Dr. Sterling conducted a field experiment in a category C prison to evaluate the effectiveness of a novel Cognitive-Behavioural Anger Management Programme in reducing violent behavior. One group of inmates participated in the Anger Management Programme (Condition X), while a matched control group participated in standard recreational activities (Condition Y).

The prison staff monitored and recorded the number of aggressive outbursts (verbal or physical) for each participant over a six-week period following the intervention.

The results are displayed in Table 2.

Calculate the range for Condition Y.

Table 2

Condition X	Condition Y
Number of aggressive outbursts for those who completed the Anger Management Programme	Number of aggressive outbursts for those who completed the Standard Recreational Programme
2	6
4	11
1	4
3	9
2	3
0	7
3	10
1	5
4	8
2	2
Range = 4	Range =

The prison staff monitored and recorded the number of aggressive outbursts (verbal or physical) for each participant over a six-week period following the intervention.

The results are displayed in Table 2.

Calculate the range for Condition Y.

Table 2

Condition X	Condition Y
Number of aggressive outbursts for those who completed the Anger Management Programme	Number of aggressive outbursts for those who completed the Standard Recreational Programme
2	6
4	11
1	4
3	9
2	3
0	7
3	10
1	5
4	8
2	2
Range = 4	Range =

Research methods and skills

Question 24

Table 2

Markscheme

Research methods and skills

Question 24

Table 2

Markscheme

Research methods and skills

Question 24

Table 2

Research methods and skills Questions

Research methods and skills

Question 24

Table 2

Research methods and skills Questions