Professor Tompkins Notices That Rats Run Quickly Through a Maze

question 105

Multiple Choice

Professor Tompkins notices that rats run quickly through a maze when exposed to loud noise. Which of the following is necessary to transform this observation into a two-group experimental design?

• A) multiple comparison conditions where rats run through mazes while exposed to several different volumes of noise
• B) multiple rats to observe running through the maze with loud noise
• C) a control condition where rats run through a maze without exposure to loud noise
• D) a subjective way to measure how fast a rat runs

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Definitions:

Null Hypothesis

A statistical hypothesis that assumes no significant difference or effect exists within a set of given observations or parameters.

Level of Significance

The probability of rejecting the null hypothesis when it is actually true, typically denoted as alpha (α).

Contingency Table

A tabular method for displaying the frequencies of different outcomes in a sample, allowing for analysis of the association between categorical variables.

Null Hypothesis

A statistical hypothesis that assumes no significant difference or effect exists between certain characteristics of a population or dataset.