Psychometric testing of the Chinese version of ISPCAN Child Abuse Screening Tools Children's Home Version (ICAST-CH-C)☆
Introduction
The definition and clinical manifestations of child maltreatment is diverse and complex. The estimation of the number of child maltreatment victims varies with the World Health Organization (WHO) indicating that 25–50% of children suffer from physical abuse (WHO, 2006) while others report that 12.7% of children suffer from sexual abuse (Stoltenborgh, van IJzendoorn, Euser, & Bakermans-Kranenburg, 2011). However, the true extent of child maltreatment remains unknown partly due to varying definitions and diverse data collection methods (Fallon et al., 2010, Manly, 2005). The measurement of child maltreatment poses a challenge for researchers due to the complexity, definitions, and sensitivity of child maltreatment (Fallon et al., 2010, McGee et al., 1995).
The incidence of child maltreatment has been most frequently estimated using retrospective self-report or proxy-reporting questionnaires (Finkelhor et al., 2005, Tonmyr et al., 2011). While the recall bias of using retrospective data has been one major concern in the area of child maltreatment research, Fergusson, Horwood, and Boden (2011) argued that only very small proportion of reported variance was accounted by recall bias and the larger error variances were due to unreliability of measurement error. The use of parental report to inquire the possibility of parental perpetrators (i.e., Child Abuse Potential Inventory) (Milner, 1989, Parker et al., 1979) is commonly used because of the young age of children, but risks for social desirability and faking good. Existing instruments to measure child maltreatment are limited in the scope of abuse measured and fail to consider abuse severity (English et al., 2005). The scope of the instruments is often limited to physical or sexual abuse, and lacks information on exposure to violence, psychological abuse, and neglect.
A well-designed, cross-cultural, multi-dimensional, psychometrically sound instrument is a prerequisite for international comparisons and knowledge development in child maltreatment research. The International Society for the Prevention of Child Abuse and Neglect (ISPCAN) has developed the ISPCAN Child Abuse Screening Tool (ICAST) using a Delphi study of 40 experts from 31 countries (Runyan et al., 2009). The ICAST is a population-based survey tool with a comprehensive coverage of childhood victimization types across cultures and is available in 7 languages (English, Arabic, Hindi, Malay, Marathi, Russian and Spanish).
Direct inquiry of one's recent experiences is assumed to reduce the bias from recall or the use of a proxy with the gathered information closer to the real situation. To remove any bias associated with caregiver reports, the ICAST-CH (Children's Home Version), a pencil-and-pen survey, is designed for children aged 11–18 years to describe their mistreated experiences at home (Runyan et al., 2009). The internal consistencies of the ICAST-CH have ranged from .69 to .83 for 571 children from Columbia, Iceland, India and Russia. Zolotor et al. (2009) confirmed that the ICAST-CH items were well-designed with minimal ambiguity and easily understood for children aged 11–18.
A Chinese version of the ICAST-CH provides an opportunity to systematically examine the phenomenon of child maltreatment in Chinese communities such as Taiwan. The purpose of this study was to translate ICAST-CH into Chinese (ICAST-CH-C) and to test the cultural and linguistic equivalence of the ICAST-CH-C and establish its psychometric properties.
Section snippets
Design
Translating and establishing the psychometric properties of the ICAST-CH Chinese version (ICAST-CH-C) was conducted in three phases. Permission to translate the ICAST-CH from the ISPCAN was obtained. A 5-step modified back translation procedure (Jones et al., 2001, Wang et al., 2006) was used to translate the English version of the ICAST-CH into Chinese (Fig. 1). In phase 1, two monolingual and two bilingual experts were invited to examine translation equivalence. In phase 2, internal
Translation equivalence test
Translation equivalence testing resulted in inter-rater agreements between the two monolingual speakers of .90–.91 for comparability of language and .89–.94 for similarity of meaning. In language comparability, 98.6% of the scores were above 4 indicating that the wordings of the items and instructions were comparable. Only one instruction statement scored less than 4. The mean language comparability scores were 5.9 for both back-translated versions. For similarity of meaning 97.2% of the scores
Discussion
The results of this study suggest that the ICAST-CH-C is a valid and reliable instrument to measure children's experience of violence at home. This is the first study to validate a cross-cultural, multidimensional instrument designed to measure children's self-reports of maltreatment using a population-based sample of adolescents in Taiwan.
The readability of the ICAST-CH-C items was appropriate for children in Taiwan. The equivalence tests on the content and language of the ICAST-CH-C and
Conclusion
A rigorous back translation process was undertaken to ensure the translation equivalence between the ICAST-CH and ICAST-CH-C. Item analyses determined the appropriateness of each item with comparable internal consistency. Confirmatory factor analysis established construct validity. The ICAST-CH Chinese version provides a valid, reliable, and highly usable measure for identifying childhood victimization and is an appropriate tool to assess the severity and prevalence of child maltreatment in
Acknowledgments
The authors acknowledge the help of the students for responding the questionnaires and the teachers who supported to monitor the process of delivering and testing the questionnaires. The authors also acknowledge the contributions of Min-Ju Chen, Kan-Ju Li, Yu-Ting Lin, and Shih-Han Huang, who participated in the back translation and data collection processes, and Susan Fetzer, whose comments were helpful in improving this work.
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Financial support: Taiwan National Science Council; contract grant number: NSC101-2314-B-006-062-MY3.