In the autonomic nervous system, is to release, as is to replenish

To increase construct validity, an experimenter should

a) Decrease external validity and decrease the number of experimental stimuli. b) Increase external validity and increase the number of experimental stimuli. c) Decrease variability in experimental procedure and decrease the number of experimenters. d) Increase power of the experiment and decrease the internal validity.

Which type of blind person tends to be wakeful in synchrony with sunlight, and why?

a. People blind as a result of cortical damage continue to synchronize to sunlight, because visual input still reaches the brain area that controls wakefulness. b. People blind as a result of cortical damage continue to synchronize to sunlight, because they respond to the gravitational pull of the sun. c. People blind as a result of eye damage continue to synchronize to sunlight, because they respond to light striking the skin. d. People blind as a result of eye damage continue to synchronize to sunlight, because they respond to the gravitational pull of the sun.