Chapter 1 Investigating Human biology

Question 1

What is the purpose of an controlled experiment?

Answer 1

The purpose is to investigate the relationship between variables.

Question 2

Define ethics

Answer 2

Ethics are a set of morals principles and values.

Question 3

What are the 5 ethics that satisfy an ethically sound investigation?

Answer 3

-Voluntary participation: participants should not be pressured into taking part of the investigation
-Informed consent: After all information of the investigation is given, written consent is sought after.
-Risk of harm: Risk of harm should be minimised.
-Confidentiality: The identities of the participants will not be revealed except to the people directly involved in the study.
-Anonymity: identities of the participants will not be revealed to anyone.

Question 4

Define validity

Answer 4

Validity refers to when an experiment tests what it is suppose to test.

Question 5

What improves validity?

Answer 5

Controlling more variables

Question 6

Define accuracy

Answer 6

Accuracy refers to how close or true the results are in an experiment

Question 7

What improves accuracy?

Answer 7

Using the right tools and equipment

Question 8

Define reliability

Answer 8

Reliability refers to how similar the results are per trial

Question 9

What improves reliability?

Answer 9

increasing the number of trials

Question 10

Define qualitative and quantitative

Answer 10

Qualitative: Descriptive data
Quantitative: Numerical data