Literacy Promotion for Latinos Study

Expressive One-Word Picture Vocabulary Test - Fourth Edition (EOWPVT-4) Spanish-Bilingual - Assesses expressive language skills in English and Spanish. This multiple-choice format test consists of 190 items presented in developmental sequence; age-related starting points and cut-off points ensure that only a subset of items is administered. Raw scores are converted into standard scores (M=100, SD=15). Higher scores denote stronger language skills, with possible standard scores ranging between 55 and 145.

Caregiver report of non-verbal communication and early expressive language assessed using the MacArthur Bates Communicative Development Inventories. The Words & Gestures short form is an 89-word vocabulary checklist with separate columns for comprehension and production for children 8-18 months. The Words & Sentences versions contain a 100-word productive vocabulary checklist and a question about combining words for children 16-30 months. Scores are summed and higher scores denote stronger skills.

Child's social-emotional skills were assessed with the Devereux Early Childhood Assessment for Infants and Toddlers (DECA-I/T), which has 2 caregiver-report forms: an infant form (1-18 months) that includes Attachment/Relationships and Initiative subscales, and a toddler form (18-36 months) that includes Attachment/Relationships, Initiative, and Self-Regulation subscales. Scores are standardized on a T-distribution (M=50; SD=10). The Total Protective Factors score is calculated by adding subscale T-scores. T-scores of 60+ indicate an area strength, and T-scores of 40- indicate an area need.

The StimQ2 is a caregiver-reported measure of cognitive stimulation for children that includes domains on the home literacy environment (Reading scale) and responsiveness (Parental Verbal Responsiveness scale). The Reading scale includes 3 subdimensions (Book Reading Quantity, Diversity of Content, Book Reading Quality). Scores on the Reading scale range from 0 to 19. The Parental Verbal Responsiveness scale is composed of two subdimensions (Everyday Routines and Play and Pretend). Scores range from 0 to 15. Higher scores indicate more cognitive stimulation. The Reading scale was completed at baseline, the 9-month follow-up, and the 18-month follow-up. The Parent Verbal Responsiveness scale was completed at the 9-month follow-up and the18-month follow-up.

The DialogPR is a caregiver report measure of shared reading quality. Score range from 0 to 30 with higher scores indicating more interactive reading.

This questionnaire was modified from the National Survey of Early Childhood Health and asks two questions about verbal and physical discipline. Scores range from 0 to 6 and higher scores indicate harsher discipline strategies.

The Parent Reading Belief Inventory is a caregiver reported measure of attitudes about reading with children that included positive affect (scores range from 0 to 33). Higher scores indicate more favorable attitudes and greater knowledge.

Community resource participation was measured via the Survey of Income and Program Participation (SIPP), a series of questions that asks about caregiver and child participation in different types of community resources (e.g. food/nutrition support, income support, childcare assistance, etc.). Possible scores range from 0 to 17, with higher scores indicating more involvement in community resources.

The Physician-Parent Communication Survey is a caregiver reported measure of the caregiver-clinician relationship. We analyzed the interest subscale. The interest subscale includes 6 items are scored from 1 to 8. Scores from each item are averaged; thus total possible scores range from 1-8, with higher scores indicating stronger relationships.

Caregiver report of social needs and stressors was assessed via the Local Inventory of Needs and Knowledge (LINK) survey. Caregivers rate statements on social needs and stress from 0 to 4 with higher scores indicating greater needs and stress. Possible scores range from 0 to 16 with higher scores indicating greater needs and economic stress.

The Parental Stress Scale is an eighteen-item measure that assesses parental stress. Scores range from 18 to 90 with higher scores indicating greater stress.

The ScreenQ is a caregiver report measure of media use in children. Scores range from 0 to 26 with higher score indicating more media use.

Caregiver's report of receipt of literacy promotion components during their previous healthcare visit.

Observation of parent-child interactions during shared reading and free play; observations will be coded based on DialogPR items