Exploring the perspectives of mothers on the clarity of the CDI-III: A qualitative study

The purpose of this study was to augment the validity of the CDI-III by interviewing mothers about their experiences while completing the scale. In this qualitative study, 12 mothers (six in Croatian and six in Slovenian), including eight whose children have typical language development and four whose children have developmental disabilities, were interviewed. Their experiences related to completing the Croatian and Slovenian versions of CDI-III were documented, with the aim of using their recommendations to make the scale clearer for parents. Mothers reported difficulties with the vocabulary section, particularly with emotional and cognitive words, mainly because of their homonymity and semantic similarities. This study shows the importance of consulting parents during the development of the CDI-III to improve its clarity and comprehensibility.