[Tex/LaTex] Indentation APA6 Class for > 2nd paragraphs after title

Question

I'm not able to indent the paragraphs in my apa6 class document. For my masterthesis the supervisor wants all the paragraphs indented but the first one after the title. So far, I've tried the following commands but It hasn't worked out yet:

\setlength{\parindent}{15pt}
\indent

My minimal working example:

\documentclass[12pt, onecolumn]{apa6}
\usepackage[utf8]{inputenc}
\usepackage[american]{babel}
\usepackage{csquotes}
\usepackage[style= apa, backend=biber]{biblatex}
\bibliography{/Applications/TeX/library}
\DeclareLanguageMapping{american}{american-apa}

\begin{document}
\setlength{\parindent}{1.27cm}
\section{Section1}
Paragraph one (not indented)

Paragraph two (should be indented but isnt)

\end{document}

I'm glad for any advices on this 🙂
Cheers!

Answer 1

The problem with the apa6 class is the exact opposite to what you mention: by default, the first line of all paragraphs, including the first line of the first paragraph after a sectional unit, are indented.

To suppress the indentation for the first line after a sectional unit of type \section and \subsection, you can redefine the values of some skips defined by the class (in my example, I suppreseed some packages that were not relevant to the issue discussed):

\documentclass[12pt,onecolumn]{apa6}
\usepackage[utf8]{inputenc}
\usepackage[american]{babel}

\makeatletter
\b@level@one@skip=-2.5ex plus -1ex minus -.2ex
\b@level@two@skip=-2.5ex plus -1ex minus -.2ex
\makeatother

\setlength\parindent{1.27cm}

\newcommand\Text{Some test text for the example }

\begin{document}

\section{Test section}
\Text\Text\Text\Text\Text

\Text\Text\Text\Text\Text

\subsection{Test subsection}
\Text\Text\Text\Text\Text

\Text\Text\Text\Text\Text

\end{document}

I would suggest you to use, if possible (i.e., if your supervisor allows you), a different document class; personally, I don't like the settings offered by apa6.