Tools for Reducing Inequity in Acute Leukemia (TRIAL): Beta Testing

Defined as the proportion of completed post-tests compared to the overall total of 75. Retention feasibility is defined as ≥ 70% of post-test completions, or 53 completions.

Assessed by the System Usability Scale (SUS), a 10-item measure rated on a 5-point Likert scale from 1 "Strongly Disagree" to 5 "Strongly Agree" with a total scores range of 0 to 100. A higher score represents greater usability.

Defined as the proportion of participants who score ≥68 on the SUS compared to the overall enrollment of 75 participants. Usability of the intervention is defined as >70%, or 53 participants.

Defined as the proportion of enrollees over the number of participants approached for study enrollment.

Defined as the proportion of enrollees over the number of participants eligible for study enrollment.

Assessed by the Seven-Item Knowledge Scale (SIKS) which is comprised of items covering general clinical research statements. Respondents indicate whether a statement is "True," "False," or "Don't know." Scoring is based on the number of correct items (range 0-100). "Don't know" and omitted responses do not count toward the score. A score of 70 or higher indicates adequate knowledge.

Assessed by the Attitudes to Randomized Trials Questionnaire (ARTQ), a 7-item measure with answers of "Yes, "No," or "Do Not Know." The first three items represent willingness to participate in a clinical trial. These items will be assigned a value of 1 for an answer of "Yes" or 0 for an answer of "No or Do Not Know" and summed to obtain overall willingness. Change = (Day 14 or Discharge score - Baseline score)/Baseline score

Assessed by the Trust in Medical Researchers scale (TMRS), a 12-item measure rated on a 5-point Likert scale with answers ranging from 1 "Strongly Disagree" to 5" Strongly Agree" with a total scores range of 12 to 48. A higher score indicates greater trust in medical researchers.

Assessed by the Ottawa Preparation for Decision Making Scale (Prep-DM), a 10-item measure rated on a 5-point Likert scale with answers ranging from 1 "Not at All" to 5 "A Great deal" with a total scores range of 0 to 100. A higher score indicates higher perceived level of preparedness for decision making.

Assessed by the Acceptability of Intervention Measure (AIM), a 4-item measure rated on a 5-point Likert scale with answers ranging from 1 "Completely disagree" to 5 "Completely agree." A total scores range is 4 to 20 with a higher score indicating greater acceptability.

Defined as the proportion of participants that agree to participate in a clinical trial divided by the number of enrollment opportunities. For the purposes of this study, which does not impact clinician behaviors or trial eligibility criteria, a patient who agrees to enroll in a study is someone who is presented with information about a study and agrees to participate and either screen fails or passes screening and consents to participate. An enrollment opportunity is defined as a patient who is identified by the care team as screen eligible for a clinical trial and approached for participation.