Educational and Psychological Measurement最新文献

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Historical Measurement Information Can Be Used to Improve Estimation of Structural Parameters in Structural Equation Models With Small Samples. 利用历史测量信息可以改善小样本结构方程模型中结构参数的估计。
IF 2.1 3区 心理学
Educational and Psychological Measurement Pub Date : 2025-06-13 DOI: 10.1177/00131644251330851
James Ohisei Uanhoro, Olushola O Soyoye
{"title":"Historical Measurement Information Can Be Used to Improve Estimation of Structural Parameters in Structural Equation Models With Small Samples.","authors":"James Ohisei Uanhoro, Olushola O Soyoye","doi":"10.1177/00131644251330851","DOIUrl":"10.1177/00131644251330851","url":null,"abstract":"<p><p>This study investigates the incorporation of historical measurement information into structural equation models (SEM) with small samples to enhance the estimation of structural parameters. Given the availability of published factor analysis results with loading estimates and standard errors for popular scales, researchers may use this historical information as informative priors in Bayesian SEM (BSEM). We focus on estimating the correlation between two constructs using BSEM after generating data with significant bias in the Pearson correlation of their sum scores due to measurement error. Our findings indicate that incorporating historical information on measurement parameters as priors can improve the accuracy of correlation estimates, mainly when the true correlation is small-a common scenario in psychological research. Priors derived from meta-analytic estimates were especially effective, providing high accuracy and acceptable coverage. However, when the true correlation is large, weakly informative priors on all parameters yield the best results. These results suggest leveraging historical measurement information in BSEM can enhance structural parameter estimation.</p>","PeriodicalId":11502,"journal":{"name":"Educational and Psychological Measurement","volume":" ","pages":"00131644251330851"},"PeriodicalIF":2.1,"publicationDate":"2025-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12170579/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144324766","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Evaluating the Performance of a Regularized Differential Item Functioning Method for Testlet-Based Polytomous Items. 评估基于测试的多同构项目的正则化微分项目功能方法的性能。
IF 2.1 3区 心理学
Educational and Psychological Measurement Pub Date : 2025-05-31 DOI: 10.1177/00131644251342512
Jing Huang, M David Miller, Anne Corinne Huggins-Manley, Walter L Leite, Herman T Knopf, Albert D Ritzhaupt
{"title":"Evaluating the Performance of a Regularized Differential Item Functioning Method for Testlet-Based Polytomous Items.","authors":"Jing Huang, M David Miller, Anne Corinne Huggins-Manley, Walter L Leite, Herman T Knopf, Albert D Ritzhaupt","doi":"10.1177/00131644251342512","DOIUrl":"10.1177/00131644251342512","url":null,"abstract":"<p><p>This study investigated the effect of testlets on regularization-based differential item functioning (DIF) detection in polytomous items, focusing on the generalized partial credit model with lasso penalization (GPCMlasso) DIF method. Five factors were manipulated: sample size, magnitude of testlet effect, magnitude of DIF, number of DIF items, and type of DIF-inducing covariates. Model performance was evaluated using false-positive rate (FPR) and true-positive rate (TPR). Results showed that the simulation had effective control of FPR across conditions, while the TPR was differentially influenced by the manipulated factors. Generally, the small testlet effect did not noticeably affect the GPCMlasso model's performance regarding FPR and TPR. The findings provide evidence of the effectiveness of the GPCMlasso method for DIF detection in polytomous items when testlets were present. The implications for future research and limitations were also discussed.</p>","PeriodicalId":11502,"journal":{"name":"Educational and Psychological Measurement","volume":" ","pages":"00131644251342512"},"PeriodicalIF":2.1,"publicationDate":"2025-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12126468/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144207999","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Beta-Binomial Model for Count Data: An Application in Estimating Model-Based Oral Reading Fluency. 计数数据的β -二项模型:在评估基于模型的口语阅读流畅性中的应用。
IF 2.1 3区 心理学
Educational and Psychological Measurement Pub Date : 2025-05-30 DOI: 10.1177/00131644251335914
Xin Qiao, Akihito Kamata, Yusuf Kara, Cornelis Potgieter, Joseph F T Nese
{"title":"Beta-Binomial Model for Count Data: An Application in Estimating Model-Based Oral Reading Fluency.","authors":"Xin Qiao, Akihito Kamata, Yusuf Kara, Cornelis Potgieter, Joseph F T Nese","doi":"10.1177/00131644251335914","DOIUrl":"10.1177/00131644251335914","url":null,"abstract":"<p><p>In this article, the beta-binomial model for count data is proposed and demonstrated in terms of its application in the context of oral reading fluency (ORF) assessment, where the number of words read correctly (WRC) is of interest. Existing studies adopted the binomial model for count data in similar assessment scenarios. The beta-binomial model, however, takes into account extra variability in count data that have been neglected by the binomial model. Therefore, it accommodates potential overdispersion in count data compared to the binomial model. To estimate model-based ORF scores, WRC and response times were jointly modeled. The full Bayesian Markov chain Monte Carlo method was adopted for model parameter estimation. A simulation study showed adequate parameter recovery of the beta-binomial model and evaluated the performance of model fit indices in selecting the true data-generating models. Further, an empirical analysis illustrated the application of the proposed model using a dataset from a computerized ORF assessment. The obtained findings were consistent with the simulation study and demonstrated the utility of adopting the beta-binomial model for count-type item responses from assessment data.</p>","PeriodicalId":11502,"journal":{"name":"Educational and Psychological Measurement","volume":" ","pages":"00131644251335914"},"PeriodicalIF":2.1,"publicationDate":"2025-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12125017/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144198554","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Bayesian Thurstonian IRT Modeling: Logical Dependencies as an Accurate Reflection of Thurstone's Law of Comparative Judgment. 贝叶斯瑟斯顿IRT模型:逻辑依赖是瑟斯顿比较判断定律的准确反映。
IF 2.1 3区 心理学
Educational and Psychological Measurement Pub Date : 2025-05-30 DOI: 10.1177/00131644251335586
Hannah Heister, Philipp Doebler, Susanne Frick
{"title":"Bayesian Thurstonian IRT Modeling: Logical Dependencies as an Accurate Reflection of Thurstone's Law of Comparative Judgment.","authors":"Hannah Heister, Philipp Doebler, Susanne Frick","doi":"10.1177/00131644251335586","DOIUrl":"10.1177/00131644251335586","url":null,"abstract":"<p><p>Thurstonian item response theory (Thurstonian IRT) is a well-established approach to latent trait estimation with forced choice data of arbitrary block lengths. In the forced choice format, test takers rank statements within each block. This rank is coded with binary variables. Since each rank is awarded exactly once per block, stochastic dependencies arise, for example, when options A and B have ranks 1 and 3, C must have rank 2 in a block of length 3. Although the original implementation of the Thurstonian IRT model can recover parameters well, it is not completely true to the mathematical model and Thurstone's law of comparative judgment, as impossible binary answer patterns have a positive probability. We refer to this problem as stochastic dependencies and it is due to unconstrained item intercepts. In addition, there are redundant binary comparisons resulting in what we call logical dependencies, for example, if within a block <math><mrow><mi>A</mi> <mo><</mo> <mi>B</mi></mrow> </math> and <math><mrow><mi>B</mi> <mo><</mo> <mi>C</mi></mrow> </math> , then <math><mrow><mi>A</mi> <mo><</mo> <mi>C</mi></mrow> </math> must follow and a binary variable for <math><mrow><mi>A</mi> <mo><</mo> <mi>C</mi></mrow> </math> is not needed. Since current Markov Chain Monte Carlo approaches to Bayesian computation are flexible and at the same time promise correct small sample inference, we investigate an alternative Bayesian implementation of the Thurstonian IRT model considering both stochastic and logical dependencies. We show analytically that the same parameters maximize the posterior likelihood, regardless of the presence or absence of redundant binary comparisons. A comparative simulation reveals a large reduction in computational effort for the alternative implementation, which is due to respecting both dependencies. Therefore, this investigation suggests that when fitting the Thurstonian IRT model, all dependencies should be considered.</p>","PeriodicalId":11502,"journal":{"name":"Educational and Psychological Measurement","volume":" ","pages":"00131644251335586"},"PeriodicalIF":2.1,"publicationDate":"2025-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12125010/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144198553","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Using Biclustering to Detect Cheating in Real Time on Mixed-Format Tests. 用双聚类实时检测混合格式考试作弊。
IF 2.1 3区 心理学
Educational and Psychological Measurement Pub Date : 2025-05-24 DOI: 10.1177/00131644251333143
Hyeryung Lee, Walter P Vispoel
{"title":"Using Biclustering to Detect Cheating in Real Time on Mixed-Format Tests.","authors":"Hyeryung Lee, Walter P Vispoel","doi":"10.1177/00131644251333143","DOIUrl":"10.1177/00131644251333143","url":null,"abstract":"<p><p>We evaluated a real-time biclustering method for detecting cheating on mixed-format assessments that included dichotomous, polytomous, and multi-part items. Biclustering jointly groups examinees and items by identifying subgroups of test takers who exhibit similar response patterns on specific subsets of items. This method's flexibility and minimal assumptions about examinee behavior make it computationally efficient and highly adaptable. To further finetune accuracy and reduce false positives in real-time detection, enhanced statistical significance tests were incorporated into the illustrated algorithms. Two simulation studies were conducted to assess detection across varying testing conditions. In the first study, the method effectively detected cheating on tests composed entirely of either dichotomous or non-dichotomous items. In the second study, we examined tests with varying mixed item formats and again observed strong detection performance. In both studies, detection performance was examined at each timestamp in real time and evaluated under three varying conditions: proportion of cheaters, cheating group size, and proportion of compromised items. Across conditions, the method demonstrated strong computational efficiency, underscoring its suitability for real-time applications. Overall, these results highlight the adaptability, versatility, and effectiveness of biclustering in detecting cheating in real time while maintaining low false-positive rates.</p>","PeriodicalId":11502,"journal":{"name":"Educational and Psychological Measurement","volume":" ","pages":"00131644251333143"},"PeriodicalIF":2.1,"publicationDate":"2025-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12104213/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144156794","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Using Deep Reinforcement Learning to Decide Test Length. 使用深度强化学习来决定测试长度。
IF 2.1 3区 心理学
Educational and Psychological Measurement Pub Date : 2025-05-03 DOI: 10.1177/00131644251332972
James Zoucha, Igor Himelfarb, Nai-En Tang
{"title":"Using Deep Reinforcement Learning to Decide Test Length.","authors":"James Zoucha, Igor Himelfarb, Nai-En Tang","doi":"10.1177/00131644251332972","DOIUrl":"https://doi.org/10.1177/00131644251332972","url":null,"abstract":"<p><p>This study explored the application of deep reinforcement learning (DRL) as an innovative approach to optimize test length. The primary focus was to evaluate whether the current length of the National Board of Chiropractic Examiners Part I Exam is justified. By modeling the problem as a combinatorial optimization task within a Markov Decision Process framework, an algorithm capable of constructing test forms from a finite set of items while adhering to critical structural constraints, such as content representation and item difficulty distribution, was used. The findings reveal that although the DRL algorithm was successful in identifying shorter test forms that maintained comparable ability estimation accuracy, the existing test length of 240 items remains advisable as we found shorter test forms did not maintain structural constraints. Furthermore, the study highlighted the inherent adaptability of DRL to continuously learn about a test-taker's latent abilities and dynamically adjust to their response patterns, making it well-suited for personalized testing environments. This dynamic capability supports real-time decision-making in item selection, improving both efficiency and precision in ability estimation. Future research is encouraged to focus on expanding the item bank and leveraging advanced computational resources to enhance the algorithm's search capacity for shorter, structurally compliant test forms.</p>","PeriodicalId":11502,"journal":{"name":"Educational and Psychological Measurement","volume":" ","pages":"00131644251332972"},"PeriodicalIF":2.1,"publicationDate":"2025-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12049363/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143988676","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Evaluating Change in Adjusted R-Square and R-Square Indices: A Latent Variable Method Application. 评价调整后r方和r方指数的变化:一种潜在变量法的应用。
IF 2.1 3区 心理学
Educational and Psychological Measurement Pub Date : 2025-04-11 DOI: 10.1177/00131644251329178
Tenko Raykov, Christine DiStefano
{"title":"Evaluating Change in Adjusted <i>R</i>-Square and <i>R</i>-Square Indices: A Latent Variable Method Application.","authors":"Tenko Raykov, Christine DiStefano","doi":"10.1177/00131644251329178","DOIUrl":"https://doi.org/10.1177/00131644251329178","url":null,"abstract":"<p><p>A procedure for interval estimation of the difference in the adjusted <i>R</i>-square index for nested linear models is discussed. The method yields as a byproduct confidence intervals for their standard <i>R</i>-square difference, as well as for the adjusted and standard <i>R</i>-squares associated with each model. The resulting interval estimate of the difference in adjusted <i>R</i>-square represents a useful and informative complement to the commonly used <i>R</i>-square change statistic and its significance test in model selection and contains substantially more information than that test. The outlined procedure is readily employed with popular software in empirical educational and psychological studies and is illustrated with numerical data.</p>","PeriodicalId":11502,"journal":{"name":"Educational and Psychological Measurement","volume":" ","pages":"00131644251329178"},"PeriodicalIF":2.1,"publicationDate":"2025-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11993540/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143985479","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Assessing the Performance of Strategies for Handling Rapid Guessing Responses in Item Response Theory Equating. 项目反应理论等价中处理快速猜测反应策略的性能评估。
IF 2.1 3区 心理学
Educational and Psychological Measurement Pub Date : 2025-03-30 DOI: 10.1177/00131644251329524
Juyoung Jung, Won-Chan Lee
{"title":"Assessing the Performance of Strategies for Handling Rapid Guessing Responses in Item Response Theory Equating.","authors":"Juyoung Jung, Won-Chan Lee","doi":"10.1177/00131644251329524","DOIUrl":"10.1177/00131644251329524","url":null,"abstract":"<p><p>This study assesses the performance of strategies for handling rapid guessing responses (RGs) within the context of item response theory observed-score equating. Four distinct approaches were evaluated: (1) ignoring RGs, (2) penalizing RGs as incorrect responses, (3) implementing list-wise deletion (LWD), and (4) treating RGs as missing data followed by imputation using logistic regression-based methodologies. These strategies were examined across a diverse array of testing scenarios. Results indicate that the performance of each strategy varied depending on the specific manipulated factors. Both ignoring and penalizing RGs were found to introduce substantial distortions in equating accuracy. LWD generally exhibited the lowest bias among the strategies evaluated but showed higher standard errors. Data imputation methods, particularly those employing lasso logistic regression and bootstrap techniques, demonstrated superior performance in minimizing equating errors compared to other approaches.</p>","PeriodicalId":11502,"journal":{"name":"Educational and Psychological Measurement","volume":" ","pages":"00131644251329524"},"PeriodicalIF":2.1,"publicationDate":"2025-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11955993/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143763405","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Assessing the Properties and Functioning of Model-Based Sum Scores in Multidimensional Measures With Local Item Dependencies: A Comprehensive Proposal. 评估局部项目依赖多维度量中基于模型的总和分数的性质和功能:一个综合建议。
IF 2.1 3区 心理学
Educational and Psychological Measurement Pub Date : 2025-03-13 DOI: 10.1177/00131644251319286
Pere J Ferrando, David Navarro-González, Fabia Morales-Vives
{"title":"Assessing the Properties and Functioning of Model-Based Sum Scores in Multidimensional Measures With Local Item Dependencies: A Comprehensive Proposal.","authors":"Pere J Ferrando, David Navarro-González, Fabia Morales-Vives","doi":"10.1177/00131644251319286","DOIUrl":"https://doi.org/10.1177/00131644251319286","url":null,"abstract":"<p><p>A common problem in the assessment of noncognitive attributes is the presence of items with correlated residuals. Although most studies have focused on their effect at the structural level, they may also have an effect on the accuracy and effectiveness of the scores derived from extended factor analytic (FA) solutions which include correlated residuals. For this reason, several measures of reliability/factor saturation and information were developed in a previous study to assess this effect in sum scores derived from unidimensional measures based on both linear and nonlinear FA solutions. The current article extends these proposals to a second-order solution with a single general factor, and it also extends the added-value principle to the second-order scenario when local dependences are operating. Related to the added-value, a new coefficient is developed (an effect-size index and its confidence intervals). Overall, what is proposed allows first to assess the reliability and relative efficiency of the scores at both the subscale and total scale levels, and second, provides information on the appropriateness of using subscale scores to predict their own factor in comparison to the predictive capacity of the total score. All that is proposed is implemented in a freely available R program. Its usefulness is illustrated with an empirical example, which shows the distortions that correlated residuals may cause and how the various measures included in this proposal should be interpreted.</p>","PeriodicalId":11502,"journal":{"name":"Educational and Psychological Measurement","volume":" ","pages":"00131644251319286"},"PeriodicalIF":2.1,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11907499/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143647648","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Shortening Psychological Scales: Semantic Similarity Matters. 缩短心理量表:语义相似性问题。
IF 2.1 3区 心理学
Educational and Psychological Measurement Pub Date : 2025-02-24 DOI: 10.1177/00131644251319047
Sevilay Kilmen, Okan Bulut
{"title":"Shortening Psychological Scales: Semantic Similarity Matters.","authors":"Sevilay Kilmen, Okan Bulut","doi":"10.1177/00131644251319047","DOIUrl":"10.1177/00131644251319047","url":null,"abstract":"<p><p>In this study, we proposed a novel scale abbreviation method based on sentence embeddings and compared it to two established automatic scale abbreviation techniques. Scale abbreviation methods typically rely on administering the full scale to a large representative sample, which is often impractical in certain settings. Our approach leverages the semantic similarity among the items to select abbreviated versions of scales without requiring response data, offering a practical alternative for scale development. We found that the sentence embedding method performs comparably to the data-driven scale abbreviation approaches in terms of model fit, measurement accuracy, and ability estimates. In addition, our results reveal a moderate negative correlation between item discrimination parameters and semantic similarity indices, suggesting that semantically unique items may result in a higher discrimination power. This supports the notion that semantic features can be predictive of psychometric properties. However, this relationship was not observed for reverse-scored items, which may require further investigation. Overall, our findings suggest that the sentence embedding approach offers a promising solution for scale abbreviation, particularly in situations where large sample sizes are unavailable, and may eventually serve as an alternative to traditional data-driven methods.</p>","PeriodicalId":11502,"journal":{"name":"Educational and Psychological Measurement","volume":" ","pages":"00131644251319047"},"PeriodicalIF":2.1,"publicationDate":"2025-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11851598/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143515073","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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