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Research Methods In Clinical Psychology

1) Before treatment, did the groups significantly differ on Body Mass Index (BMI), age, or ventricle volumes? Provide and explain the relevant analyses. If the groups did differ, exactly how did they differ?
Yes, controls, and bulimic and anorexic patients differed on pre-BMI, age, and pre-ventricle volumes. Anorexia-Bulimia and Anorexia-Controls differed along BMI scores and ventricle volumes before treatment: F(2, 54)= 20.80, p 0.05.

5) Which group(s) demonstrated a significant change in ventricle volumes from Pre- to Post-Treatment?
Only the Anorexia group showed a statistically significant change in ventricle volumes before and after treatment—t(9)=8.0, p < 0.001. The ventricle volume decreased from almost 17 to about 15. The correlation was significant at p=0.016, r=0.73. However, controls and bulimics did not show a statistically significant change in pre- and post-treatment ventricle volumes. Bulimics' pre- and post-treatment ventricle volume change was t(9)=1.94,......


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Approximate Word Count: 896
Approximate Pages: 4 (250 words per double-spaced page)

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