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VOL. 8, ISSUE 2 (2023)
Evaluating the effect of custom developed dynamic simulations on students conceptual understanding of chemical equilibrium: A mixed methods analysis
Authors
Bharath Sampath Kumar
Abstract
The purpose of this study is to evaluate the role of custom developed
dynamic simulation towards development of student’s concrete conceptual
understanding of chemical equilibrium. An explanatory sequential mixed methods
design was used in the study. Results from a one-factor ANCOVA showed posttest
scores were significantly higher for the experimental group (Mpost. = 7.27
SDpost = 1.387) relative to the control group (Mpost. = 2.67, SDpost = 1.371)
after adjusting for pretest scores, 𝐹
(1,24) = 71.82, 𝑀𝑆𝐸
= 1.497, 𝑝
= 0.03, 𝜂𝑝2
= 0.75, 𝑑
= 3.33. According to the procedure described in Thompson (2006), Cohen’s d was
converted to an attenuated effect size d*. The adjusted (for pretest scores)
group mean difference estimate without measure error correction for the
posttest scores and the pretest scores was 4.2 with a Cohen’s d = 3.04. An
alternate approach reported in Cho and Preacher (2015) [7] was used
to determine effect size. The adjusted (for pretest scores) group mean difference
estimate with measurement error correction only for the posttest scores (but
not with measurement error correction for the pretest scores) was 4.99 with
Cohen’s d = 3.61. Finally, the adjusted (for pretest scores) group mean
difference estimate with measurement error correction for both pretest and
posttest scores were 4.23 with Cohen’s d = 3.07. The effect size indicates a
strong relationship between the experimental intervention provided and
students’ conceptual understanding of chemical equilibrium concepts.
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Pages:47-55
How to cite this article:
Bharath Sampath Kumar "Evaluating the effect of custom developed dynamic simulations on students conceptual understanding of chemical equilibrium: A mixed methods analysis". International Journal of Advanced Education and Research, Vol 8, Issue 2, 2023, Pages 47-55
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