To investigate the effects of a new drug for hyperactivity, one group of children is given this new drug, while the other group is given a placebo. The experimenter has his assistant label the drug and the placebo with letter names so that he will not know which group of children is getting the placebo and which group is getting the new drug until the end of the experiment. This researcher is
using a
a. double-blind experiment to minimize research participant bias and researcher bias.
b. single-blind experiment to minimize observer bias and the observer effect.
c. triple-blind experiment that incorporates random selection and random assignment.
d. placebo effect to maximize the self-fulfilling prophecy.
a
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The Experience Sampling Method (ESM) involves having people carry wristwatch beepers and then beeping them randomly during the day so that they can record their ____
a. thoughts, feelings, and behaviors b. heart rate, pressure, and respirations c. emotional stability and behavioral rating scale d. social readjustment rating scale and behavioral activity
Consider the series of scores 1, 2, 3, 4, 5, 6, 6. An additional score of 100 in this set
would not affect the _____ . a. mean b. median c. mode d. mean, median or mode