Biases in Scientific Research Quiz

Selection bias occurs when the individuals or groups participating in a study are not representative of the larger population of interest.

• True

• False

Confirmation bias in scientific research refers to the tendency to interpret results in a way that contradicts the researcher's initial hypothesis.

• True

• False

Experimenter bias can only occur during the data analysis phase of a scientific study.

• True

• False

Which of the following is the best definition of confirmation bias in a scientific context?

• The tendency to choose participants for a study based on their availability.

• The tendency to favor information that aligns with pre-existing beliefs or hypotheses.

• The tendency for researchers to unintentionally influence the outcome of a study.

• The tendency for published studies with statistically significant results to be more visible.

A researcher studying the effectiveness of a new teaching method only surveys students who volunteered to participate in the pilot program. This is an example of:

• Experimenter bias

• Confirmation bias

• Selection bias

• Publication bias

In a drug trial, researchers know which participants are receiving the actual drug and which are receiving a placebo. This lack of blinding could lead to:

• Random error

• Systematic error

• Experimenter bias

• Measurement error

Publication bias can skew the overall understanding of a scientific topic because:

• It leads to an overemphasis on negative results.

• It ensures all research findings, regardless of significance, are widely disseminated.

• It often results in statistically significant findings being more likely to be published.

• It primarily affects the methodology section of research papers.

A research team believes their new weight-loss drug is effective. During data analysis, they focus heavily on the positive results from a small subgroup of participants while downplaying less favorable data from the larger group. This is an example of:

• Random sampling

• Confirmation bias

• Double-blind study design

• Statistical power

Which of the following strategies is LEAST likely to help minimize experimenter bias?

• Using standardized protocols for data collection.

• Ensuring the researchers are aware of the participants' group assignments.

• Employing double-blind study designs.

• Automating data collection where possible.

To critically evaluate a scientific claim, one should primarily focus on:

• The popularity of the research findings on social media.

• The methodology and evidence supporting the claim.

• The number of researchers involved in the study.

• The funding source of the research.

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NGSS.HS-ETS1-3

NGSS.HS-PS4-4