The standard deviation of the population of individually measured adult
male spine lengths is 1.02 inches. A random sample of 25 men is selected and
the mean spine length was recorded at 30 inches.
a. Calculate the standard error of the mean.
b. Test the hypothesis that this sample could be representative of the general
population of adult males whose mean spine length is known to be 28 inches.
a SEm= .20
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What type of object is a common basis for a phobia? a. Something that we encounter frequently almost every day
b. Something that causes injuries to many people today. c. Something associated with unpredictable, uncontrollable danger. d. Something that people encounter in early childhood.
Through classical conditioning, Alyce has developed a fear of mice. She also shows a fear response to gerbils and hamsters. Alyce is demonstrating
a. stimulus generalization. b. stimulus discrimination. c. spontaneous recovery. d. extinction. e. reconditioning.
A major contribution of the humanistic perspective is its ____
a. insistence on rigorous empirical studies b. primary focus on improving the mental health of persons with serious disorders c. positive view of the individual d. emphasis on blocked instinctual forces
In his studies of memory, Ebbinghaus wanted to be sure he would not be swayed by prior learning, so he used
a. common everyday words. b. nonsense syllables. c. short, easily pronounced words. d. individual letters.