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DEVELOPMENT AND VALIDATION OF CRITERION REFERENCED ACHIEVEMENT TEST IN BIOLOGY

SCIENCE EDUCATION TOPICS AND MATERIALS

DEVELOPMENT AND VALIDATION OF CRITERION REFERENCED ACHIEVEMENT TEST IN BIOLOGY

ABSTRACT

This study was designed to develop and validate criterion referenced achievement test for senior secondary two students in Biology. This became necessary because of the need to have a well developed and validated instrument with proven psychometric properties for teachers’ use in their continuous assessment exercise. This study was guided by three research questions and two hypotheses using instrumentation design. The population for the study was made up of 44,259 Biology students in senior secondary school class two (2010/2011 session) in Enugu State. The sample comprised 113 males and 184 females giving a total of 297 students. The instrument developed and validated was Criterion Referenced Achievement Test (CRAT) for SSII. The validity and reliability of the instrument was established. The internal consistency measure of the instrument was found to be 0.51 using Kudder Richardson formular 20 (KR-20). Mean and standard deviation were used to provide answers to the research questions while T-test and Chi Square Test of Goodness of fit were used to test the hypotheses at 0.05 level of significance. The result of the study showed that the items of CRAT did not deviate statistically from the specifications of the core curriculum; there is no statistical significant difference between the mean achievement of male and female.

Based on these findings, the researcher recommended that senior secondary 2 Biology teachers should make use of CRAT or test similar to this in the assessment of achievements of their students in Biology

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