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Development Of A Three-tier Test To Assess Ninth Grade Students' / Misconceptions About Simple Electric CircuitsPesman, Haki 01 September 2005 (has links) (PDF)
The main purpose of this study was to develop a three-tier test for assessing ninth-grade students&rsquo / misconceptions about simple electric circuits. The first tier of an item on the test presents an ordinary multiple choice question, the second tier presents a set of reasons for the response given to the first tier, and the third tier questions if examinees are confident for their responses to the first two tiers. The study was carried in Polatli, the biggest outlying district of capital Ankara. In the light of the related literature, interviews were conducted by the researcher so as to collect information about students&rsquo / understanding of simple electric circuits. Thereby, a list of misconceptions was acquired and it was used for developing an open-ended questionnaire. Next, the questionnaire was examined by two physics teachers and an instructor from METU for establishing content validity. The questionnaire was administered to 99 ninth-grade students and their responses were categorized in the purpose
of determining the distracters of the three-tier test / the Simple Electric Circuit Diagnostic Test (SECDT). At last, the SECDT was developed and administered to 124 ninth-grade students. The validity of the SECDT was established by means of quantitative methods in addition to the qualitative methods. A positive correlation coefficient was estimated between student scores and confidence levels, that is, successful students on the SECDT were more confident for their responses than unsuccessful students. This result means that the SECDT works properly, for example, students generally understood the items and found their reasoning among the distracters. Also, what items measure was investigated by means of factor analysis, and three reasonable factors were obtained. Furthermore, proportions of false positives and negatives were estimated and found as 17.47 % and 10.82 %, respectively. As well as, Cronbach alpha reliability coefficient of student scores was estimated as 0.69, but the reliability coefficient of student misconception scores was estimated as 0.33. Consequently, the SECDT scores are valid and reliable measure of students&rsquo / qualitative understanding of simple electric circuits / however, misconception scores may not be reliable.
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Designing conceptual change activities for the physics curriculum : the Cyprus paradigmKapertzianis, Achillefs S. 05 1900 (has links)
This study is a two part research project that describes and evaluates the efforts of the
researcher to bring change in Cyprus' educational system, in the field of simple electric
circuits. The objective of the first part was the assessment and evaluation of Cypriot
STVE students' perceptions about simple electric circuits. The objective of the second
part was to measure the effectiveness that conceptual change model-based instructional
activities designed by the researcher had on changing students' misconceptions about
simple electric circuits towards scientifically accepted ideas. Transformative mixed
methods research design was used consisting mainly from an one-group pre-test post-test
design with Determining and Interpreting Resistive Electric Circuits Concepts Test 1.2
as a research instrument, while interviews and field notes were used for triangulation. The
findings showed that there was a significant improvement in students' understanding of
simple electric circuit concepts that were taught using conceptual change model-based
instructional activities. / Science and Technology Education / M. Sc. (Mathematics, Science and Technology Education)
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Designing conceptual change activities for the physics curriculum : the Cyprus paradigmKapartzianis, Achillefs S. 05 1900 (has links)
This study is a two part research project that describes and evaluates the efforts of the
researcher to bring change in Cyprus' educational system, in the field of simple electric
circuits. The objective of the first part was the assessment and evaluation of Cypriot
STVE students' perceptions about simple electric circuits. The objective of the second
part was to measure the effectiveness that conceptual change model-based instructional
activities designed by the researcher had on changing students' misconceptions about
simple electric circuits towards scientifically accepted ideas. Transformative mixed
methods research design was used consisting mainly from an one-group pre-test post-test
design with Determining and Interpreting Resistive Electric Circuits Concepts Test 1.2
as a research instrument, while interviews and field notes were used for triangulation. The
findings showed that there was a significant improvement in students' understanding of
simple electric circuit concepts that were taught using conceptual change model-based
instructional activities. / Science and Technology Education / M. Sc. (Mathematics, Science and Technology Education)
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