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49 lines
1.5 KiB
Plaintext
49 lines
1.5 KiB
Plaintext
9 months ago
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help for ^iclassr2^
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Intra-class correlation for paired measures [STB-35 sg65]
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^iclassr^ response_var1 response_var2 [^if^ exp] [^in^ range] [^, c^enter^(^Fpos^)^]
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Description
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-----------
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^iclassr2^ calculates the intra-class correlation for paired measurements or as-
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sessments stored in response_var1 and response_var2. ^iclassr2^ also reports the
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reliability of the mean of the two measurements as estimated from the Spearman-
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Brown prophecy formula. Missing values are handled by casewise deletion.
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@loneway@ also calculates intra-class correlations, but requires data in long,
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rather than wide format. ^iclassr2^ is also much faster than ^loneway^, and offers
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a small sample adjustment to the intra-class r; see the option ^center^, below.
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Options
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-------
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^center^ chooses a reference point in the F distribution to center the observed
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F statistic in estimating the intra-class correlation. The argument Fpos
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may be 1 (the default), or "med" or "mean" to choose the median or the mean
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of the appropriate F distribution. This option has little effect unless the
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number of pairs is small.
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Examples
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--------
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. ^iclassr2 judge1 judge2^ (inter-judge reliability)
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. ^iclassr2 judge1 judge2, c(med)^ (intra-judge reliability, center the ob-
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served F on its median)
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Also see
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--------
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STB: sg65 (STB-35)
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Manual: ^[R] loneway^
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On-line: help for @loneway@
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