The following statements are wrong but can be corrected by substituting one word or phrase.

The following statements are wrong but can be corrected
by substituting one word or phrase.

 

(See the
instructions in Exercise 1.13.) Identify the incorrect
word or phrase in each of the following statements and
supply the correct word.

a. A researcher examined the effect of the ordinal
variable “gender” on the scale variable “hours of
reality television watched per week.”
b. A psychologist used a between-groups design
to study the effects of an independent variable
(a workout video) on the dependent variable (the
weight) of a group of undergraduate students
before and after viewing the video.
c. In a study on the effects of the confounding variable
of noise level on the dependent variable of
memory, researchers were concerned that the
memory measure was not valid.
d. A researcher studied a population of 20 rats to
determine whether changes in exposure to light
would lead to changes in the dependent variable
of amount of sleep.

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