What is the relationship between the motor neuron axons and muscle fibers?
a. Each axon innervates only one muscle fiber
b. The more muscle fibers a single axon innervates, the more precise the movements.
c. The more axons which innervate a single muscle fiber, the more precise the movements.
d. The fewer muscle fibers a single axon innervates, the more precise the movements.
d
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Explain the difference between random sampling and random assignment, and indicate how these procedures affect a study's internal and external validity
What will be an ideal response?
All experiments must have either a no-treatment control group or a placebo control group
a. True b. False Indicate whether the statement is true or false
According to the doctrine of specific nerve energies , _______
a. sensory receptor release different types of energy. b. sensory nerves are released by sensory neurotransmitters. c. we see with our eyes and hear with our ears. d. we hear with the brain, not the ears.
Getting a person to make a small commitment in order to get that person to make a larger commitment later is known as
a. the door-in-the-face technique. b. the foot-in-the-door technique. c. the sleeper effect method. d. the supersales technique.