2.4.1. Measures
cancer
CANCER, HYPERTENSION
The Self-Report Altruism Scale. The Self-Report Altruism Scale is a 20-item survey. Participants rate their frequency of altruistic behaviors using the categories never, once, more than once, often, and very often. The measure has high internal consistency (Cronbach alpha = 0.89) [Research Attitude Questionnaire. The Research Attitude Questionnaire is an 11-item survey, rated on a 5-point Likert scale (1 = strongly disagree to 5 = strongly agree), that assesses respondents support for and value of research (Cronbach alpha = 0.75) with higher scores representing a more favorable attitude toward research [Clinical Trials Vignette. Participants were presented with three clinical trial vignettes on diet, hypertension, and cancer. Participants were asked to rate their willingness to participate in a hypothetical clinical research trial. Responses were dichotomized into categories of “unwilling to participate” (responses 1, 2, or 3) and “willing to participate” (responses 4 or 5). All Aspects Health Literacy Survey. The All Aspects Health Literacy Survey (AAHLS) is a 13-item health literacy tool developed to understand an individual’s understanding of basic health information. Items are measured on a 3-point Likert scale with responses ranging from “rarely” to “often”; “Yes, definitely” to “Not really”; and “yes” “no”. The measure has adequate reliability (Cronbach’s alpha = 0.74). The reliability of the subscales was inconsistent [eHealth Literacy Scale. The eHealth Literacy Scale (e-HEALS) is an 8-item scale that assesses an individual’s ability to search, combine, evaluate, and use health information from electronic sources, including the internet [Health Trials Survey. The Health Trials Survey is a 6-item measure that measures attitudes towards participation in a clinical trial. Respondents rated items using five response categories, from “Strongly Agree” to “Strongly disagree”.Socio-demographic survey. We collected participant age, gender, race/ethnicity, marital status, education level, employment status, income, medical care, past year major stressors, and substance use.