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Sample sizes for usability tests: mostly math, not magic.
James R. Lewis
Published in:
Interactions (2006)
Keyphrases
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sample size
model selection
random sampling
finite sample
covariance matrix
small sample size
statistical tests
variance reduction
statistical power
tutoring system
small sample
upper bound
random samples
number of training samples
small samples
worst case
confidence intervals
random sample
experimental design