4.2.4 variables

Question 1

define the term ‘null hypothesis (2).

Answer 1

a prediction (1)
that the findings will not be statistically significant (2).

Question 2

give an example of a null hypothesis (2).

Answer 2

there will not be a significant relationship (1) between time of day and
concentration in lessons(2). IDENTIFY CO-VARIABLES

Question 3

explain why a psychologist would accept the null hypothesis. (2)

Answer 3

the findings from the inferential test (1)
did not reach significance at the minimum accepted level of p<0.05 (2).

Question 4

define what is meant by a ‘directional hypothesis’. (2)

Answer 4

a testable statement (1) predicting the direction of difference between the conditions (2).