Student Awareness of Space Science: Rasch Model Analysis for Validity and Reliability

Autor:	Nurul Shazana Abdul Hamid, Badariah Bais, Gan Kok Beng, Sabirin Abdullah, Siti Aminah Bahari, Mardina Abdullah, Nur Choiro Siregar, Roslinda Rosli, Noridawaty Mat Daud, Lilia Halim, Rosadah Abd Majid
Rok vydání:	2020
Předmět:	Outreach Measure (data warehouse) Rasch model Applied psychology Psychometric software Content validity Validity Construct validity Space Science Psychology
Zdroj:	World Journal of Education. 10:170
ISSN:	1925-0754 1925-0746
DOI:	10.5430/wje.v10n3p170
Popis:	Validity and reliability are crucial when conducting research to ensure the truthfulness of an instrument. This study investigated the measurement functioning of an instrument on students' awareness of space science. The instrument was administered to 206 secondary school students involved in the Sudden Ionospheric Disturbance π outreach program. Two experts evaluated the content validity of the instrument. Data were analyzed using the Winsteps 3.71.0.1 software to obtain the Rasch model analysis (RMA) on item reliability and persons' separation, item measure, item fit based on PTMEA CORR, polarity items, misfit items, unidimensionality, and a person-item map. The findings revealed that the items are valid, reliable, and appropriate to measure awareness of space science.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::e49f2da5e7777a0e8f677a875a829dc6 https://doi.org/10.5430/wje.v10n3p170 Zobrazit plný text záznamu