An Experimental Neuropsychologist Wishes to Determine Whether a New Drug

question 12

Multiple Choice

An experimental neuropsychologist wishes to determine whether a new drug (X-9) enhances the growth of new, functional brain tissue after maximal brain growth has already been attained after a period of 1 month and 6 months. Five rats were run in a series of three different mazes. All of the mazes were judged to be of equal difficulty. The time in seconds to solve each maze is recorded for each rat across its three mazes. X-9 was given 2 weeks before testing. A prior study statistically demonstrated that rats not given X-9 did not improve their times. Is there any evidence X-9 works? $\begin{array} { l c c c c c c } \hline & { \text { 1 Month } } & & & \text { 6 Months } \\\hline & \text { Trial 1 } & \text { Trial 2 } & \text { Trial 3 } & \text { Trial 1 } & \text { Trial 2 } & \text { Trial 3 } \\\hline \text { Rat 1 } & 10 & 12 & 5 & 4 & 5 & 4 \\\text { Rat 2 } & 15 & 14 & 8 & 6 & 5 & 4 \\\text { Rat 3 } & 14 & 14 & 7 & 6 & 7 & 7 \\\text { Rat 4 } & 9 & 10 & 5 & 7 & 8 & 8 \\\text { Rat 5 } & 12 & 11 & 4 & 7 & 6 & 7 \\\hline\end{array}$
-The CM is

• A)324.967
• B)1936.033
• C)116.033
• D)64.067
• E)68.467

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Definitions:

Sexually Restrictive

Societies or policies that place strict rules and limitations on sexual behavior and expression.

Nuclear Family

A family unit consisting of two parents and their children, living together as a single household.

Foraging Peoples

Societies or communities that rely on the collection of wild plants and the hunting of animals as their primary means of subsistence.

Residence Pattern

A rephrased definition for 'Residence Patterns': The customary spatial arrangements for households or communities, influenced by social, legal, and economic factors, determining where people reside within a society.