According to Weber's Law, how many grams would have to be added to a 150 gram weight to get a just noticeable difference?

Wilhelm Wundt was both a:

a. psychoanalyst and psychiatrist. b. physiologist and philosopher. c. sociologist and psychiatrist. d. theologian and philosopher.

Cheung, Kam, & Ngan (2011) found that age discrimination toward people over the age of ____ is frequently seen in Hong Kong

a. 45 b. 50 c. 55 d. 60