RASCH analysis to analyze anxiety assessment instruments In Postpartum Mothers

Abstract

Globally, an estimated 20% of birthing women experience postpartum Anxiety. Women, after childbirth, require both physical and psychological adaptation. If not treated immediately, then postpartum mothers can experience different anxiety levels. Anxiety in postpartum mothers can harm both mother and baby. Therefore, health workers need to do early detection related to Anxiety. This assessment (Postpartum Specific Anxiety Scale) or PSAS helps health workers assess Anxiety in postpartum mothers starting from the beginning of the puerperium. But, of course, this measuring instrument needs to be analyzed to determine how well this instrument can be used. A Rasch analysis is needed to picture postpartum maternal Anxiety accurately. Rasch analysis is considered to have the advantage of making statistical analysis results more accurate and increasing measurement accuracy. Based on the results of analysis using the Winsteps program, it is known that there are 34 items out of 51 items that meet the item-model accuracy index, with an alpha coefficient of 0.94. The value of the separation item index in this instrument is 3.06. The value of unexplained variance does not exceed 15%, so this instrument is ideal for use. Overall, it can be concluded that the anxiety assessment scale in postpartum mothers, namely PSAS, has good psychometric properties for assessment and research.