Table 3.
Pearson correlation of questionnaires and modes. Higher numbers reflect a stronger association between variables.
| Mode | K10a | BSI-18b | AUDIT-3c | |||||||||
|
|
Paper-based r (P valued) | Web-based r (P value) | Chatbot-based r (P value) | Paper-based r (P value) | Web-based r (P value) | Chatbot-based r (P value) | Paper-based r (P value) | Web-based r (P value) | Chatbot-based r (P value) | |||
| K10 | ||||||||||||
|
|
Paper-based | 1 | 0.89 (<.001) | 0.88 (<.001) | 0.89 (<.001) | 0.83 (<.001) | 0.85 (<.001) | −0.1 (.21) | −0.12 (.14) | −0.13 (.12) | ||
|
|
Web-based | 0.89 (<.001) | 1 | 0.87 (<.001) | 0.88 (<.001) | 0.89 (<.001) | 0.86 (<.001) | −0.18 (.04) | −0.19 (.02) | −0.20 (.02) | ||
|
|
Chatbot-based | 0.88 (<.001) | 0.87 (<.001) | 1 | 0.85 (<.001) | 0.84 (<.001) | 0.85 (<.001) | −0.09 (.27) | −0.11 (.17) | −0.12 (.16) | ||
| BSI-18 | ||||||||||||
|
|
Paper-based | 0.89 (<.001) | 0.88 (<.001) | 0.85 (<.001) | 1 | 0.96 (<.001) | 0.96 (<.001) | −0.1 (.22) | −0.12 (.15) | −0.14 (.10) | ||
|
|
Web-based | 0.83 (<.001) | 0.89 (<.001) | 0.84 (<.001) | 0.96 (<.001) | 1 | 0.96 (<.001) | −0.14 (.09) | −0.16 (.06) | −0.18 (.04) | ||
|
|
Chatbot-based | 0.85 (<.001) | 0.86 (<.001) | 0.85 (<.001) | 0.96 (<.001) | 0.96 (<.001) | 1 | −0.15 (.07) | −0.16 (.05) | −0.17 (.04) | ||
| AUDIT-3 | ||||||||||||
|
|
Paper-based | −0.1 (.21) | −0.18 (.04) | −0.09 (.27) | −0.1 (.22) | −0.14 (.09) | −0.15 (.07) | 1 | 0.99 (<.001) | 0.99 (<.001) | ||
|
|
Web-based | −0.12 (.14) | −0.19 (.02) | −0.11 (.17) | −0.12 (.15) | −0.16 (.06) | −0.16 (.05) | 0.99 (<.001) | 1 | 0.99 (<.001) | ||
|
|
Chatbot-based | −0.13 (.12) | −0.20 (.02) | −0.12 (.16) | −0.14 (.10) | −0.18 (.04) | −0.17 (.04) | 0.99 (<.001) | 0.99 (<.001) | 1 | ||
aK10: Kessler Psychological Distress Scale.
bBSI-18: Brief Symptom Inventory-18.
cAUDIT-3: Alcohol Use Disorders Identification Test-3.
dUnadjusted P value; the Bonferroni corrected significance level was computed by dividing the unadjusted P value by the total number of tests; that is, P=.05/45=.0011.