Psychometric evaluation of diagnostic test instruments on physics wave material
This study aims to evaluate the psychometric quality of diagnostic test instruments on wave material in physics learning, with a focus on their validity and reliability. The instrument was validated by seven experts using the content validation method, which resulted in an average validity score of...
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Universitas Negeri Yogyakarta
2025-04-01
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| Series: | Jurnal Penelitian dan Evaluasi Pendidikan |
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| Online Access: | https://journal.uny.ac.id/index.php/jpep/article/view/84655 |
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| author | Muh. Asriadi AM Anna Isabela Sanam |
| author_facet | Muh. Asriadi AM Anna Isabela Sanam |
| author_sort | Muh. Asriadi AM |
| collection | DOAJ |
| description | This study aims to evaluate the psychometric quality of diagnostic test instruments on wave material in physics learning, with a focus on their validity and reliability. The instrument was validated by seven experts using the content validation method, which resulted in an average validity score of 0.849, indicating that the instrument is very valid. Confirmatory factor analysis (CFA) was conducted to test the model fit and validity of the instrument structure. The KMO test results showed a figure of 0.946, indicating the suitability of the data for factor analysis, while the Bartlett Test of Sphericity results confirmed that the intercorrelation data was not an identity matrix. The tested model showed a good fit to the data, with a CFI value of 0.948, TLI of 0.935, and RMSEA of 0.072. The model parameter estimates showed a significant relationship between the latent variables and the observed items, with a strong influence from the "Wave" variable. Although the Chi-square test results indicated a statistically poor fit of the model, this result could be influenced by the large sample size. Limitations of this study include the limited sample size of seven validators, which may not cover all perspectives. This study suggests that further research involving a larger number of validators and more in-depth analysis should be conducted to strengthen the results obtained. The results of this study are expected to contribute to the development of more effective diagnostic test instruments for physics teaching at the secondary school level. |
| format | Article |
| id | doaj-art-7d97a89c96de47dba91dc8858d4326c5 |
| institution | OA Journals |
| issn | 2685-7111 2338-6061 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | Universitas Negeri Yogyakarta |
| record_format | Article |
| series | Jurnal Penelitian dan Evaluasi Pendidikan |
| spelling | doaj-art-7d97a89c96de47dba91dc8858d4326c52025-08-20T02:34:09ZengUniversitas Negeri YogyakartaJurnal Penelitian dan Evaluasi Pendidikan2685-71112338-60612025-04-01291718410.21831/pep.v29i1.8465568665Psychometric evaluation of diagnostic test instruments on physics wave materialMuh. Asriadi AM0https://orcid.org/0000-0003-4370-3550Anna Isabela Sanam1Universitas Pendidikan IndonesiaInstitute of BusinessThis study aims to evaluate the psychometric quality of diagnostic test instruments on wave material in physics learning, with a focus on their validity and reliability. The instrument was validated by seven experts using the content validation method, which resulted in an average validity score of 0.849, indicating that the instrument is very valid. Confirmatory factor analysis (CFA) was conducted to test the model fit and validity of the instrument structure. The KMO test results showed a figure of 0.946, indicating the suitability of the data for factor analysis, while the Bartlett Test of Sphericity results confirmed that the intercorrelation data was not an identity matrix. The tested model showed a good fit to the data, with a CFI value of 0.948, TLI of 0.935, and RMSEA of 0.072. The model parameter estimates showed a significant relationship between the latent variables and the observed items, with a strong influence from the "Wave" variable. Although the Chi-square test results indicated a statistically poor fit of the model, this result could be influenced by the large sample size. Limitations of this study include the limited sample size of seven validators, which may not cover all perspectives. This study suggests that further research involving a larger number of validators and more in-depth analysis should be conducted to strengthen the results obtained. The results of this study are expected to contribute to the development of more effective diagnostic test instruments for physics teaching at the secondary school level.https://journal.uny.ac.id/index.php/jpep/article/view/84655aiken's vefacfareliabilitydiagnostic test |
| spellingShingle | Muh. Asriadi AM Anna Isabela Sanam Psychometric evaluation of diagnostic test instruments on physics wave material Jurnal Penelitian dan Evaluasi Pendidikan aiken's v efa cfa reliability diagnostic test |
| title | Psychometric evaluation of diagnostic test instruments on physics wave material |
| title_full | Psychometric evaluation of diagnostic test instruments on physics wave material |
| title_fullStr | Psychometric evaluation of diagnostic test instruments on physics wave material |
| title_full_unstemmed | Psychometric evaluation of diagnostic test instruments on physics wave material |
| title_short | Psychometric evaluation of diagnostic test instruments on physics wave material |
| title_sort | psychometric evaluation of diagnostic test instruments on physics wave material |
| topic | aiken's v efa cfa reliability diagnostic test |
| url | https://journal.uny.ac.id/index.php/jpep/article/view/84655 |
| work_keys_str_mv | AT muhasriadiam psychometricevaluationofdiagnostictestinstrumentsonphysicswavematerial AT annaisabelasanam psychometricevaluationofdiagnostictestinstrumentsonphysicswavematerial |