Understanding Null and Alternate Hypotheses

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Questions and Answers

What is one of the most important elements of the scientific method?

  • Drawing broad conclusions based on a single study
  • Conducting the same study multiple times with different groups (correct)
  • Avoiding replication in research studies
  • Ignoring data analyses in drawing conclusions

If a researcher rejects the null hypothesis, what can they conclude about the phenomenon being studied?

  • The results were based on a single study
  • The phenomenon had a statistically significant effect (correct)
  • There was no effect observed
  • Data analyses were inconclusive

Why is it important for researchers to conduct replication studies?

  • To manipulate data to fit the hypothesis
  • To draw broad conclusions based on a single study
  • To validate and confirm research findings (correct)
  • To avoid data analyses altogether

What is a cardinal sin that researchers should avoid when drawing conclusions?

<p>Going beyond the data (B)</p> Signup and view all the answers

In scientific research, what does replication involve?

<p>Conducting the same study again to validate results (C)</p> Signup and view all the answers

What should researchers be cautious about when interpreting study results?

<p>Drawing broad conclusions without data support (D)</p> Signup and view all the answers

What does the null hypothesis predict?

<p>The groups being studied will not differ significantly (A)</p> Signup and view all the answers

Which hypothesis predicts that there will be a difference between the groups?

<p>Alternative hypothesis (C)</p> Signup and view all the answers

What is the key aspect of conducting a research study?

<p>Measuring the phenomenon accurately and reliably (D)</p> Signup and view all the answers

In the context of research, what does accuracy refer to?

<p>Correctness of measurement (D)</p> Signup and view all the answers

What is reliability related to in research?

<p>Whether the measurement is consistent (D)</p> Signup and view all the answers

After articulating a hypothesis, what is the next step in conducting an experiment?

<p>Designing and conducting a study (B)</p> Signup and view all the answers

What is the guiding principle behind all research conducted in accordance with the scientific method?

<p>Empirical approach (D)</p> Signup and view all the answers

Which of the following is a key component in any scientific investigation?

<p>Observation (C)</p> Signup and view all the answers

What is the next step in the research process after formulating a research idea?

<p>Translating the research idea into an answerable question (A)</p> Signup and view all the answers

Which type of question should be formulated for successful scientific investigation?

<p>Questions answerable through available scientific methods (B)</p> Signup and view all the answers

What stimulates research in response to observations of the world around us?

<p>Observations like apples falling from trees (A)</p> Signup and view all the answers

Which approach emphasizes direct, systematic, and careful observation as a key principle in research?

<p>Empirical approach (C)</p> Signup and view all the answers

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