The point of sensitivity at which the least amount of change in a stimulus gives rise to a change in a sensation is a definition of ____.?
a. ?the just noticeable difference
b. ?the absolute threshold
c. ?Weber's Law
d. ?the differential threshold
e. ?the stimulus change threshold
d
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Which statement is TRUE regarding the independent variable in an experiment?
a. ?It is the variable that the experimenter manipulates. b. ?It is the effect that is a constant. c. ?It is the effect in the experiment. d. ?It is the variable that is allowed to vary on its own.
Charles, who is a male, is color-blind. As you will learn later in the book, this trait is due to a defective gene found on the X chromosome. Based on this, which parent gave him the defective gene?
A. mom B. dad C. one his grandfathers on either side D. his maternal grandfather
According to the information in the article Yoking Smokingabout operant conditioning, what did
researchers find in terms of abstinence throughout the study? (a) the progressive and control groups were both equally abstinent (b) the fixed and control groups were both equally abstinent (c) the progressive group was by far the most abstinent (d) there were no real effects of contingent reinforcement
Autobiographical memories are richer when parents talk about past events in detail and encourage the child to participate in these conversations
Indicate whether the statement is true or false