The validity of the assessment for learning measurement instrument for Ethiopian middle school mathematics teachers

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ABSTRACT This article reports on a study that examined the validity of the Assessment for Learning Measurement Instrument (AfLMi). Data were gathered from 176 middle school mathematics teachers in Ethiopia. Confirmatory factor analysis and graded response model (GRM) IRT analysis were performed using Mplus 8.6. The original correlated four-factor model was compared to four competing models: one-factor, correlated three-factor, second-order, and bifactor models. The results showed that the bifactor model outperformed the other models, indicating that the AfLMi predominantly measures one general practice, i.e. assessment for learning, in the Ethiopian context, with little evidence that the four specific AfL strategies can be used independently as subscales. Furthermore, the IRT analysis revealed that the AfLMi, as a unidimensional measure of AfL practice, is composed of items with acceptable item discrimination indices and difficulty parameters. The AfL measurement instrument has excellent construct validity and reliability for assessing the AfL practices of mathematics teachers.

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The importance of providing structural validity evidence for test score(s) derived from psychometric test instruments is highlighted by several institutions; for example, the American Psychological Association (2014) demands that evidence for the validity of an instruments' internal structure and its underlying measurement model must be provided before it is applied in psychological assessment. The knowledge about the latent structure of data obtained with tests addressing the major question "What is/are the construct[s] being measured" by psychological tests under investigation (Ziegler, 2014 (Ziegler, , 2020)) . The study of structural validity is typically addressed with factor analyses when the test scores reflect continuous latent traits. As most submissions to Psychological Test Adaptation and Development (PTAD) deal with the adaptation and further development of existing measures, authors typically test a measurement model that is based on theoretical considerations and prior findings on original versions (or adaptations) of the test under investigation. Our literature review of PTAD's publications showed that more than 90% of the articles contain at least one confirmatory factor analysis (CFA). As editor and reviewers of PTAD, we appreciate that authors are rigorous in providing evidence on the structural validity of their tests' data. However, since PTAD's inception in 2019, we experience that one comment is frequently communicated to authors during the review process, namely, the request to adjust the analytic approach in CFA from maximum likelihood (ML) estimation toward using the mean-and variance-adjusted weighted least squares (WLSMV; Muthén et al., 1997) estimator to account for the ordinal nature of the data that psychological instruments typically generate on the item level. In this editorial, we discuss the rationale behind choosing the WLSMV estimator when analyzing test adaptations and developments that are based on ordinal categorical data and concisely illustrate the problems associated with using the ML estimator (potentially in combination with robust tests of model fit) for such data.

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Mindful Attention Awareness in Spanish Palliative Care Professionals
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Abstract. Mindfulness is conceived as a state in which the individual pays full attention to everything that is happening around him or her. The Mindful Attention Awareness Scale (MAAS) is the most popular instrument for assessing mindfulness. Studies on its structure have shown some conflicting results. This study aims to offer new evidence on the dimensionality and reliability of the MAAS, handling both SEM and IRT procedures, in palliative professionals. The sample was composed of 385 professionals from a national online survey. First, two Confirmatory Factor Analyses (CFAs) were specified, estimated, and tested, with one- and two-factor structures, respectively. Second, the Graded Response Model (GRM) was used and accuracy of the MAAS using information functions was estimated. Results showed appropriate fit for the two CFA models. As the correlation between the two factors in the two-factor model was extremely high and the original authors posited a one-factor solution, this structure was retained for parsimony. The GRM also supported this structure, but found that the scale offered more information on professionals with lower levels of mindfulness, pointing at items 1, 2, 6, and 15 as the less discriminative, in line with the CFA lower factor loadings for these very same items.

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Middle School Mathematics Teachers’ Professional Development and Student Achievement
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  • James A Telese

Middle school mathematics teacher quality is questionable because the number of certified mathematics teachers considered highly qualified is low (Birman et al., 2009). The author examined Grade 8 data from the 2005 National Association of Educational Progress mathematics assessment. The purposes of the study were to (a) determine the impact of middle school mathematics teachers’ content knowledge and teachers’ mathematics pedagogical knowledge on student achievement and (b) compare the effect of the degree to which teachers received reform-oriented professional development activities on student achievement. The results indicated that mathematics content knowledge has a larger role in predicting student achievement than mathematics pedagogical knowledge. Also, teachers who reported participating in fewer professional development activities had students with higher scores than those students whose teachers reported either participating in more professional development. Results for various professional development activities are also presented.

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An Examination of Middle School Mathematics Teachers' Pedagogical Content Knowledge Regarding Prime Numbers
  • Jan 5, 2026
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This study examines middle school mathematics teachers’ pedagogical content knowledge (PCK) regarding prime numbers. The study focuses on three subcomponents of PCK: Subject matter knowledge, knowledge of students’ understanding, and knowledge of instructional strategies. A case study method, one of the qualitative research approaches, was employed. The participants consisted of 12 middle school mathematics teachers. Data were collected through the Prime Numbers Knowledge Test (PNKT) and semi-structured interviews developed by the researchers. The data were analyzed using content analysis. The findings revealed that mathematics teachers demonstrated limited PCK, particularly in the components of subject matter knowledge and knowledge of instructional strategies. Specifically, it was observed that teachers provided definitions and responded to questions related to prime numbers without including negative integers, indicating gaps in their subject matter knowledge. Regarding the knowledge of students’ understanding component, participants showed satisfactory competence and performed better than in the other two components. Findings revealed that the teachers had a high level of awareness regarding students' learning difficulties, errors, and misconceptions, and they were able to correctly answer the questions posed by the researchers in this regard. Despite this relative strength, teachers’ knowledge of instructional strategies was notably weak. Although teachers confused the concepts of strategy, method, and technique, they still applied these in their teaching practices. The presentation teaching strategy, the discovery-based teaching strategy, and the question-and-answer technique were identified as the most frequently implemented by the participants.

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  • Cite Count Icon 4
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  • Annals of General Psychiatry
  • Hongqiang Shi + 5 more

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