apa citation call-out style in apa7 document class

Question

I am using the apa7 document class in overleaf. However, somehow, \parencite always hides all authors but the first one even the first time an entry is cited.

For example, \parencite{Lassen2006} returns (Lassen et al., 2006). However, I want it to be (Lassen, Steele, & Sailor, 2006) the first time it is cited and then (Lassen et al., 2006) for subsequent citations.

Below is the bib file and my header:

@ARTICLE{Lassen2006,
  author = {Lassen, Stephen R. and Steele, Michael M. and Sailor, Wayne},
  title = {The relationship of school-wide positive behavior support to academic achievement in
    an urban middle school},
  journal = {Psychology in the Schools},
  year = {2006},
  volume = {43},
  pages = {701--712},
  number = {6}
}

\documentclass[man]{apa7}
\usepackage{lipsum, authblk}
\usepackage[american]{babel}
\usepackage{csquotes}
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}
\usepackage[style=apa,sortcites=true,sorting=nyt,backend=biber]{biblatex}
\DeclareLanguageMapping{american}{american-apa}
\addbibresource{bibliography.bib}

Any suggestions?

Answer 1

[I'm providing this answer just so that the posting can be considered to have received an "official" answer.]

The desired citation call-out behavior you describe is that of the 6th ed. of the APA manual. (What's current is the 7th ed.) To get the desired behavior with biblatex and biber, run

\usepackage[style=apa6]{biblatex}
\addbibresource{bibliography.bib}

in the preamble along with \parencite in the body of the document. If, for some reason, you would rather use the apacite package, you should run

\usepackage[natbibapa]{apacite}
\bibliographystyle{apacite}

in the preamble along with \citep in the body of the document.

\documentclass[man]{apa7}

\begin{filecontents}[overwrite]{bibliography.bib}
@ARTICLE{Lassen2006,
  author  = {Lassen, Stephen R. and Steele, Michael M. and Sailor, Wayne},
  title   = {The relationship of school-wide positive behavior support 
             to academic achievement in an urban middle school},
  journal = {Psychology in the Schools},
  year    = {2006},
  volume  = {43},
  pages   = {701--712},
  number  = {6}
}
\end{filecontents}

%% With biblatex (and biber):
\usepackage[style=apa6]{biblatex}
\addbibresource{bibliography.bib}

%% With apacite (and BibTeX):
%\usepackage[natbibapa]{apacite}
%\bibliographystyle{apacite}

\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}
\usepackage{lipsum, authblk}
\usepackage[american]{babel}
\usepackage[english=american]{csquotes}
\shorttitle{xyz} % just to suppress a pesky warning message
\hypersetup{colorlinks,allcolors=blue} % optional

\begin{document}

%% With biblatex (and biber):
\parencite{Lassen2006}, \parencite{Lassen2006}
\printbibliography

%% With apacite (and BibTeX):
%\citep{Lassen2006}, \citep{Lassen2006}
%\bibliography{bibliography}

\end{document}