Experimental methods

Question 1

what is the aim

Answer 1

a general statement of what the researcher intends to investigate; the general purpose of the study

Question 2

what is the hypothesis

Answer 2

a clear, precise, testable statement that states the relationship between variables to be investigated- stated at the outset of the study

Question 3

what are the two types of hypothesis

Answer 3

directional and non directional

Question 4

what is a directional hypothesis

Answer 4

this states the expected direction of your results

Question 5

what is a non-directional hypothesis

Answer 5

this states that there will be a difference but does not state the direction

Question 6

how do you know what hypothesis to select

Answer 6

• directional- existing evidence showing a particular outcome
• non-directional- no previous research and may be uncertain which way your experiment may go