Video Interaction Project in Brazil

Semi-structured interviews (approximately 40-60 min) conducted. Caregivers will share their opinions about activities, provided materials, barriers/facilitators to participation and use of intervention strategies in the home. Interviews will be audio recorded, transcribed, and translated from Brazilian Portuguese to English. Guides for the semi structured interviews have been developed based on previous studies and theoretical frameworks.

StimQ - Infant survey will be used to evaluates reading, teaching, responsivity with the caregivers through a video call. The survey consist of 4 subscales, which are summed together for a total score (StimQ2-I range 0-42)

Adult-Child Interactive Reading Inventory (ACIRI) assesses both adult and child behaviors in three categories that research has identified as critical: Enhancing Attention to Text, Promoting Interactive Reading and Supporting Comprehension, and Using Literacy Strategies. An observational measure where caregivers and children are observed and given an score (3 = most of the time, 2 =some of the time , 1 = infrequently, 0= not at all)

The Parent Reading Belief Inventory (PRBI) is a self-reporting instrument that assess parents' beliefs about the frequency, quality, and importance of their child's literacy activities. The 42-item instrument provides seven subscales: positive affect, verbal participation, resources, teaching efficacy, knowledge base, environmental input, and reading instruction.

The Edinburgh Postnatal Depression Scale (EPDS) is a questionnaire originally developed to assist in identifying possible symptoms of depression in the postnatal period.It is a 10-item questionnaire where women are asked to answer each question in terms of the past seven days. A score is calculated by adding the individual items for each question, the a score of 10 or above is commonly considered "possible depression."

The Perceived Stress Scale (PSS-10) is a 10-item questionnaire used to assess stress levels in young people and adults aged 12 and above. Respondents are asked how often they felt a certain way on a five-point scale from 'never' to 'very often'. (Never = 0, Almost never = 1, Sometimes = 2, Fairly often = 3, Very often = 4).The PSS score is then obtained by summing across all items. Higher scores indicate higher levels of perceived stress.

Development of the Dimensional Inventory of Child Development Assessment (IDADI) assess child development of children from zero to 72 months of age through parental reports covering Cognitive, Motor (Gross and Fine), Communication and Language (Receptive and Expressive), Socioemotional and Adaptive Behavior domains. A three-point Likert scale was established where: yes (2-points); sometimes (1-point) ; and no (0-point) to indicate if the skill was mastered.