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ERIC Number: EJ1379716
Record Type: Journal
Publication Date: 2023
Pages: 21
Abstractor: As Provided
ISBN: N/A
ISSN: ISSN-1822-7864
EISSN: EISSN-2538-7111
An Algebraic Thinking Skill Test in Problem-Solving for Seventh Graders
Jahudin, Janet; Siew, Nyet Moi
Problems of Education in the 21st Century, v81 n2 p223-243 2023
Diagnostic tests have been developed previously to measure algebraic thinking skills; however, the tests do not specifically address algebraic problem-solving. Thus, an Algebraic Thinking Test (ATT) Instrument was developed to measure algebraic thinking skills in problem-solving involving linear equations. ATT comprises nine open-ended questions with three algebraic thinking constructs: Generalized Arithmetic, Functions and Modelling. Generalized arithmetic involves students in efficient calculation and generalization; functional involves identifying number patterns, while modelling involves solving openended problems, identifying similarities, and performing calculations involving variables. This study is meant to determine the quality of ATT instruments through the validity and reliability analysis using the Rasch Measurement Model. The sample consisted of 120 seventh graders aged 12 to 13, selected from two secondary schools in the Tuaran district, Malaysia. The instrument was found to have a strong dimensionality and high construct validity. The reliability of Cronbach Alpha (KR-20) demonstrated a value of 0.90 (very high), and item and respondent reliability of 0.98 (excellent) and .86 (good), respectively, with an item separation index of 6.29 and 2.45 for the person separation index. ATT has good validity and high reliability in measuring algebraic thinking skills among seventh graders in secondary schools.
Scientia Socialis Ltd. 29 K. Donelaicio Street, LT-78115 Siauliai, Republic of Lithuania. e-mail: scientia@scientiasocialis.lt; e-mail: problemsofeducation@gmail.com; Web site: http://www.scientiasocialis.lt/pec/
Publication Type: Journal Articles; Reports - Research
Education Level: Elementary Education; Grade 7; Junior High Schools; Middle Schools; Secondary Education
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Identifiers - Location: Malaysia
Grant or Contract Numbers: N/A