心理测量特性

心理测量量特性
  • 文章类型: Review
    背景:创伤后成长量表(PTGI)及其简称(PTGI-SF)是两种用于创伤后成长研究的工具。它们包括一个宗教增长项目,该项目已被证明在不是非常宗教的文化中存在问题。以前的研究已经在其他国家解决了这个问题,但是在西班牙样品中没有注意到这个关键问题。目标:我们的目标是解决西班牙宗教成长项目提出的心理测量问题。方法:为此,我们回顾了在西班牙不同人群中进行的几项研究.结果:西班牙宗教成长项目的得分均值和标准差非常低,以及高偏度和峰度,所有这些都指向地板效果。项目分数显示出较低的项目测试相关性,它未能在因子分析中加载特定的维度,从而对其有效性产生怀疑。结论:该清单在西班牙目前的形式似乎无法正常工作。衡量西班牙宗教增长的项目不恰当可能是由于文化原因。我们建议使用PTGI扩展版本(PTGI-X)代替PTGI,并探索PTGI-SF中宗教增长项目可能替代的替代项目。在这两种情况下,确定西班牙分数的心理测量特性将是必要的。
    在西班牙,PTGI和PTGI-SF中的宗教增长项目显示出严重的心理测量有效性问题。应使用PTGI扩展版本(PTGI-X)代替西班牙的PTGI。对于PTGI-SF,宗教项目需要被替换。
    Background: The Posttraumatic Growth Inventory (PTGI) and its Short Form (PTGI-SF) are two instruments highly used in research on posttraumatic growth. They include a religious growth item that has been demonstrated to be problematic in cultures that are not very religious. Previous research has addressed this issue in other countries, but no attention has been paid to this critical problem in Spanish samples.Objective: Our aim is to address the psychometric issues presented by the religious growth item in Spain.Method: To do so, we reviewed several studies conducted with various populations in Spain.Results: The scores of the religious growth item in Spain present very low means and standard deviations, as well as high skewness and kurtosis, all of which point to a floor effect. The item scores show low item-test correlations, and it has failed to load on a specific dimension in factor analyses, thus casting doubts about its validity.Conclusions: The inventory does not seem to work properly in its current form in Spain. The inappropriateness of the item measuring religious growth in Spain may be due to cultural reasons. We recommend using the PTGI expanded version (PTGI-X) instead of the PTGI and exploring the possible substitution of the religious growth item in the PTGI-SF for an alternative item. In both cases, ascertaining the psychometric properties of the scores in Spain will be necessary.
    The religious growth item in the PTGI and the PTGI-SF show serious psychometric validity issues in Spain. The PTGI Expanded version (PTGI-X) should be used instead of the PTGI in Spain. For the PTGI-SF, the religious item needs to be substituted.
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  • 文章类型: Journal Article
    背景:创伤暴露广泛存在,并与包括创伤后应激障碍在内的慢性身心健康状况有关。然而,我们对非洲创伤暴露的认识和评估可能危及生命的创伤暴露的工具的有效性存在重大差距.目标:DSM-5(LEC-5)的生活事件清单是免费的,广泛使用的问卷来评估可能与精神病理学相关的创伤事件。作为精神病谱系障碍危险因素病例对照研究的一部分,我们使用LEC-5检查南非的创伤事件发生频率并评估问卷的因素结构(N=6,765).方法:通过研究样本中LEC-5的各个项目来测量创伤性事件的发生率,按病例控制状态,和性别。通过将项目分为0、1、2、3和≥4种创伤事件类型来计算累积创伤负担。通过探索性和验证性因素分析评估了LEC-5的心理测量特性。结果:超过92%的研究样本报告经历了≥1个创伤性事件;38.7%报告经历了≥4种创伤性事件类型。最受认可的项目是人身攻击(65.0%),其次是用武器攻击(50.2%)。几乎94%的病例报告≥1例创伤性事件,而对照组为90.5%(p<.001),94%的男性参与者报告≥1例创伤性事件,而女性参与者为89.5%(p<.001)。探索性因子分析揭示了一个6因素模型。三个模型的验证性因素分析发现,基于南非压力与健康调查的7因素模型是最佳拟合(标准化均方根残差为0.024,均方根误差为0.029,比较拟合指数为0.910)。结论:参与者报告了非常高的创伤事件暴露。LEC-5具有良好的心理测量优先级,足以捕获南非的创伤暴露。
    创伤暴露在这个南非样本中非常普遍,不到8%的参与者报告创伤事件为零。这是南非首次评估LEC-5的因子结构。基于先前的创伤暴露研究,使用7因素模型进行验证性因子分析,南非压力与健康研究(SASH),最适合LEC-5。
    Background: Trauma exposure is widespread and linked to chronic physical and mental health conditions including posttraumatic stress disorder. However, there are major gaps in our knowledge of trauma exposure in Africa and on the validity of instruments to assess potentially life-threatening trauma exposure.Objective: The Life Events Checklist for the DSM-5 (LEC-5) is a free, widely used questionnaire to assess traumatic events that can be associated with psychopathology. As part of a case-control study on risk factors for psychosis spectrum disorders, we used the LEC-5 to examine the frequency of traumatic events and to assess the questionnaire\'s factor structure in South Africa (N = 6,765).Method: The prevalence of traumatic events was measured by individual items on the LEC-5 across the study sample, by case-control status, and by sex. Cumulative trauma burden was calculated by grouping items into 0, 1, 2, 3, and ≥4 traumatic event types. Psychometric properties of the LEC-5 were assessed through exploratory and confirmatory factor analyses.Results: More than 92% of the study sample reported experiencing ≥1 traumatic event; 38.7% reported experiencing ≥4 traumatic event types. The most endorsed item was physical assault (65.0%), followed by assault with a weapon (50.2%). Almost 94% of cases reported ≥1 traumatic event compared to 90.5% of controls (p < .001) and 94% of male participants reported ≥1 traumatic event compared to 89.5% of female participants (p < .001). Exploratory factor analysis revealed a 6-factor model. Confirmatory factor analyses of three models found that a 7-factor model based on the South African Stress and Health survey was the best fit (standardized root mean square residual of 0.024, root mean square error of approximation of 0.029, comparative fit index of 0.910).Conclusion: Participants reported very high exposure to traumatic events. The LEC-5 has good psychometric priorities and is adequate for capturing trauma exposure in South Africa.
    Trauma exposure was extremely prevalent in this South African sample, with less than 8% of participants reporting zero exposure to traumatic events.This was the first time the factor structure of the LEC-5 was assessed in South Africa.A confirmatory factor analysis using a 7-factor model based on a previous study of trauma exposure, the South African Stress and Health study (SASH), was the best fit for the LEC-5.
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