A forensic psychologist investigated the effectiveness of a restorative justice programme compared to standard custody. A sample of ten offenders in each condition was assessed on an empathy scale (ranging from 10 to 90, where higher scores indicate higher levels of empathy).

Table 1: Empathy assessment scores in Restorative Justice and Control groups

Restorative Justice Group	Empathy rating	Control Group	Empathy rating
1	38	1	45
2	46	2	23
3	24	3	75
4	18	4	37
5	42	5	67
6	33	6	64
7	28	7	45
8	27	8	82
9	39	9	57
10	53	10	46
Median		Median

Complete Table 1 by calculating the median for the two groups. Show your working. Why did the psychologist use the median as a measure of central tendency rather than the mean?

Table 1: Empathy assessment scores in Restorative Justice and Control groups

Restorative Justice Group	Empathy rating	Control Group	Empathy rating
1	38	1	45
2	46	2	23
3	24	3	75
4	18	4	37
5	42	5	67
6	33	6	64
7	28	7	45
8	27	8	82
9	39	9	57
10	53	10	46
Median		Median

Complete Table 1 by calculating the median for the two groups. Show your working. Why did the psychologist use the median as a measure of central tendency rather than the mean?

Data handling and analysis

Question 14

Table 1: Empathy assessment scores in Restorative Justice and Control groups

Markscheme

Data handling and analysis

Question 14

Table 1: Empathy assessment scores in Restorative Justice and Control groups

Markscheme

Data handling and analysis

Question 14

Table 1: Empathy assessment scores in Restorative Justice and Control groups

Data handling and analysis Questions

Data handling and analysis

Question 14

Table 1: Empathy assessment scores in Restorative Justice and Control groups

Data handling and analysis Questions