Rasch Analysis of the Korean Parenting Stress Index Short Form (K-PSI-SF) in Mothers of Children with Cerebral Palsy

Eun-Young Park,Soojung Chae

doi:10.3390/ijerph17197010

Abstract

The purpose of this study was to investigate the psychometric characteristics of the Korean Parenting Stress Index Short Form (K-PSI-SF) for mothers of children with cerebral palsy (CP) by using a Rasch analysis. The participants were 114 mothers of children with CP whose ages ranged from 2.79 to 11.90 years. The K-PSI-SF consists of 36 items, with a 5-point Likert scale grading along three subscales (Parent Distress, Parent–Child Dysfunctional Interaction, and Difficult Child). The response data were analyzed, and we determined the item fitness and item difficulty, rating scale fit, and separation index. The results show that two items did not have the required fitness. After these two items were deleted, the means of the 34 items in two of the subscales were statistically different from those of the original 36 items. Our analysis of the item difficulty identified the need to add easier question items. The 5-point Likert scale used in the questionnaire was found to be appropriate. This significance of this study is that it suggested the need to modify item fitness and difficulty level, as it identified the psychometric characteristics of the K-PSI-SF through a Rasch analysis based on the item response theory.

Highlights

Cerebral palsy (CP), the most common childhood neurological disorder, is defined as an impairment of movement and posture due to immature brain deficit or damage [1]
This significance of this study is that it suggested the need to modify item fitness and difficulty level, as it identified the psychometric characteristics of the K-Parenting Stress Index (PSI)-SF through a Rasch analysis based on the item response theory
The purpose of this study is to examine the psychometric properties of the Korean Parenting Stress Index (K-PSI)-SF in mothers of children with CP

Summary

Introduction

Cerebral palsy (CP), the most common childhood neurological disorder, is defined as an impairment of movement and posture due to immature brain deficit or damage [1]. About 25% to 30% of children with CP become independent adults through rehabilitation treatment [2], but the remaining 70% to 75% require assistance and continuous rehabilitation in adulthood [3]. Most parents of children with CP must care for their adult children, and their anxiety about their children’s future and consequent parenting stress often lasts relatively longer compared to the parents of ordinary children [4]. Parenting stress is a major factor influencing the development of children in the context of families [5]. Parenting stress was a factor in hyperactivity; aggression due to emotional maladaptive behavior and abuse affected all factors of emotional maladaptive behavior [6]

Objectives

Methods

Results

Discussion

Conclusion