DClinPsy Portfolio Volume 1 of 3 - University of Hertfordshire ...

Table 18 - Descriptive statistics for the depression and anxiety clinical scales for the EDR
groups
Eating Disorder Risk Category Depression Anxiety
Low
N
Mean (Std error)
Median
SD
Min-Max
Skewness (Std error)
Moderate
N
Mean (Std error)
Median
SD
Min- Max
Skewness (Std error)
High
N
Mean (Std error)
Median
SD
Min-Max
Skewness (Std error)
68
4.22 (0.43)
3
3.54
0-15
1.08 (0.29)
17
4.53 (0.60)
4.00
2.45
1-11
1.40 (0.55)
11
6.09 (1.22)
5.00
4.06
1-14
0.71 (0.66)
68
8.37 (0.46)
8.00
3.75
2-21
0.84 (0.29)
17
9.82 (0.76)
9
3.15
4-17
0.53 (0.55)
11
12 (1.18)
12
3.90
6-18
-0.16 (0.66)
As can be seen from Table 18 above the high EDR group had higher mean scores
regarding both depression and anxiety (mean depression 6.09 and anxiety 12) as
compared to the moderate (mean depression 4.53 and mean anxiety 9.82) and low EDR
groups (mean depression 4.22 and mean anxiety 8.37). This was further tested using
inferential statistics in order to test the hypothesis that those in the high EDR group
would have higher levels of depression and or anxiety. The groups were compared on
these scales using non-parametric tests as there were some outliers in the data and the
distributions were not normal. The Mann Whitney U test results displayed below show
that there is a significant difference between the low and high EDR groups as regards
anxiety (z = -2.67, p = 0.004) and depression (z = -1.60, p = 0.0545 ).
Table 19 – Test for mean difference between EDR groups in relation to depression and
anxiety
186