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Table 2 Comparison of the mean in knowledge, attitudes, and intentions pre-post using paired samples t-test

From: Design and implementation of a massive open online course on enhancing the recruitment of minorities in clinical trials – Faster Together

Item Pre-test Score
Mean (SD)
Post-test Score
Mean (SD)
Mean Difference (95% bootstrap CI)
Knowledge (# Correct answers out of 28 total) 15.54 (3.55) 18.92 (1.50) 3.39 (1.69 to 5.46)
Attitudes (Individual Items, Likert scale)
 I believe that improving clinical trials education with potential participants will improve minority clinical trial accrual 4.85 (0.38) 4.92 (0.28) 0.77 (−0.15 to 0.39)
 I believe that improving clinical trials retention practices will improve retention with our participants from ethnic/racial minority groups 4.69 (0.48) 4.92 (0.28) 0.23 (−0.08 to 0.54)
 I believe that building relationships with community groups can improve clinical trial participation among ethnic/racial minority groups 4.92 (0.28) 4.92 (0.28) 0.00 (−0.23 to 0.23)
 I believe that clinical trial education programs in the community may enhance clinical trials participation among racial and ethnic minority groups. 4.92 (0. 28) 4.92 (0. 28) 0.00 (−0.23 to 0.23)
 I believe that better communication with community providers may enhance clinical trials referral. 4.92 (0. 28) 4.92 (0. 28) 0.00 (−0.23 to 0.23)
Intentions (Individual Items, Likert scale)
 I intend to work with other members of the team to improve the ways we educate potential participants. 4.77 (0.45) 4.69 (0.48) −0.08 (− 0.31 to 0.15)
 I intend to work with other members of the team to improve our strategies around retention. 4.69 (0.48) 4.69 (0.48) 0.00 (−0.31 to 0.31)
 I intend to work with other members of the team to institute new ways to partner with community groups. 4.54 (0.66) 4.77 (0.44) 0.23 (−0.08 to 0.69)
 I intend to work with other members of the team to institute new ways to institute clinical trial education programs in the community. 4.54 (0.66) 4.69 (0.48) 0.15 (−0.15 to 0.54)
 I intend to work with other members of the team to institute new ways to increase referrals by community providers. 4.38 (0.87) 4.69 (0.48) 0.31 (−0.08 to 0.69)
  1. SD Standard deviation, CI Confidence interval