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

There were no outliers or extreme cases. Relevant descriptive statistics are displayed in
Table 10 below followed by bivariate statistics in order to explore the one tailed
hypothesis that the high EDR group will have higher inflexibility than the low and
moderate EDR groups.
Table 10 - Descriptive statistics for the Inflexibility clinical scale for the EDR groups
Eating Disorder Risk Category Body Image Acceptance
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)
62
147.82 (3.92)
158.50
30.87
67-203
-0.65 (0.30)
13
145.46 (7.85)
148
28.29
96-180
-0.59 (0.62)
6
89.33 (12.98)
83.50
31.79
49-136
0.42 (0.85)
As can be seen from Table 10 above the Low EDR group has a higher body acceptance
(mean 147.82) than the moderate EDR group (mean 145.46) and the high EDR group
(mean 89.33) and this is explored using bivariate statistics below. Again in view of the
group sizes it was decided to use non parametric analysis to prevent producing results
that would violate parametric assumptions. Therefore the above hypothesis was explored
using the Mann Whitney U Test.
Table 11 – Results of Mann Whitney U Test to explore EDR groups in relation to body
image acceptance
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