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. 2025 Aug 22;9:e68937. doi: 10.2196/68937

Table 1. Paired t-test comparison between pre- and postsurvey responses. All tests were 2-tailed paired t-tests. Effect sizes (Cohen d) calculated using pooled standard deviation.

Item Survey question t test (df) P value Presurvey, mean (SD) Postsurvey, mean (SD) Cohen d
Q1 Rating own health over the past week −2.10 (29) .04 3.07 (.78) 3.48 (.70) 0.55
Q2 Frequency of feeling happy or satisfied with life over the past week −1.03 (29) .31 4.31 (1.05) 4.57 (.79) 0.28
Q3 Willingness to use health apps −3.63 (29) <.001 3.18 (.79) 3.95 (.82) 0.96
Q4 Perception of how beneficial health wearables or apps have been in their life −2.70 (29) .01 3.34 (.77) 3.86 (.67) 0.72
Q5 Perception of the ease of use of health apps or wearables −4.08 (29) <.001 3.01 (.70) 3.76 (.68) 1.08
Q6 Availability of resources or knowledge about health apps and wearables −2.53 (29) .01 2.92 (.84) 3.44 (.73) 0.67
Q7 Attitude toward using health apps or wearables −2.35 (29) .02 3.34 (.72) 3.78 (.66) 0.64