Abstract.
The paper addresses task numbers and cognitive levels as determinants of item
facility indices. Task number is a new concept in item analysis and in conjunction with
cognitive levels account for much item facility indices. Null hypotheses were rejected.
The correlation coefficient between item facility indices and task number as well as
that between item facility indices and cognitive levels were both statistically
significant. The coefficient of multiple correlations between item facility indices on
the one hand and task numbers and cognitive levels on the other hand is even more
statistically significant. The paper therefore recommends that task numbers and
cognitive levels should be given much consideration as determinants in item
difficulty.
Keywords: Task number, Cognitive level, Item difficulty.
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