emphasis
I usually use $p$-value but I was wondering if \emph{p}-value is the recommended way to typeset terms with a one or more italicized character?
(Edit: Similar cases include t-test, t-statistic and t-distribution where the italicized character may also be used in a math expression; and n-type, p-type and k-correction where the italicized character is an abbreviation)
\emph is like e.g. \textit a command with an argument. \em is the "switch" variant, comparable to \itshape. \em is not an outdated TeX or LaTeX2.09 command but a real LaTeX2e command. Actually \emph is defined through em:
\DeclareTextFontCommand{\emph}{\em}
\em is useful for long texts (\emph e.g. doesn't allow the argument to contain a \par). The commands differ (like the \textit/\itshape) in their handling of the italic correction:
\documentclass{article}
\begin{document}
abc\emph{lll}lll \textit{lll}llll
abc{\em lll}lll {\itshape lll}llll
abc{\em lll\/}lll
%\emph{abc\par bc} error
{\em abc\par bc}
\end{document}
You could use
\let\oldemph\emph
\renewcommand\emph[1]{{\huge\oldemph{#1}}}
For future reference (for other users), the llncs documentclass is available here
\documentclass{llncs}
\let\oldemph\emph
\renewcommand\emph[1]{{\huge\oldemph{#1}}}
\begin{document}
Here is some \emph{emphasized} text
\end{document}
Best Answer
Absolutely definitely not emph
As
\emphis for doing ↑↑↑↑ using (some) font change for emphasis. It may use an italic font, or it may use upright (if the current font is italic) or it may use bold or red (if the document class designer so chooses).So the choices are
\textitfor text italic or$for math. I think math is more appropriate and makes the p or t match the font used if those letters are used in an expression $t$-test .... $t=\frac{Z}{s}$ .... or whatever.