Question

scientific claims should be questioned if 1) the data are based on samples that are very large 2) conclusions follow logically from the evidence 3) peer review was used to examine the claims made by scientists 4) the experimental results cannot be repeated by other scientists

Explanation:

To determine when scientific claims should be questioned, we analyze each option:

• Option 1: Large sample sizes generally strengthen claims, so this is not a reason to question.
• Option 2: Logical conclusions from evidence support claims, not a reason to question.
• Option 3: Peer review is a standard quality - control process in science, so it supports the validity of claims, not a reason to question.
• Option 4: In science, the ability to repeat experimental results is crucial for validating a claim. If other scientists cannot repeat the results, the claim's validity is in doubt, so this is a reason to question scientific claims.

Answer:

1. the experimental results cannot be repeated by other scientists