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VOL. 1, ISSUE 2 (2025)
Development and validation of geography aptitude test for secondary school students using Item Response Theory
Authors
Erutujiro Goodluck, Onuoha Obinna I
Abstract
Aptitude test assess knowledge, skills and
other characteristics that serve to predict learning and success.
Unfortunately, there is scarcity of geography aptitude test. The major concern
of this study is how to develop and validate geography aptitude test for
secondary school students using item response theory. Six research questions
guided the study. The design of this study is instrumentation research design. The
study was conducted in Delta State, Nigeria. The population of the study is
made up of 3,952 SS 1 students offering geography in 2022/2023 academic session
in Delta State. The sample for the study consisted of 1400 SS1 students drawn
using simple random sampling technique. The initial instrument was developed by
the researcher was made up of 60 items drawn from SS1 Geography curriculum. The
instrument was administer through the help of research assistants. The
assumption of dimensionality was assessed using Dimtest statistic in DIMPACK
while local independence of the test items were checked using Yen Q3
statistics. Item parameters were calibrated using Maximum Likelihood estimation
in Mplus Version 7. The researcher found out that the instrument is
multidimensional and the assumption of local independence of the test items was
not violated. Also, the instrument has both convergent and discriminant
validity. The entire scale has empirical reliability of 0.81.
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Pages:65-70
How to cite this article:
Erutujiro Goodluck, Onuoha Obinna I "Development and validation of geography aptitude test for secondary school students using Item Response Theory". International Journal of Advanced Education
, Vol 1, Issue 2, 2025, Pages 65-70
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