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

Eating Disorder risk categories Total
low moderate high
ED history no Count 59 15 7 81
% within Eating Disorder
risk categories 92.2% 88.2% 70.0% 89.0%
yes Count 5 2 3 10
% within Eating Disorder
risk categories 7.8% 11.8% 30.0% 11.0%
Total Count 64 17 10 91
% within Eating Disorder
risk categories 100.0% 100.0% 100.0% 100.0%
Mental
Illness
history
No Count
56 9 9 74
% within Eating Disorder
risk categories 86.2% 90.0% 90.0% 87.1%
Yes Count 9 1 1 11
% within Eating Disorder
risk categories 13.8% 10.0% 10.0% 12.9%
Total Count 65 10 10 85
% within Eating Disorder
risk categories 100.0% 100.0% 100.0% 100.0%
A Chi-squared test of independence was used to compare the percentages of those
reporting ED history and mental illness history across the EDR groups.
The results of this test suggested a borderline significance, Chi-square = 4.37, (df = 2) p
=.11, indicating a higher prevalence of eating disorder cases (i.e. 30%) in the families of
those girls that fell into the highest EDR risk group in comparison to the other EDR risk
groups. The Contingency Coefficient representing an effect size correlation was found to
be .21.
The Chi-squared test was repeated for mental illness history where no significant results
were found. Chi squared = .201, (df = 2), p = .904, with a Contingency Coefficient of .05.
5) Drug and alcohol use between the EDR risk groups.
193