Differences of Half-Split Equations on Estimating Test-Reliability Coefficient
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| Title: | Differences of Half-Split Equations on Estimating Test-Reliability Coefficient |
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| Language: | English |
| Authors: | Omar Saleh Bani Yassin (ORCID |
| Source: | Educational Process: International Journal. Article e2025015 2025 14. |
| Availability: | UNIVERSITEPARK Limited. iTOWER Plaza (No61, 9th floor) Merkez Mh Akar Cd No3, Sisli, Istanbul, Turkey 34382. e-mail: editor@edupij.com; Web site: http://www.edupij.com/ |
| Peer Reviewed: | Y |
| Page Count: | 13 |
| Publication Date: | 2025 |
| Document Type: | Journal Articles Reports - Research |
| Education Level: | Grade 10 High Schools Secondary Education |
| Descriptors: | Foreign Countries, Equations (Mathematics), Mathematics Instruction, Grade 10, Secondary School Mathematics, Mathematics Curriculum, Test Reliability, Test Validity, Computation |
| Geographic Terms: | Jordan |
| ISSN: | 2147-0901 2564-8020 |
| Abstract: | Background/purpose: This study aimed to investigate the differences among the equations used in estimating the reliability coefficient using the half-split method. These equations demonstrate Spearman-Brown's, Rulon's, Guttman's, Mosier's, Flanagan's, and Horst's. Materials/methods: The study instrument was a 43-item scale for evaluating the computerized mathematics curriculum for the tenth grade in southern Jordan. It was applied to a sample of 303 male and female teachers and educational supervisors. Results: The results showed that all values of the reliability coefficients estimated in the six equations were acceptable. In addition, the best equation for estimating the half-split reliability coefficient was the Spearman-Brown equation, followed by two equations by Flanagan and Rulon. Conclusion: Considering the results of the current study, the researchers do not recommend using Mosier's equation because it gave the lowest reliability-coefficient value. |
| Abstractor: | As Provided |
| Entry Date: | 2025 |
| Accession Number: | EJ1459533 |
| Database: | ERIC |
| Abstract: | Background/purpose: This study aimed to investigate the differences among the equations used in estimating the reliability coefficient using the half-split method. These equations demonstrate Spearman-Brown's, Rulon's, Guttman's, Mosier's, Flanagan's, and Horst's. Materials/methods: The study instrument was a 43-item scale for evaluating the computerized mathematics curriculum for the tenth grade in southern Jordan. It was applied to a sample of 303 male and female teachers and educational supervisors. Results: The results showed that all values of the reliability coefficients estimated in the six equations were acceptable. In addition, the best equation for estimating the half-split reliability coefficient was the Spearman-Brown equation, followed by two equations by Flanagan and Rulon. Conclusion: Considering the results of the current study, the researchers do not recommend using Mosier's equation because it gave the lowest reliability-coefficient value. |
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| ISSN: | 2147-0901 2564-8020 |
