Quantitative and Qualitative Evidence in Claims

Which of the following is an example of quantitative data?

• "The students felt more confident after completing the test."

• "The average score on the test was 85%."

• "The teacher said the students showed improvement."

• "Many students said they liked the test format."

Which statement is an example of qualitative data?

• "85% of people surveyed reported feeling more productive after using the app."

• "The app was downloaded 50,000 times in the first week."

• "Users described the app as easy to navigate and helpful."

• "The average rating of the app is 4.5 stars."

A claim states, "Using flashcards improves memory retention by 40%." Which piece of evidence would be considered quantitative?

• "Many students said they found flashcards helpful for studying."

• "Participants who used flashcards recalled 40% more information during the test."

• "Students reported feeling more confident using flashcards."

• "Teachers noticed students were more engaged when using flashcards."

Which of the following would be the best qualitative evidence for the claim: "Listening to music reduces stress"?

• "60% of listeners reported a drop in stress levels after listening to music."

• "Listeners said they felt more relaxed and calm after listening to their favorite songs."

• "Heart rate and blood pressure numbers decreased in participants who listened to music."

• "Stress hormone levels were reduced by 25% after a music session."

Which of the following qualitative statements would refute the claim: "This chair provides excellent back support"?

• "65% of users rated the chair 4 out of 5 stars for comfort."

• "Several users said they experienced no improvement in back pain after using the chair."

• "Data showed that users spent 30% less time sitting due to discomfort."

• "On average, users reported a 10% decrease in lower back pain."

A researcher is evaluating the claim: "Drinking 8 glasses of water a day improves skin hydration." Which would be an example of quantitative data supporting the claim?

• "After drinking more water, people said their skin felt softer and healthier."

• "Many participants reported glowing skin after drinking more water."

• "A lot of participants said they noticed a positive difference in their skin."

• "Participants who drank 8 glasses of water had a 20% increase in skin hydration after one week."

Which of the following is an example of qualitative evidence?

• "50% of participants reported improved memory after using the new learning app."

• "The average test scores increased by 20% after using the app."

• "Participants described feeling more engaged and focused during learning sessions."

• "90% of users completed the program within 6 weeks."

A company claims that "90% of users sleep better after using their mattress." Which of the following is quantitative evidence for this claim?

• "A sleep study found that 90% of participants reported longer and more restful sleep after two weeks."

• "Customers stated they felt well-rested and refreshed after sleeping on the mattress."

• "Many users described a significant improvement in their sleep quality."

• "Users shared their positive experiences of waking up with less back pain."

Which of the following is an example of qualitative data about a restaurant’s customer service?

• "75% of customers rated the service 4 stars or higher."

• "Customers described the staff as friendly and helpful."

• "The average wait time for service is 10 minutes."

• "The restaurant served 120 customers during lunch hours."

Which of the following quantitative evidence would best support the claim: "This study guide improves test scores by 20%"?

• "Test scores increased by an average of 22% among students who used the guide."

• "Many students said they preferred using the guide to other methods."

• "In a survey, 90% of students said they found the guide helpful."

• "Students reported feeling more confident after using the study guide."