Pilot Testing PREschooler Care, Community Resources, Advocacy, Referral, Education (PRE-CARE)

ADHD-Rating Scale (RS)-IV Preschool Version is a parent-report survey that measures presence and severity of ADHD symptoms for preschoolers. In our study, we used this measure to assess overall ADHD symptom burden. The 18-item validated scale asks parents about the 18 diagnostic criteria for ADHD and how often their child exhibits each symptom. The scale can be used as an overall score (total symptoms) or by subscales (9-item inattention subscale and 9-item hyperactivity subscale). Responses are reported by parents for each item along a 4-point Likert scale from 0 to 3, where 0=rarely or never and 3=very often. For our purposes, we computer the total score for a measure of total ADHD symptom severity, and did not use the subscales. Total scores range from 0 to 54, where lower is less ADHD symptoms/lower symptom severity, and higher scores represent higher symptom severity.

Resource access was measured based on a parent report checklist of resources enrolled. The checklist was based on the Child HealthWatch Survey and modeled after data collected for the clinical trial testing the original social determinants intervention on which this intervention is based. The checklist included 18 resources that families could be enrolled in (for example - healthcare services, mental health care, special education, food benefits, housing assistance, etc), and asked parents to indicate which resources they were enrolled in. The end result is a count between 0 and 18 representing how many resources their family was enrolled in. Higher numbers indicate higher number of resources enrolled, whereas lower numbers indicate lower number of resources enrolled.

The Child Behavior Checklist 1.5-5 (CBCL 1.5/5) is a standardized tool used to assess child psychiatric symptoms for children 1.5-5 years old. The questionnaire obtains caregivers' ratings of 99 problem items along a Likert scale. Parents/caregivers rate each item 0=not true, 1=somewhat or sometimes true, 2=very true or often true of the child (based on the preceding 6 months). Higher scores are correlated with more psychiatric symptoms. Items can be grouped into syndrome scales or the total score can be used to represent overall psychiatric symptom severity. Here we use the total score to represent total psychiatric symptoms. Scores are reported as t-scores, where 50 indicates the population mean with a standard deviation of 10. Higher scores indicate more symptoms. On this scale, scores between 65 and 69 are considered borderline elevated, and scores of 70 or more are considered clinically significant.

Patient Health Questionnaire (PHQ)-9 will be used to measure frequency and severity of parental symptoms of depression within the past two weeks. The measure is the major depressive disorder (MDD) module of the full PHQ, and scores each of the 9 Diagnostic and Statistical Manual criteria of MDD as "0" (not at all) to "3" (nearly every day), providing a 0-27 severity score. Higher scores are correlated with more parental depression.

Adult ADHD Self-Report Scale (ASRS-v1.1) Symptom Checklist will be used to measure parent ADHD symptoms. The measure consists of 18 items matching Diagnostic and Statistical Manual IV criteria for adult ADHD. Items are scored on a 5-point Likert scale, (Never, Rarely, Sometimes, Often, Very Often). The questionnaire is scored based on number of symptoms, leadng to a score between 0 and 18 for the questionnaire. Items 1, 2, 3, 9, 12, 16, 18 are each counted as a symptom (1 point each) if the participant answers Sometimes, Often, or Very Often. Items 4, 5, 6, 7, 8, 10, 11, 13, 14, 15, 17 are each counted as a symptom (1 point each) if the participant answers Often or Very Often. Higher scores indicate higher symptom burden.

The Perceived Stress Scale (PSS) will be used to measure perceptions of levels of stress within the past month using 10 items on a 4 point Likert scale indicating 0 = Never, 1 = Almost Never, 2 = Sometimes, 3 = Fairly Often, and 4 = Very Often. Higher scores [range 0 to 40] are correlated with more perceived stress.

The Parenting Stress Inventory, Short Form (PSI-4-SF) will be used to measure specific levels of stress in relation to taking care of their child and the parent-child system. The scale includes 36 items, each of which uses a 4-point Likert scale from Strongly Disagree to Strongly Agree. The scale includes subscales and a Total score representing total stress on parents, reported here. Possible scores range from 36 to 180. Higher scores are correlated with more parental stress.

The PRE-CARE Feasibility and Acceptability Questionnaire will be used to measure intervention satisfaction using 14 items on a 4 point Likert scale. Items will ask about satisfaction of information and resources provided, length of intervention, perceived helpfulness of intervention, and whether or not they would recommend the program to a parent of a similarly aged child. Higher scores are correlate with greater satisfaction.