For each study below name the dependent variable, independent variable, and its levels.
a. Thirty females were divided into three equal groups. One group was taught how to concentrate on their breathing. A second group was told to imagine that the day was very hot and that they would be allowed to place their hand in cool water. The third group was told nothing. All three groups placed their right hand in buckets of ice water for one minute. Afterward, they rated their pain on a scale of one to seven.
b. During Rapid Eye Movement (REM) sleep, muscle tone is lost. For a rat sleeping on a 22-inch diameter platform over water, REM sleep is interrupted by falling into the water. With this technique you can deprive rats of REM sleep. Two groups of rats were deprived of REM sleep for zero or 72 hours. Afterward they learned to choose one arm of a T maze for food reinforcement. Each rat was given 30 trials in the T maze and its percentage of correct responses was calculated.
c. Four groups of males were monitored during their sleep one night for the number of minutes of Rapid Eye Movement (REM). During the seven hours before sleep one group had seen six hours of TV, one had seen four hours, one had seen two hours, and one group had seen no TV.

Question

Quizplus · Accepted Answer

The Answer of For each study below name the dependent variable, independent variable, and its levels.
a. Thirty females were divided into three equal groups. One group was taught how to concentrate on their breathing. A second group was told to imagine that the day was very hot and that they would be allowed to place their hand in cool water. The third group was told nothing. All three groups placed their right hand in buckets of ice water for one minute. Afterward, they rated their pain on a scale of one to seven.
b. During Rapid Eye Movement (REM) sleep, muscle tone is lost. For a rat sleeping on a 22-inch diameter platform over water, REM sleep is interrupted by falling into the water. With this technique you can deprive rats of REM sleep. Two groups of rats were deprived of REM sleep for zero or 72 hours. Afterward they learned to choose one arm of a T maze for food reinforcement. Each rat was given 30 trials in the T maze and its percentage of correct responses was calculated.
c. Four groups of males were monitored during their sleep one night for the number of minutes of Rapid Eye Movement (REM). During the seven hours before sleep one group had seen six hours of TV, one had seen four hours, one had seen two hours, and one group had seen no TV.

For Each Study Below Name the Dependent Variable, Independent Variable