BR 9/4 and 9/5

Why do scientists use large sample sizes in their studies?

• To reduce the cost of the study

• To ensure their results are accurate and reliable

• To make the study shorter

• To avoid using advanced technology

What is one benefit of using large sample sizes in scientific research?

• It increases the number of random errors

• It makes the study less generalizable

• It helps detect smaller effects and differences

• It reduces the number of participants needed

How do large sample sizes affect the representation of the population in a study?

• They provide a worse representation of the population

• They make the results less generalizable

• They provide a better representation of the population

• They increase the impact of random errors

What does using large sample sizes strengthen in scientific research?

• The cost and duration of the study

• The validity and credibility of the research

• The complexity and difficulty of the study

• The number of random errors and anomalies

What is the impact of including many participants or data points in a study?

• It reduces the impact of random errors and anomalies

• It increases the complexity of the study

• It makes the study less reliable

• It decreases the accuracy of the results