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. 2021 Dec 16;23(12):e33540. doi: 10.2196/33540

Table 7.

Results from hierarchical linear modeling (N=114 observations).

Variables Model 1a Model 2b

OLSc (clustered SEd,e) P values Mixed modelf,g P values OLS (clustered SEd,h) P values Mixed modelf,g P values
Constant 2.162 (1.013) .04 2.162 (1.851) .24 4.278 (0.898) <.001 4.278 (1.462) .003
AI assistance –0.105 (0.185) .57 –0.105 (0.167) .53 –0.421 (0.192) .03 –0.421 (0.175) .02
Personal technological traits

Technology habit 0.232 (0.104) .03 0.232 (0.137) .09 0.244 (0.0803) .004 0.244 (0.108) .02

Personal innovativeness –0.227 (0.202) .27 –0.227 (0.197) .25 –0.0234 (0.157) .88 –0.0234 (0.155) .89

Computer literacy –0.161 (0.181) .38 –0.161 (0.157) .31 –0.257 (0.111) .02 –0.257 (0.124) .04
Control variables

Female gender –0.202 (0.615) .74 –0.202 (0.575) .73 0.0792 (0.495) .87 0.0792 (0.454) .86

Age: 18-25 years 1.885 (0.892) .04 1.885 (1.473) .20 –0.910 (0.825) .28 –0.910 (1.163) .43

Age: 26-40 years 2.339 (0.782) .004 2.339 (1.294) .07 –0.236 (0.704_ .74 –0.236 (1.021) .82

Age: 41-55 years 2.428 (0.802) .004 2.428 (1.321) .07 0.102 (0.683) .88 0.102 (1.042) .92

Race: African American –0.0232 (0.540) .97 –0.0232 (0.842) .98 0.00592 (0.615) .99 0.00592 (0.664) .99

Race: Asian –0.419 (0.687) .55 –0.419 (1.106) .71 –0.0125 (0.745) .99 –0.0125 (0.873) .99

Race: Native Hawaiian/Pacific Islander 1.067 (0.672) .12 1.067 (1.514) .48 0.708 (0.724) .33 0.708 (1.195) .55

Race: White –0.0132 (0.417) .98 –0.0132 (0.780) .99 0.113 (0.545) .84 0.113 (0.615) .85

Race: Other 0.209 (0.631) .74 0.209 (0.826) .80 0.644 (0.614) .30 0.644 (0.652) .32

Education: Bachelor’s degree 1.880 (0.600) .003 1.880 (1.044) .07 1.584 (0.495) .002 1.584 (0.824) .06

Education: Master’s degree 1.586 (0.738) .04 1.586 (1.128) .16 1.014 (0.586) .09 1.014 (0.890) .25

Education: PhD 0.380 (0.935) .69 0.380 (1.245) .76 –0.158 (0.764) .84 –0.158 (0.982) .87

Occupational status: working full time –0.345 (0.413) .41 –0.345 (0.790) .66 –0.128 (0.439) .77 –0.128 (0.623) .84

Occupational status: working part time 0.332 (0.425) .44 0.332 (0.801) .68 0.326 (0.448) .47 0.326 (0.632) .61

Occupational status: unemployed –0.760 (0.485) .12 –0.760 (1.031) .46 –0.719 (0.698) .31 –0.719 (0.813) .38

Urban –0.451 (0.433) .30 –0.451 (0.512) .38 –0.472 (0.409) .25 –0.472 (0.404) .24

aDependent variable: diagnostic performance.

bDependent variable: clinical task performance.

cOLS: ordinary least squares.

dRobust standard errors are clustered by each participant.

eR2=0.347.

f57 groups (clusters).

gVariance structures were specified using unstructured, identify, and exchangeable, respectively, and results qualitatively remained the same.

hR2=0.412.