Coverage error

High school (ages 12+)
Mathematics & Numbers

Name:

Date:

Step 1 · Read the article

Open the article and read it at the level above. Then answer the questions below in your own words.

https://smallwhale.org/articles/coverage-error

Write what each word means, using the article.

Do not copy the article. Write two things you learned, the way you would explain them to a friend.

Answers below are taken from the article’s stored facts, so they match what the student read.

1. What is the consequences?Compromised sample representativeness, inaccurate estimates, and potentially flawed decision-making
2. What is coverage error in a survey?Coverage error happens when the list used to pick people misses some or adds people who shouldn’t be there, so the results can be wrong.
3. Why can using only landline phone numbers cause coverage error?Because many adults only use cell phones or have no phone, so they are left out of the study.

Non-sampling Error: Errors in surveys that are not due to the random chance of sampling, including coverage error.
Sampling Bias: A systematic error introduced by the selection of a sample that is not representative of the population.
Generalizability: The extent to which research findings can be applied to the broader population beyond the sample studied.