L5- Aims and Hypotheses

Question 1

What is an aim?

Answer 1

• A precise statement about the purpose of the study and what it intends to find out
• should include what is being studied and what the study is trying to achieve

Question 2

What is a hypothesis?

Answer 2

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

Question 3

When are differences known as significant differences?

Answer 3

• differences in dv resulting from manipulation of IV known as significant if it has been statistically shown that differences are unlikely to be due to chance

Question 4

Null hypothesis

Answer 4

• states IV will have no effect on dependent variable

Question 5

Experimental hypothesis

Answer 5

• states IV will have an effect on DV

Question 6

Non-directional Hypothesis: two-tailed

Answer 6

-does not state direction of predicted differences

Question 7

Directional hypothesis:One-tailed

Answer 7

• states direction of the predicted difference between conditions

Question 8

rule of hypothesis

Answer 8

should be operationalized