Question

students decide to test different brands of paper towels ability to soak up a liquid. what is the independent variable in that experiment?
paper towel brands
amount of liquid
amount of time left soaking
type of liquid used
question 6
1 pts
all of the following statements are anecdotal (not scientifically accepted) evidence except
dr. debellard’s insistence that you acquire some of her personal tapeworm for a bowel disorder.
dr. stein’s research on bowel disorders published in a peer - reviewed scientific journal.
dr. teitell’s statement in his infomercial that, “i believe my personal cure for bowel disorders (daily enemas) is more effective than any drug i’ve ever prescribed in 20 years of practicing medicine.”
dr. thomas’s best - selling book, which includes a recipe for his “famous bran muffins” that he claims cured his bowel disorder.
dr. pepper’s website suggests that you try the snl “colon blow cereal” that cured his bowel problems.

Explanation:

First Question (Independent Variable in Paper Towel Experiment)

The independent variable is the factor changed by the experimenter. In this experiment, students test different paper towel brands, so the independent variable is the paper towel brands. The other options (amount of liquid, time soaking, type of liquid) are either controlled variables or not the main factor being manipulated.

Anecdotal evidence is personal, untested, or non - peer - reviewed claims. Dr. Stein’s research is published in a peer - reviewed scientific journal, which means it has undergone scientific scrutiny and is not anecdotal. The other options involve personal claims, infomercial statements, or claims from non - peer - reviewed sources (like a book or website suggestion, or a personal insistence).

Answer:

A. Paper towel brands

Question 6 (Anecdotal Evidence Exception)