Table 4.
Mean and percentage agreement scores for usability survey data (N=89)a.
| Individual statement | Score, mean (SD) | Agreement (n=4), n (%) | Completersb (n=45), mean score (SD) | Noncompleters (n=44), mean score (SD) | P value (difference between completers and noncompleters) |
| I was satisfied with the program | 3.16 (0.56) | 3.16 (79) | 3.21 (0.68) | 3.11 (0.71) | .44 |
| I found the program easy to use | 3.03 (0.69) | 3.03 (76) | 3.15 (0.7) | 2.91 (0.67) | .10 |
| I was able to move through the program easily | 3.49 (0.56) | 3.49 (87) | 3.57 (0.56) | 3.42 (0.61) | .37 |
| I liked the look of the program | 2.87 (0.47) | 2.87 (72) | 2.89 (0.67) | 2.85 (0.71) | .45 |
| I felt I could trust the program | 3.36 (0.55) | 3.36 (93) | 3.26 (0.54) | 3.47 (0.65) | .34 |
| The information included in the program was useful to me | 3.77 (0.53) | 3.77 (94) | 3.84 (0.55) | 3.71 (0.48) | .63 |
aIndividual statements were scored on a scale between 1 and 4 points based on the response to the following: “How much do you agree with each statement?” Responses were measured on a 4-point scale anchored by strongly disagree and strongly agree at either end. Total composite scores out of 24 were calculated by combining scores from each statement. The total composite scores were as follows: mean score, 19.68 (SD 0.56); agreement (19.68/24, 82%); mean completer score, 19.92 (SD 0.61); mean noncompleter score, 19.47 (SD 0.63); and P=.24.
bCompleters were defined as participants who completed at least 4 of the 5 steps of the web-based program.