Question 1

What is the main difference between an experiment and a survey in scientific investigations?

Accepted Answer

An experiment tests a hypothesis under controlled conditions, while a survey gathers information from a group without manipulation.

Answer

An experiment only involves animals, while a survey can involve humans.

Answer

A survey tests hypotheses, while an experiment does not.

Answer

An experiment is more subjective than a survey.

Question 2

Which of the following is a benefit of conducting an experiment compared to other types of scientific investigations?

Accepted Answer

Experiments allow researchers to establish cause-and-effect relationships.

Answer

Experiments are less time-consuming than surveys.

Answer

Experiments require fewer resources than observational studies.

Answer

Experiments only collect qualitative data.

Question 3

What is a main limitation of using observational studies compared to experiments?

Accepted Answer

Observational studies cannot establish causation between variables.

Answer

Observational studies require less data collection than experiments.

Answer

Observational studies can manipulate independent variables easily.

Answer

Observational studies are always more accurate than experiments.

Question 4

In which type of scientific investigation is it necessary to have a control group?

Accepted Answer

An experiment requires a control group to compare results.

Answer

A survey requires a control group to analyze data.

Answer

None of these types of investigation requires a control group.

Answer

An observational study needs a control group to confirm findings.

Question 5

Why might a scientist choose to conduct a survey instead of an experiment?

Accepted Answer

A survey can gather large amounts of data quickly from many participants.

Answer

Surveys manipulate variables to test hypotheses.

Answer

Surveys are always more scientifically valid than experiments.

Answer

Surveys require less ethics approval than experiments.

Question 6

What advantage does a controlled experiment have over a field study?

Accepted Answer

A controlled experiment can isolate specific variables to observe their effects.

Answer

A controlled experiment requires fewer resources than a field study.

Answer

A controlled experiment allows for more participant interaction than a field study.

Answer

A controlled experiment reflects real-world conditions more accurately than a field study.

Question 7

What is a key characteristic of an experiment that differentiates it from other scientific investigations?

Accepted Answer

Experiments involve the manipulation of independent variables to observe the effects on dependent variables.

Answer

Experiments always take place in a laboratory setting.

Answer

Experiments do not require a hypothesis.

Answer

Experiments are the only type of investigation that uses questionnaires.

Question 8

What is one disadvantage of using experiments in scientific research?

Accepted Answer

Experiments can sometimes create artificial conditions that do not reflect real-world scenarios.

Answer

Experiments cannot be repeated once conducted.

Answer

Experiments provide less reliable data than observational studies.

Answer

Experiments are always quicker to conduct than surveys.

Question 9

What is a common purpose of scientific surveys compared to experiments?

Accepted Answer

Surveys are commonly used to gather opinions or attitudes from a large population.

Answer

Surveys are conducted exclusively in laboratories.

Answer

Surveys primarily focus on collecting quantitative data only.

Answer

Surveys are used to test hypotheses under controlled conditions.

Question 10

What is an important benefit of observational studies compared to experiments?

Accepted Answer

Observational studies can provide data in natural settings where variables are not manipulated.

Answer

Observational studies require a rigorous control group.

Answer

Observational studies are always more conclusive than experiments.

Answer

Observational studies can test cause-and-effect relationships directly.

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