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. 2020 Oct 23;22(10):e19840. doi: 10.2196/19840

Table 1.

One-sample t tests summarizing the measures that are significantly different from zero (baseline) for both test periods (immediate and late) and exposure duration.

Measure and exposure duration Before to immediately after VRa Before to 40 min (late) after VR


t test (df) P value Cohen d t test (df) P value Cohen d
Accommodation

10 min 2.824 (35) .008 0.471 0.137 .89 0.023

50 min 3.709 (35) <.001 0.618 1.804 .08 0.301
Convergence

10 min 2.205 (35) .03 0.367 1.172 .25 0.195

50 min 3.494 (35) .001 0.582 1.324 .19 0.221
RTb (decision)

10 min 1.457 (35) .15 0.243 −0.541 .59 −0.090

50 min 1.649 (35) .11 0.275 0.602 .55 0.100
RT (movement)

10 min −2.725 (35) .01 −0.454 −1.028 .31 −0.171

50 min −1.206 (35) .24 −0.201 −0.714 .48 −0.119
Total SSQc

10 min 3.427 (35) .002 0.571 −0.627 .54 −0.105

50 min 4.765 (35) <.001 0.794 0.357 .72 0.060
Nausea

10 min 1.063 (35) .295 0.177 −1.655 .11 −0.276

50 min 3.630 (35) <.001 0.605 −0.373 .71 −0.062
Oculomotor

10 min 3.140 (35) .003 0.523 −0.475 .64 −0.079

50 min 4.639 (35) <.001 0.773 0.094 .93 0.016
Disorientation

10 min 3.894 (35) <.001 0.649 1.000 .32 0.167

50 min 4.049 (35) <.001 0.675 1.136 .26 0.189

aVR: virtual reality.

bRT: reaction time.

cSSQ: simulator sickness questionnaire.