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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
Language: English
Authors: Omar Saleh Bani Yassin (ORCID 0000-0002-4495-1030), Aiman Mohammad Freihat (ORCID 0000-0002-4161-4143), Sabri Hassan Al-Tarawneh
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
FullText Text:
  Availability: 0
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  – Url: https://eric.ed.gov/contentdelivery/servlet/ERICServlet?accno=EJ1459533
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  Data: Differences of Half-Split Equations on Estimating Test-Reliability Coefficient
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  Data: <searchLink fieldCode="AR" term="%22Omar+Saleh+Bani+Yassin%22">Omar Saleh Bani Yassin</searchLink> (ORCID <externalLink term="https://orcid.org/0000-0002-4495-1030">0000-0002-4495-1030</externalLink>)<br /><searchLink fieldCode="AR" term="%22Aiman+Mohammad+Freihat%22">Aiman Mohammad Freihat</searchLink> (ORCID <externalLink term="https://orcid.org/0000-0002-4161-4143">0000-0002-4161-4143</externalLink>)<br /><searchLink fieldCode="AR" term="%22Sabri+Hassan+Al-Tarawneh%22">Sabri Hassan Al-Tarawneh</searchLink>
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  Data: <searchLink fieldCode="SO" term="%22Educational+Process%3A+International+Journal%22"><i>Educational Process: International Journal</i></searchLink>. Article e2025015 2025 14.
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  Data: 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/
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  Data: Y
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  Data: 13
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  Data: 2025
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  Data: Journal Articles<br />Reports - Research
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  Data: <searchLink fieldCode="EL" term="%22Grade+10%22">Grade 10</searchLink><br /><searchLink fieldCode="EL" term="%22High+Schools%22">High Schools</searchLink><br /><searchLink fieldCode="EL" term="%22Secondary+Education%22">Secondary Education</searchLink>
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  Label: Descriptors
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  Data: <searchLink fieldCode="DE" term="%22Foreign+Countries%22">Foreign Countries</searchLink><br /><searchLink fieldCode="DE" term="%22Equations+%28Mathematics%29%22">Equations (Mathematics)</searchLink><br /><searchLink fieldCode="DE" term="%22Mathematics+Instruction%22">Mathematics Instruction</searchLink><br /><searchLink fieldCode="DE" term="%22Grade+10%22">Grade 10</searchLink><br /><searchLink fieldCode="DE" term="%22Secondary+School+Mathematics%22">Secondary School Mathematics</searchLink><br /><searchLink fieldCode="DE" term="%22Mathematics+Curriculum%22">Mathematics Curriculum</searchLink><br /><searchLink fieldCode="DE" term="%22Test+Reliability%22">Test Reliability</searchLink><br /><searchLink fieldCode="DE" term="%22Test+Validity%22">Test Validity</searchLink><br /><searchLink fieldCode="DE" term="%22Computation%22">Computation</searchLink>
– Name: Subject
  Label: Geographic Terms
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22Jordan%22">Jordan</searchLink>
– Name: ISSN
  Label: ISSN
  Group: ISSN
  Data: 2147-0901<br />2564-8020
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: 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.
– Name: AbstractInfo
  Label: Abstractor
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  Data: As Provided
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  Data: 2025
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  Data: EJ1459533
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=eric&AN=EJ1459533
RecordInfo BibRecord:
  BibEntity:
    Languages:
      – Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 13
    Subjects:
      – SubjectFull: Foreign Countries
        Type: general
      – SubjectFull: Equations (Mathematics)
        Type: general
      – SubjectFull: Mathematics Instruction
        Type: general
      – SubjectFull: Grade 10
        Type: general
      – SubjectFull: Secondary School Mathematics
        Type: general
      – SubjectFull: Mathematics Curriculum
        Type: general
      – SubjectFull: Test Reliability
        Type: general
      – SubjectFull: Test Validity
        Type: general
      – SubjectFull: Computation
        Type: general
      – SubjectFull: Jordan
        Type: general
    Titles:
      – TitleFull: Differences of Half-Split Equations on Estimating Test-Reliability Coefficient
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          Name:
            NameFull: Omar Saleh Bani Yassin
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            NameFull: Aiman Mohammad Freihat
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            NameFull: Sabri Hassan Al-Tarawneh
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          Dates:
            – D: 01
              M: 01
              Type: published
              Y: 2025
          Identifiers:
            – Type: issn-print
              Value: 2147-0901
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              Value: 2564-8020
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              Value: 14
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            – TitleFull: Educational Process: International Journal
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