and item satisfaction was stronger among people regard the item as higher importance than people regard the item as lower importance. Finally, in the third study, a within-subject experiment was conducted to test the range-of-affect hypothesis in an intra-personal context. This study aimed to show that given the amount of discrepancy, people would have stronger satisfaction/dissatisfaction on a higher important life aspect than a lower important aspect. Generally, the results of the three studies were consistent with the previous studies on job satisfaction, revealing that (1) weighing item satisfaction with item importance did not contribute to predicting a criterion variable and (2) item satisfaction has incorporated the judgment of item importance. Based on these results, the procedure of importance weighting is unnecessary. In addition to this point, several points derived from the issue of importance weighting were also discussed, such as the value of importance rating on QOL measurement, psychological mechanism on satisfaction response, the relationships between domain satisfaction and global satisfaction and the implications on QOL promotion. From these discussions, it is obvious that QOL research is a board field that related to various issues. Moreover, for thoroughly understanding individuals’ QOL, there are many issues that remained to be further explored. |
URI: | http://ntur.lib.ntu.edu.tw//handle/246246/55944 | 其他識別: | en-US |
顯示於: | 心理學系 |
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ntu-94-R92227004-1.pdf | 23.53 kB | Adobe PDF | 檢視/開啟 |
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