_____ states that the just noticeable difference of a stimulus is a constant proportion despite variations in intensity.
A) Signal detection theory
B) Fechner's postulate
C) Weber's law
D) Gate-control theory
C) Weber's law
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What kind of twins are no more genetically similar than two siblings born at different times?
A. dizygotic twins B. monozygotic twins C. sperm-based twins D. ovum-enhanced twins
According to Shulman & Kipnis (2001), intimacy, trust, and ____ become important features of romantic relationships for older adolescents
a. popularity b. support c. sexual behavior d. peer approval
Describe three key structural features of groups
What will be an ideal response?
In order to demonstrate the extent to which classical conditioning can be a factor in the development of a serious phobia, John Watson and Rosalie Raynor conducted a study where ______
a. ?a young boy was taught to fear a white rat b. ?a young adult male was taught to fear cashiers in the supermarket c. ?an adolescent girl was conditioned to fear her school teachers d. ?a middle-aged woman was conditioned to fear Santa Claus