The Benefits of Early Book Sharing (BEBS) for child cognitive and socio-emotional development in South Africa: study protocol for a randomised controlled trial

Table 2 Study outcomes. Description of data: list of all study outcomes

Outcome	Measure
Primary outcomes
Child aggression	Child Behavior Check List (CBCL) aggression subscale
Child aggression	Scores from coded videos of a prohibition and compliance task
Child prosocial behaviour	Strengths and Difficulties Questionnaire, prosocial subscale
Child prosocial behaviour	Prosocial helping task
Child language	MacArthur-Bates Communication Development Inventory
	Peabody Picture Vocabulary Test
	Expressive One Word Picture Vocabulary Test
	Bayley Scale of Language Development
Child attention	Early Child Vigilance Task
Secondary outcomes
Child social understanding	Wellman and Liu Theory of Mind Scale
Child social understanding	Emotion recognition task
Parental sensitivity and reciprocity	Direct observation of parent and child in free-play, clean-up task, and book-sharing
Parental discipline	Discipline and Violence Self-report Questionnaire
Parental discipline	Direct observation during the prohibition and compliance tasks
Parental mental state talk	Direct observation during interactions involving book-sharing and a narrative cartoon explanation task
Exploratory outcomes
Home language environment	LENA digital recording device worn by the child for a full day
Emotion recognition	Functional Infared Thermal Imaging (fIRT)
Moderators
Parental stress	Parenting Stress Index (short form)
Caregiver mental health	Patient Health Questionnaire-9
Intimate partner violence	WHO questionnaire on health and domestic violence

ISSN: 1745-6215