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. 2020 Sep 28;8(9):e20317. doi: 10.2196/20317

Table 2.

Overall accuracy comparison of error types in the voice-only reporting and voice-button reporting groups.

Error type (correct/incorrect)a Total (N=57), n (%) Voice-only reporting group (n=30), n (%) Voice-button reporting group (n=27), n (%) P value
(#1) Missing the first food names/syllable(s)b




Correct 796 (99.7%) 418 (99.5%) 378 (100.0%) .50

Incorrect 2 (0.3%) 2 (0.5%) 0 (0.0%)
(#2) Missing the last food names/syllable(s)c




Correct 792 (99.2%) 416 (99.0%) 376 (99.5%) .69

Incorrect 6 (0.8%) 4 (1.0%) 2 (0.5%)
(#3) No desirable choicesd




Correct 743 (93.1%) 392 (93.3%) 351 (92.9%) .79

Incorrect 55 (6.9%) 28 (6.7%) 27 (7.1%)
(#4) Missing cooking method(s)e




Correct 766 (96.0%) 416 (99.0%) 350 (92.6%) <.001

Incorrect 32 (4.0%) 4 (1.0%) 28 (7.4%)
(#5) Repeated pronunciationsf




Correct 794 (99.5%) 416 (99.0%) 378 (100.0%) .13

Incorrect 4 (0.5%) 4 (1.0%) 0 (0.0%)
(#6) Incorrect selections in the listg




Correct 771 (96.6%) 404 (96.2%) 367 (97.1%) .48

Incorrect 27 (3.4%) 16 (3.8%) 11 (2.9%)
(#7) Did not select ‘mix’ buttonh




Correct 759 (95.1%) 420 (100.0%) 339 (89.7%) <.001

Incorrect 39 (4.9%) 0 (0.0%) 39 (10.3%)
(#8) Incorrect operationi




Correct 775 (97.1%) 409 (97.4%) 366 (96.8%) .64

Incorrect 23 (2.9%) 11 (2.6%) 12 (3.2%)

aThree items in beverage were not counted as no error types were found. Fourteen out of the 17 food items were included.

b#1 Missing first food name/syllable(s): After verbal reporting, the presented answer list did not include the first food name or the first syllable(s) of the food names.

c#2 Missing last food name/syllable(s): After verbal reporting, the presented answer list did not include the last food name or the last syllable(s) of the food names after voice reporting.

d#3 No desirable choices: After verbal reporting, the presented answer list did not present the desired food name or cooking method.

e#4 Missing cooking method(s): After verbal reporting, the presented answer list did not include the desired cooking method(s).

f#5 Repeated pronunciations: The presented answer list showed repeated pronunciations of food names and/or food attributes after voice reporting.

g#6 Incorrect selections in the list: Participant had trouble accurately tapping the desired choice (click interaction), leading to incorrect selection in the answer list.

h#7 Did not select the ‘mix’ button: Trouble before dish completion (click interaction). The user did not tap the “mix” button to complete dishes with two or three ingredients.

i#8 Incorrect operations: Incorrect operation procedure.