Question

choose the best answers. 7.13) which three questions should scientists ask when they evaluate the claims of other scientists? how many times was the investigation repeated? do the scientists work for a major university? did the scientists use the latest computer tools to analyze data? were all the variables but one controlled? how big was the sample size? 7.14) which two things should scientists consider when evaluating a scientific claim? whether the evidence is collected from a trustworthy source if there is enough proof to support the claim the personal interests or opinions of the researcher 7.15) what does the term evaluate mean? a. to make an uneducated guess b. to make a careful judgment about something c. to accept something without question d. to ignore evidence and make a conclusion 7.16) what is the process that scientists use to communicate their final conclusions? a. research - data - conclusion b. claim - evidence - opinion c. claim - evidence - reasoning d. claim - research - data 7.17) what is the purpose of collecting evidence in the claim - evidence process? a. to assure the claim is true b. to disprove the claim c. to support or contradict the claim d. to generate new ideas for the claim

Explanation:

• For 7.13: Repeating investigations ensures reliability, controlling variables is key to valid experiments, and sample - size affects data representativeness. Working at a major university or using the latest computer tools isn't essential for claim evaluation.
• For 7.14: Trustworthy evidence sources and sufficient proof are crucial for claim validity. A researcher's personal interests or opinions can introduce bias and should be minimized.
• For 7.15: 'Evaluate' means making a careful judgment, not an uneducated guess, accepting without question, or ignoring evidence.
• For 7.16: Scientists use the claim - evidence - reasoning process to communicate conclusions. Research and data are part of providing evidence and reasoning.
• For 7.17: The purpose of collecting evidence is to support or contradict a claim, not just to prove it true or false, or to generate new ideas for it.

Answer:

7.13: How many times was the investigation repeated?, Were all the variables but one controlled?, How big was the sample size?
7.14: whether the evidence is collected from a trustworthy source, if there is enough proof to support the claim
7.15: B. to make a careful judgment about something
7.16: C. claim - evidence - reasoning
7.17: C. to support or contradict the claim