Aims and Hypotheses

Question 1

what is an aim?

Answer 1

a statement about the purpose of the study and what it intends to find out

Question 2

what is operationalizing variables?

Answer 2

defining the variables in such a way as to make them easy to manipulate and measure

Question 3

what is a hypothesis?

Answer 3

a precise, testable statement about the expected outcome of an investigation

Question 4

what should a hypothesis include?

Answer 4

• iv (operationalized)
• dv (operationalized)
• sample
• task including time scale
• direction or not

Question 5

what is a null hypothesis?

Answer 5

this states that the IV will have no effect on the DV or that any difference will be due to chance

Question 6

what is an experimental hypothesis?

Answer 6

this predicts that the IV will have an effect on the DV

Question 7

what are the 2 types of experimental hypothesis?

Answer 7

directional and non-directional

Question 8

what is a directional (one-tailed) hypothesis?

Answer 8

this states the direction of the predicted difference between conditions

Question 9

what is a non-directional hypothesis?

Answer 9

does not state the direction of the predicted differences between conditions