Nyet Moi Siew|Siti Shahirah Saidi
Reliability and Validity Analysis of Statistical Reasoning Test Survey Instrument using the Rasch Measurement Model
Universiti of Malaysia Sabah|Universiti of Malaysia Sabah
study assessment reliability validity analysis statistical reasoning test survey srts instrument using rasch measurement model srts instrument developed researchers assess students statistical reasoning descriptive statistics among tenth grade science stream students rural schools srts combination subjective test openended format questionnaire contained 12 items respondents statistical reasoning assessed based four constructs describing data organizing data representing data analyzing interpreting data sample comprised 115 76 girls 36 24 boys aged 1516 years old rural district sabah malaysia overall srts instrument found high reliability cronbachs alpha value kr20 081 results also showed srts excellent item reliability high item separation value 099 957 respectively srts also good person reliability person separation value 081 204 respectively meanwhile validity srts instrument appropriately established item fit person fit variable map unidimensionality conclusion study indicates srts reliable valid instrument measuring statistical reasoning sciencestream students rural secondary schools