2 ms·
>The device we asked them to wear has four vibration levels. Half the volunteers (the control group) had the device set to the lowest vibration (level one), and
by daenz 7y ago
>The device we asked them to wear has four vibration levels. Half the volunteers (the control group) had the device set to the lowest vibration (level one), and half had it set to level three (the experimental group). Level 3 is the effective vibration level for motion sickness reduction.
Shouldn't the control group be wearing the device but have no vibrations active?
- mrzimmerman 7y agoI wonder if the subjects knew the device should vibrate, so if it didn't vibrate at all it would have thrown off the test. If not, I agree with you. Or just find subjects that don't know what the devices do so they can just sit on their heads doing nothing.