Exploration of Student Cognitive Mathematics Ability Diagnostic Instruments: Validity, Reliability, and Item Characteristics

Autor/inn/en	Hartono, Wahyu; Hadi, Samsul; Rosnawati, Raden; Retnawati, Heri
Titel	Exploration of Student Cognitive Mathematics Ability Diagnostic Instruments: Validity, Reliability, and Item Characteristics
Quelle	In: Pegem Journal of Education and Instruction, 13 (2023) 3, S.386-394 (9 Seiten) PDF als Volltext kostenfreie Datei Verfügbarkeit
Zusatzinformation	ORCID (Hadi, Samsul)
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	2146-0655
Schlagwörter	Diagnostic Tests; Test Validity; Item Response Theory; Content Validity; Mathematics Tests; Elementary School Students; Test Reliability; Mathematics Skills; Factor Analysis; Construct Validity; Difficulty Level; Correlation; Test Items; Item Analysis; Foreign Countries; Indonesia + Suchen Sie Ihr Suchwort? Diagnostic test; Diagnostischer Test; Testvalidität; Item-Response-Theorie; Testreliabilität; Mathmatics achievement; Mathematics ability; Mathematische Kompetenz; Faktorenanalyse; Schwierigkeitsgrad; Korrelation; Test content; Testaufgabe; Itemanalyse; Ausland; Indonesien
Abstract	Researchers design diagnostic assessments to measure students' knowledge structures and processing skills to provide information about their cognitive attribute. The purpose of this study is to determine the instrument's validity and score reliability, as well as to investigate the use of classical test theory to identify item characteristics. The data used in the form of responses to elementary school mathematics subject. There are 166 students from 5 public elementary schools who participate in the study. The data analysis technique used is the analysis of item characteristics based on classical test theory using the R software package. The results showed that the developed mathematical ability diagnostic instrument had high content validity based on the Aiken formula and valid construct validity based on the CFA approach. According to the Spearman-Brown formulation, the correlation coefficient is about 0.889, indicating high internal consistency reliability. In the index of difficulty level, overall, it is categorized as moderate items. The discriminatory index shows that there are two items, namely items 9 and 17, with low discriminating power, so the two items are not used. Of the 60 total distractors, 5 (8.3%) did not function well because less than 5% of the participants chose them. In contrast, as many as 55 distractors (91.7%) have functioned well. (As Provided).
Anmerkungen	Pegem Academy Publishing and Educational Guidance Services TLC. Mesrutiyet Caddesi, No: 45, Ankara, Kizilay 06420, Turkey. e-mail: editor@pegegog.net; Web site: https://www.pegegog.net/index.php/pegegog
Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2024/1/01