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Define the following:theoretical sampling
Sign Test
A non-parametric test used to determine if there is a significant difference between paired observations, based on the direction of differences rather than the size.
T Test
A statistical test used to compare the means of two groups, or a sample mean to a known value, to determine if they are significantly different from each other.
Sign Test
A non-parametric test used to determine if there is a statistically significant difference between paired observations.
Matched Pairs
A study design where subjects are paired based on certain criteria, with one member of each pair receiving the treatment and the other serving as a control.
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