Question

An industrial psychologist studying productivity puts workers into a special room to find out      if...

An industrial psychologist studying productivity puts workers into a special room to find out

     if they can assemble computer components more rapidly when the temperature of the room is

     increased or decreased. Which of the following is a possible extraneous variable in this

     experiment?

Select one:

a. the color of the room.

b. the temperature in the room.

c. the number of components assembled.

d. productivity of the workers.

Math   Statistics-And-Probability   
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Answer #1

Solution:

Given: An industrial psychologist studying productivity puts workers into a special room to find out if they can assemble computer components more rapidly when the temperature of the room is increased or decreased.

We have to identify a possible extraneous variable in this experiment.

Extraneous variables are variables that we are not intentionally studying in our experiment or test. Since it does not affect on the dependent variable.

Here temperature of the room and productivity of the workers can affect the speed of components assembled.

Also he number of components assembled affects on speed of components assembled.

But the color of the room does not affect on speed of components assembled , since color of room is not directly related to speed of components assembled.

Thus correct option for a possible extraneous variable is:

a) the color of the room.

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