Question

4-A new publisher of educational texts reported: "We had teachers use our texts in six Algebra I classes and other teachers use another leading text in six Algebra I classes. We tested the students at the end of the semester and students using our text scored 11 points higher."
A) Consider possible confounding variables. B) Consider the source. C) Consider the population. D) Consider the sampling method.

5- To determine the percent of wives in "happy" marriages, a psychologist at a convention dinner asked the female members of couples if she was married and, if so, happily. She reported that 89% of married women are in "happy" marriages
A) Consider the presentation of the results. B) Consider the source. C) Consider the setting. D) Consider the sample.

6- To determine the average amount of physical exercise of the members of the Eureka College faculty, a student randomly selected a sample of 20 faculty and asked them to check a form rating daily exercise from "(1) very little, (2) some, (3) moderate, (4) quite a bit, (5) extensive." The student reported that, on average, a Eureka College faculty member exercises moderately each day.
A) Consider possible confounding variables. B) Consider the source. C) Consider the sampling method. D) Consider the measurement of the variable of interest.

Answer 1

ANSWER:

4)

Option A is correct.

Consider possible confounding variables.

Because confounding variable is an outside influence that changes the effect of a dependent and independent variable.

5)

Option D is correct.

Consider the sample.

6)

Option D is correct.

Consider the measurement of the variable of interest.