A form of dementia that results from neurosyphilis is ______

A white shirt reflects more light outdoors than in a dimly lit room; however, it is seen as being equally bright in both places. This demonstrates the role of __________ in perception.

a. brightness constancy b. lightness constancy c. brightness parallax d. visual system limitations

In order to eliminate the third-variable problem in correlational research, which of the following techniques can a researcher employ?

a. Case studies b. Placebo techniques c. Random assignment d. Matched samples