The psychopathology of everyday art: a quantitative Study - World ...

size (_=0.36) which contrasts wildly with the medium-large effect from the DAPA
(_=0.74); 7 other separate categories were encompassed under the DAPA emotional tone
category: three categories, those of themes, reality and complexity which seemed very
close in meaning but were measured separately by most studies, showed negligible effect;
quality showed a low effect; energy and composition, medium effect. Only content as
defined by counts of specific psychiatric indicators showed a high effect comparable to
the general category of emotional tone. The other high effect from the literature review,
body details was not included in the DAPA, there was a medium-high effect on control
which was not included in the DAPA test and neither was detail in other areas (which
achieved a small effect).
The deletion of negligible effects from the literature review set of categories gave
a subset of 8 significant areas of measurement of drawing with a medium effect size
(_=0.57), and is still lower than that of the DAPA, but it only covers two DAPA
categories and was relatively overloaded on content. The DAPA test therefore seems
more sensitive to different areas of measurement of a painting and is potentially a more
effective discrimination tool. However, the t-test does not take account of
interrelationships between variables, nor the number of tests performed 338 so this
analysis is limited to a theoretical comparison of independent effect of the variables with
that produced in Chapter 2 and is not an appropriate measure to predict practical
discriminations.
338 We could use the Bonferroni correction here, but it merely confuses the data and the problem of
correlation of the variables remains and it is better to use the following analysis.
316