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There have been a number of studies >
investigating the use of different colors of text
on different background colors. The results,
however, have not always been in accord with
previous studies, for several possible reasons:
- the type and capability of equipment used in
the studies has not always been clearly
specified. Earlier hardware was capable of
displaying only a very limited number of colors;
some even wasn't capable of displaying
lower-case text
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- the tasks undertaken in the research studies
have not necessarily been equivalent. They have
varied from simple searches for specific letters
embedded in a matrix or for specific words or
information, to reading comprehension tasks and
learners' subjective preferences
- in some cases contrast between text and
backgrounds was manipulated (or at least
considered) while in other cases it defaulted to
whatever the equipment could reproduce.
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