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You get a cup of coffee from a vending machine each morning. Two mornings in a row, the machine ...

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You get a cup of coffee from a vending machine each morning. Two mornings in a row, the machine ...

You get a cup of coffee from a vending machine each morning. Two mornings in a row, the machine accepts your coins but does not supply coffee. The next day you bring a thermos of coffee with you. Your reaction to the vending machine illustrates that has occurred.

a. discrimination
b. extinction
c. negative reinforcement
d. spontaneous recovery

Ques. 2

Which of the following enhances credibility in action research?

a. large numbers of subjects
b. authentic student work
c. homogenous samples
d. heterogenous samples
e. experimental designs

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