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This paper studies the asymptotic distributions of three reliability coefficient estimates: Sample coefficient alpha, the reliability estimate of a composite score following a factor analysis, and the estimate of the maximal reliability of a linear combination of item scores following a factor analysis. Results indicate that the asymptotic distribution for each of the coefficient estimates, obtained based on a normal sampling distribution, is still valid within a large class of nonnormal distributions. Therefore, a formula for calculating the standard error of the sample coefficient alpha, recently obtained by van Zyl, Neudecker and Nel, applies to other reliability coefficients and can still be used even with skewed and kurtotic data such as are typical in the social and behavioral sciences.This research was supported by grants DA01070 and DA00017 from the National Institute on Drug Abuse and a University of North Texas faculty research grant. We would like to thank the Associate Editor and two reviewers for suggestions that helped to improve the paper. 相似文献
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Jimmy Alfonso Licon 《Ratio》2019,32(2):93-103
Intractable disagreement among philosophers is ubiquitous. An implication of such disagreement is that many philosophers hold false philosophical beliefs (i.e. at most only one party to a dispute can be right). Suppose that we distribute philosophers along a spectrum arranged from philosophers with mostly true philosophical beliefs on one end (high‐reliability), to those with mostly false philosophical beliefs on the other (low‐reliability), and everyone else somewhere in‐between (call this is the reliability spectrum). It is hard to see how philosophers could accurately locate themselves on the reliability spectrum; they are prima facie as well positioned as their peers with respect to philosophical matters (call this the placement problem). In this paper, I argue that the reliability spectrum and placement problem lend support to modest meta‐philosophical skepticism: we have a pro tanto (but not an all‐things‐considered) reason to withhold ascent to philosophical claims. 相似文献
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Multiple‐choice tests are frequently used in personnel selection contexts to measure knowledge and abilities. Option weighting is an alternative multiple‐choice scoring procedure that awards partial credit for incomplete knowledge reflected in applicants’ distractor choices. We investigated whether option weights should be based on expert judgment or on empirical data when trying to outperform conventional number‐right scoring in terms of reliability and validity. To obtain generalizable results, we used repeated random sub‐sampling validation and found that empirical option weighting, but not expert option weighting, increased the reliability of a knowledge test. Neither option weighting procedure improved test validity. We recommend to improve the reliability of existing ability and knowledge tests used for personnel selection by computing and publishing empirical option weights. 相似文献
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Mehrdad Kazemzadeh Atoofi Yahya Turan Leila Behnam 《Mental health, religion & culture》2019,22(10):1011-1020
ABSTRACTThe aim of this study was to investigate the validation of the Multidimensional Inventory for Religious Spiritual Well-Being (MI RSWB 48) in a convenience sample of 250 Iranian psychiatric outpatients. In addition to the MI RSWB 48, the patients completed the Spiritual Well-Being Scale (SWS), the WHO-5, the PHQ-9, and the PHQ-15. Cronbach’s α for the MI RSWB 48 was .84, and for its subscales ranged from .33 (Hope Transcendent [HT] Subscale) to .89 (General Religiosity [GR] Subscale). The SWS score had the highest positive correlation with the MI RSWB 48 score. Two factors identified for the scale. The religiosity spirituality score of female patients was significantly higher than the score of the male patients. The MI RSWB 48 can be considered as a suitable tool for evaluating different aspects of religiosity and spirituality in Iranian society. The HT Subscale may need modification to improve its internal consistency. 相似文献
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心理学实验首先必须保证结果的有效性和可靠性。实验素材容量是影响实验结果的关键因素之一。本文的目的是通过运用多元概化理论分析几个典型认知行为实验的素材容量对实验结果精度的影响, 从而探讨最佳的实验素材容量的确定问题。研究结果发现, 在IAT测验上, 相容与不相容任务的素材容量为50时最佳, 可靠性指数为0.92; 在图-词干扰范式中, 素材容量以48时为最佳, 可靠性指数为0.95; 对线索提示范式, 50%有效提示中, 有效与无效提示最佳素材容量为35, 可靠性指数是0.97。研究表明, 多元概化理论可以很好地用于确定认知行为实验中素材的最佳容量。 相似文献
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用多元概化理论考察大学生网络成瘾量表在大学生群体中应用的测量学性能。以随机测量模式的概化设计,针对1200名在校大学生进行问卷调查。结果显示双因子结构的相关程度在0.92以上,五因子结构的相关程度均在0.76~0.97间;整体量表的概化系数和可靠性指数均达到了0.94以上,而双因子结构各因子在0.90左右,五因子结构各因子均在0.74~0.85间。所以,整体量表及各因子在大学生群体中应用的信效度较高,可用作常模和标准参照测验;无论双因子还是五因子结构,CIAS-R各因子在分值比和项目数上,设计非常合理和完善。 相似文献
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Reza Afhami Shahin Mohammadi-Zarghan Mohammad Atari 《Mental health, religion & culture》2017,20(9):879-887
ABSTRACTThe present research aimed to examine the psychometric properties of the Self-Rating of Religiosity (SRR) in Iran. In addition, the associations between the Persian version of this single-item measure of religiosity and the Big Five personality dimensions were investigated. Study 1 (n?=?51) suggested that the Persian translation of the SRR had adequate test-retest reliability over a three-week period. Study 2 (n?=?228) provided evidence for good convergent validity of the SRR, indexed by strong positive associations with scores on the Duke University Religion Index (DUREL). The Big Five dimensions of personality were measured using the Ten-Item Personality Inventory (TIPI). Moreover, the scores on the SRR were positively associated with Agreeableness (r?=?.23, p?<?.01) and Conscientiousness (r?=?.16, p?<?.05), while negatively associated with Openness to Experience (r?=??.25, p?<?.01). These findings are in line with cross-cultural findings on personality correlates of intrinsic religiosity. Limitations and future directions are discussed. 相似文献