Quarterly of Educational Measurement

Abstract Digital literacy competencies play a pivotal role in teachers' professional development. However, the absence of effective instrument for measuring teacher digital learning has hampered researches in this area. The aim of this study was to investigate the psychometric properties of Zimmer, McTigue and Matsuda (2021) Digital Learning Identity Questionnaire. The research method was survey. The statistical population of the study was all school teachers in Mashhad who were teaching in the academic year 1399-1400. Using the available sampling method and based on Cochran's formula, the sample size was 420 people. The questionnaire was distributed and completed electronically after translation and validation by experts. Confirmatory factor analysis was used to determine the validity of the structure and internal consistency method (Cronbach's alpha) was used for reliability. The results of confirmatory factor analysis confirmed the fit of the model and the structure of the internal relations of the items. Cronbach's alpha coefficient for the digital learning identity questionnaire was 0.97 and for self-regulated learning (0.86), Knowledge Resources (0.91), Attitude (0.91), efficacy (0.91), knowledge achievement (0.91) and challenge (0.90) were obtained. Conclusion: Teachers' digital learning identity questionnaire has acceptable psychometric properties and can be used as a valid instrument in research.

Abstract The purpose of this study was to determine the degree of attention of the national curriculum document to the student’s assessment in physical education. The research was applied in terms of purpose and content analysis in terms of method. The statistical population was the national curriculum document that all parts were purposefully selected as a sample. The research tool was a checklist prepared by the researcher and its content validity was confirmed by 5 experts and its reliability was confirmed by calculating Scott's agreement coefficient of 0.93. Descriptive statistics was used to show the frequency of results; Reliability of the findings was obtained using four criteria of reliability, transfer ability, reliability and verification the content with 20 units equal to 33% with the highest frequency and the assessment tool with 1 unit equal to 2% and the lowest frequency was identified. Also, Principles of assessment with 16 units, equal to 27%, assessment policies with 8 units, equivalent to 13%, purpose with 5 units, equal to 8%, assessment method and assessor with 4 units, equal to 7% and time assessment with 2 units, equal to 3%, were identified. The national curriculum document had relative but unbalanced and uncoordinated attention to the components of assessment in physical education

Abstract Testing is an important part of teaching any language and an important part of learning a language. Vocabulary size test is one of placement tests that is used to determine the level of lexical knowledge of language learners .This test is designed in many languages and its vacancy was felt in the Persian. To design a vocabulary size test, one must pay attention to the frequency of the words used and linguistic corpus. The corpus used in this research is including paper texts in seven different fields. To design this test for each group of words, 80 questions were designed and arranged from high-frequency to low-frequency. The questions were computerized and the link was sent to the language learners. 130 people answered the test. 45 language learners also participated in the retest. Analysis showed that the mean test scores increased with the language level of the language learners. Skewness and Analysis of variance also showed that the data distribution was normal and the difference between the mean scores of different groups of novice, elementary, intermediate and advanced in this test was significant. Calculation of the correlation between test scores and retest scores indicates a strong correlation and test reliability. The interpretation of the scores of different language levels was also done and it was determined that each language level of the score can determine which language level. Based on this research, it can be said that the vocabulary size test can determine the language level of language learners as a placement test.

Abstract The aim of this article was to Construction and validation of the questionnaire of Evaluation of quality of e-learning management system based on ISO 9126 standard.In order to, a questionnaire was designed based on a systematic review of theoretical foundations and considering the indicators of ISO 9126. To analyze the questions, the methods of calculating the difficulty index, discriminative index and loop method and for face validity, content validity and construct validity were used to validate the questionnaire. Its validity was confirmed by experts and its reliability was obtained using Cronbach's alpha of 0.907. Sampling in this research was simple random And the final sample size was calculated based on Klein's view that for each factor 40 people considered, and the total sample was 350 people.The statistical population of the study includes undergraduate and graduate students of Iran University of Science and Technology and K. N.Toosi University. The results showed that, the quality assessment questionnaire of e-learning management system based on ISO 9126 In operational indicators, Functionality, usability, efficiency and reliability has good validity and reliability and the factors obtained from factor analysis can evaluate the quality of e-learning management system.

Abstract Meta-analysis of the effectiveness of sex education on psychological variables
This research was carried out to investigate Quantitative results of experimental studies conducted on the effect of sex education on parents and children using meta-analysis method between 1394-1400 in Iran. The statistical population is all studies related to sexual education that have been published in scientific research journals, Among them, 10 studies that were methodologically acceptable were selected and meta-analyzed. The research tool was a meta-analysis checklist and Cohen's effect size method was used to obtain the overall relation value. Data analysis was performed with version 2 of CMA software. The results showed that the average size of the effects is 1.17 which is a high effect size. It is included that sex education has had a significant effect on the psychological variables used in the studies. However, new research in this area seems necessary.
Keywords: Meta-analysis، sex education، psychological variables

Abstract Using different methods and techniques to achieve the best results and create synergies between them can be helpful in many issues. Educational data mining is one of the relatively new fields that can be used to solve educational problems, especially problems in the field of measurement. But before using these methods, it should be as familiar as possible and its problems, disadvantages and advantages should be examined. In this study, the aim is to investigate the technique of nonnegative matrix factorizations and how to determine the number of clusters before implementing the model. The research method is descriptive and the study population is all those present at the entrance exam for mathematics and technical sciences in 1398, of which 5,000 people were randomly selected by the country's assessment and education organization and provided to the researcher. The research tool is math questions and entrance exam geometry. The results of this analysis showed that there is a difference in estimating the number of clusters of math questions, but in the case of geometry questions, the results of all methods were the same. Due to the observed differences, it is suggested that in future research with the help of data simulation, this issue will be examined in more detail.