Higher Human Biology 3.8 Clinical Trials

Vaccines and drugs are subjected to clinical trials to establish their safety and effectiveness before being licensed for use.

• True

• False

What aspect of clinical trials is used to reduce bias in the distribution of characteristics?

• Randomised

• Double Blind

• Placebo-Controlled Protocols

What aspect of clinical trials is used to prevent biased interpretation of the results?

• Randomised

• Double Blind

• Placebo-Controlled Protocols

What aspect of clinical trials is used to ensure valid comparisons?

• Randomised

• Double Blind

• Placebo-Controlled Protocols

What does a large group size help to achieve? (select all appropriate)

• reduce bias in the distribution of characteristics such as age and gender.

• to reduce the magnitude of experimental error

• to determine whether there are any statistically significant differences between the groups

• to prevent biased interpretation of the results

What does a small error bar mean on clinical trial results?

• a smaller deviation from the mean value

• Larger bars mean that there is a wider spread of data from the mean value

What does a small error bar mean on clinical trial results?

• a smaller deviation from the mean value

• that there is a wider spread of data from the mean value

What does a large error bar mean on clinical trial results?

• a smaller deviation from the mean value

• that there is a wider spread of data from the mean value

What aspect of clinical trials means neither the subjects nor the researchers know which group subjects are in?

• Randomised

• Double Blind

• Placebo-Controlled Protocols

What aspect of clinical trials means One group of subjects receives the vaccine or drug while the second group receives a unharmful substance ?

• Randomised

• Double Blind

• Placebo-Controlled Protocols