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Statistical results

Error rates

Range x Experience (RxE)Range x Span (RxS)

Results on error rate

lower range delimiters have more errors at narrow span

truncation has no effect on errors

novices have more errors at lower range delimiter

Graphs: whenever there are non-parallel lines, we have an interaction effect

novice

errors

0

16

full

upper

expert

lower

errors

0

16

wide

narrow

lower

upper

full

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