The experiment employs a counterbalanced design in which … interface with a complex library (motif). Each subject … [which type checks function calls and one in K&R C [which does not]. … [p. 307] Statistic 4 is the time from the … [median for ANSI 0.3 hours vs. K&R 1.2 hours p < 0.004] … [p.318] Statistic 7 confirms that there are more … [2] than in the ANSI C programs [1, p<0.004] [The difference was due to interface errors].
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