Questions Below Are Based on the Following: (This Is Similar

question 93

Short Answer

Questions below are based on the following: (This is similar to an item in the text at the back of chapter 12 but WITH A DIFFERENT DATA SET). A researcher is interested in whether a certain amphetamine drug will affect the retention of learned behavior among rats as a function of how much time is allowed to elapse between the training and the retention test. Four groups, ten subjects in each group, were randomly selected from a colony of Sprague-Dawley rats. All the rats were given the same amount of training on a simple maze. Groups A and C were given the amphetamine, whereas Groups B and D were given a placebo. Groups A and B were tested for retention immediately following the training, whereas Groups C and D were tested 4 hours later. The retention measure consisted of a scaled score based on how many correct responses the rats would exhibit while running the maze, the higher the score the higher the retention $$\begin{array}{l}\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\text { FACTOR A }\\\begin{array} { l c c } & \begin{array} { c c } \text { Amphetamine } \\\text { Group A }\end{array} & \begin{array} { c } \text { Placebo } \\\text { Group B }\end{array} \\& 15 & 13 \\& 9 & 9 \\& 9 & 12 \\\text { Immediate } & 11 & 7 \\\text { Test } & 10 & 7 \\& 6 & 8 \\& 10 & 10 \\& 12 & 9 \\& 14 & 5 \\& 7 & 11 \\& \text { FACTOR B } & \\& \text { Group C } & \text { Group D } \\& 1 & 8 \\& 5 & 6 \\\text { Delayed } & 2 & 9 \\\text { Test } & 4 & 4 \\& 5 & 4 \\& 6 & 5 \\& 5 & 6 \\& 2 & 6 \\& 6 & 6 \\& 1 & 7\end{array}\end{array}$$
-Calculate the means for each of the four groups (If you graph them you will discover that the two graph lines are not parallel).

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Definitions:

Somatoform

A category of mental disorders characterized by physical symptoms that suggest illness or injury, but cannot be fully explained by a medical condition.

Physician

A professional who practices medicine, which involves promoting, maintaining or restoring health through the study, diagnosis, prognosis, and treatment of disease, injury, and other physical and mental impairments.

Physical Symptoms

Observable or tangible signs of a condition or disease, such as pain, fever, or a rash, in contrast to psychological symptoms.

Conversion Disorder

A mental condition in which a person experiences neurological symptoms, such as blindness or paralysis, without a physical cause, believed to result from psychological stress or conflict.