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Article
A Scientific Inquiry Abilities Test (SIAT) for Senior High School Students
Author(s)
Fu-Pei Hsieh
Jeng-Fung Hung, Men-An Pan, Kun Lee
Full-Text PDF XML 726 Views
DOI:10.17265/2161-6248/2017.04.001
Affiliation(s)
Kuang-Hua Primary School, Kaohsiung, Taiwan
National Kaohsiung Normal University, Kaohsiung, Taiwan
ABSTRACT
The purpose of this study was
to develop a reliable and valid Scientific Inquiry Abilities Test (SIAT) for practical and academic uses. Two hundred and thirty 10th, 11th, and 12th
grade students in Taiwan provided answers used for item analysis and construct
validity testing. The results were as follows: 1. The
SIAT contains 27 items including five testlets; 2. The
average of difficulty analysis was 0.74 and the average of discrimination analysis was 0.20; 3.
The
internal consistency was 0.629
and the scorer reliability coefficient was 0.964; 4. There
were moderate correlations between all testlet scores and whole test scores (p = 0.000) with values ranging from 0.534 to 0.684; 5. The values
for discriminant validity ranged from 0.158 to 0.323;
and 6. High-achievement
students out-performed
their counterparts on the SIAT, and large effect sizes
(ESs) were also found for all the testlets. These
results indicated that the SIAT possesses high-reliability and construct validity. Finally, the
paper addressed
implications for future research and science teaching.
KEYWORDS
scientific inquiry, Scientific Inquiry Abilities Test (SIAT), validation
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