Assessment of Visual Memory and Learning by Selective Reminding Page: 36
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36
as well as the no brain damage group, or at least next in
order. This is not the case for either of the tests. The
diffuse group fell between the left and right hemisphere
groups. The right and left hemisphere groups do not differ
significantly from each other on the demographic variables,
yet their level of performance is in the expected order on
both tests. Although differences in age and intelligence
(as well as factors such as daily variability in alertness,
medication effects, etc.) may contribute to the absence of
significantly different performance among the brain damaged
groups on the visual test, it seems likely that the results
are due to some characteristic of the test.
One possible explanation for the lack of discrimination
among the groups may have to do with the difficulty level of
the test. As can be seen from Figure 1, the subjects without
brain damage initially recall an average of 2.7 designs and
increase to an average of 7.2 designs on Trial 12. None of
the brain damaged groups recall an average of more than four
designs on Trial 12. Only one of the 10 subjects in the no
brain damage group manages to recall all 12 designs correctly,
and this occurs on the twelfth trial. In contrast, three
patients from this group were able to recall all 12 words on
the verbal test from Trials 4, 6, and 8 onward. When the
best performers on the visual test are able to recall only 60%
of the items at the end of 12 trials, as opposed to 93% of the
words on the verbal test, it seems that the test is too
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Cummins, Shirley Jean. Assessment of Visual Memory and Learning by Selective Reminding, dissertation, August 1983; Denton, Texas. (https://digital.library.unt.edu/ark:/67531/metadc330808/m1/44/?rotate=90: accessed July 17, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; .