RM

Question 1

Difference between independent and dependant variables

Answer 1

• Independent variable is the one we can manipulate e.g. amount of water
• Dependent variable is what is measured e.g. how much the plant grows

Question 2

What are the different types of experiments

Answer 2

• Lab experiment; Controlled environment with high control of extraneous variables (something other than IV that can impact DV)
• Field experiment; real life environment but IV is still manipulated
• Natural experiment; where IV is an event or change in the real environment which occurs without manipulation from the researcher
• Quasi experiment; Experiments that have an IV that is based on an existing difference between people (for example, age or gender) and cannot be manipulated

Question 3

Strengths and weaknesses of lab experiments