Exercise
Form 12: Evaluating Validity of Survey Conclusions
Evaluate the validity of survey conclusions based on sample design and collection methods. Determine whether stated claims are supported by the sample data.
Questions
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MultiChoice
A researcher concludes 'All city residents spend 4 hours daily on computers' based on a survey of 100 people leaving an electronics store. Evaluate this conclusion.
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MultiChoice
A principal surveys a random sample of 50 students from a list of all enrolled students and concludes 60% favor new school uniforms. Evaluate validity.
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MultiChoice
A teacher surveys 3 random students and concludes that the entire class average on a test is 95%. Evaluate this statement.
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MultiChoice
A survey asked: 'Shouldn't the city fix dangerous potholes immediately?' 90% answered yes. The city council concluded 90% support a tax increase. Evaluate validity.
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MultiChoice
Which factor is essential for a survey conclusion to be statistically valid?
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MultiChoice
A town newspaper surveys 150 people at a health club and claims '75% of town residents exercise daily.' Evaluate this claim.
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MultiChoice
A survey uses a random sample of 7th graders to infer reading preferences of 12th graders. Evaluate validity.
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MultiChoice
An online poll on a news website asks readers to vote on tax reform. 5,000 people vote. Is the conclusion about general public opinion valid?
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MultiChoice
A study randomly selects 80 students from a school directory and finds 25% skip breakfast. They infer 25% of the school skips breakfast. Evaluate validity.
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MultiChoice
What happens to survey conclusions if a non-random sample is used?
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MultiChoice
A survey of 60 dog owners at a dog park concludes '80% of town residents favor a new dog park.' Evaluate validity.
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MultiChoice
Which criteria is most important when evaluating whether a generalization about a population is valid?