Question

chelsea wants to determine the number of people in her school who read news reports on the internet daily. she asks five people in her language arts class. which improvements could chelsea make to her sample to increase the validity of the results? select three options.
□ increase the sample size
□ choose students from different grade levels
□ choose every fourth student in all language arts classes
□ decrease the sample size
□ choose students whose answer to the survey question is predetermined

Explanation:

To increase the validity of survey results, a larger and more representative sample is needed. Increasing sample size gives more data. Choosing students from different grade - levels makes the sample more diverse. Choosing every fourth student in all language arts classes is a form of systematic sampling which can be more representative than just asking a few students in one class. Decreasing sample size reduces data and choosing students with predetermined answers biases the results.

Answer:

A. Increase the sample size
B. Choose students from different grade levels
C. Choose every fourth student in all language arts classes