Developing an Achievement Test about 7th Grade “Solar System and Beyond” Unit: Analysis of Validity and Reliability

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dc.contributor.authorDoğan, Fatih
dc.contributor.authorÖzdemir, Burcu
dc.date.accessioned2025-01-27T19:20:56Z
dc.date.available2025-01-27T19:20:56Z
dc.date.issued2020
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractThe aim of this research is to develop a reliable and valid achievementtest to measure academic success of pupils about 7th grade’s ‚SolarSystem and Beyond? unit. For this reason, depending on the objectivesof ‚Solar System and Beyond? unit, which is included in middle schoolscience program, which was published in 2018, 42 multiple-choice testquestions were prepared. The clearness of the test questions, cohesionwith the objectives and scientific knowledge were designed with thecare of various sights of the authorities in teaching science field whichdepend on the technic which was suggested by Lawshe (1975).According to this, content validity score was calculated as .94. The pilotstudy for this test put into practice with 254 students who had studied7th grade in 2018-2019 academic years. As a consequence of the itemstatistic which was realized in the process of test development by theanswers of the students for each question, difficulty score and itemdiscrimination were calculated for each of the item. As a consequenceof item statistic, 8 items were excluded from the test and the last formof the ‚Solar System and Beyond Academic Achievement Test? wasdesigned with 35 questions. As a result of the analysis, the last form’sKR-20 reliability co-efficient was calculated as .87. Average itemdifficulty index was calculated as .61 and average item discriminationindex was calculated as .48. According to this outcome, average itemdifficulty was identified as midlevel, and average item discriminationwas identified as high-level.
dc.identifier.doi10.18009/jcer.719913
dc.identifier.endpage502
dc.identifier.issn2148-2896
dc.identifier.issue16
dc.identifier.startpage476
dc.identifier.trdizinid393919
dc.identifier.urihttps://doi.org/10.18009/jcer.719913
dc.identifier.urihttps://search.trdizin.gov.tr/tr/yayin/detay/393919
dc.identifier.urihttps://hdl.handle.net/20.500.12428/15074
dc.identifier.volume8
dc.indekslendigikaynakTR-Dizin
dc.language.isoen
dc.relation.ispartofJournal of Computer and Education Research
dc.relation.publicationcategoryMakale - Ulusal Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_TRD_20250125
dc.subjectEğitim
dc.subjectEğitim Araştırmaları
dc.subjectAstronomi ve Astrofizik
dc.titleDeveloping an Achievement Test about 7th Grade “Solar System and Beyond” Unit: Analysis of Validity and Reliability
dc.typeArticle

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