Final answer:
Supplemental tests are typically used for individual assessment and provide more detailed insights that might be lost in group testing. Experiments can be done on humans under ethical guidelines. Larger sample sizes are better in scientific experiments because they give more reliable results.
Step-by-step explanation:
When it comes to the statement that supplemental tests are recommended for individual testing and not group testing, the context is required to definitively label this as true or false. However, speaking generally in the realm of scientific experimentation:
- Supplemental tests are often used to focus on individual differences or conditions that may not be apparent in group settings.
- Group testing can obscure individual variations due to averaging or the effects of group dynamics.
Concerning the provided statements:
- The statement that experiments cannot be done on humans is generally false. Ethical human experimentation is a core component of medical and psychological research, but it is governed by strict ethical standards.
- The statement that larger sample sizes are generally better than smaller ones in scientific experiments is true. Larger sample sizes increase the reliability and validity of the results, reducing the likelihood of statistical error.
- Regarding control groups, it is true that the control group must be as identical as possible to the test group except for the variable being tested, as this helps isolate the effects of that specific variable.