Advanced Higher Biology U3. KA.1 a

What is the primary focus of the scientific method?

• To ensure that experiments are not repeatable

• To confirm the null hypothesis in every experiment

• To investigate the world without bias

• To prove theories as facts

What is the first step in the scientific cycle?

• Revising the hypothesis

• Making observations

• Designing an experiment

• Analyzing data

What does a null hypothesis propose?

• There is a significant effect as a result of the experimental treatment

• The experimental treatment is irrelevant

• There is no statistically significant effect as a result of the experimental treatment

• The experimental treatment will prove the theory

What happens if the null hypothesis is rejected?

• The scientific method is invalidated

• The theory is proven

• The experiment is considered a failure

• Further investigation is likely needed

Why is independent confirmation of results important?

• To ensure results are not biased

• To validate the null hypothesis

• To make the experiment easier

• To increase the funding for the research

What is the role of the Journal of Negative Findings?

• To promote unrepeatable experiments

• To share results that do not support the hypothesis

• To discredit failed experiments

• To publish only successful experiments

What is a key aspect of a testable hypothesis?

• It cannot be proven wrong

• It leads to a conclusive theory

• It supports the null hypothesis

• It can be tested through experimentation

How is conflicting data between different labs resolved?

• By proving the theory as fact

• Through careful evaluation or further experimentation

• By accepting the null hypothesis

• By disregarding the data

What does it mean if results cannot be replicated?

• The theory is proven

• The null hypothesis is automatically accepted

• There may have been errors in the design or analysis

• The original experiment was perfect

Why are experiments redesigned?

• To waste more resources

• To disprove the null hypothesis

• To make the experiment more complex

• To obtain reliable and valid results