Using biblatex 2.0 and biber 1.0. You have to redefine the nyt sorting scheme and add a custom field, example below. In general, this is easy, just add a custom field with an ordering value based on the entrytype of the entry, then sort on this after the year:
\DeclareSourcemap{
\maps[datatype=bibtex]{
\map{
\pertype{book}
\step[fieldset=usera, fieldvalue=1]
}
\map{
\pertype{article}
\step[fieldset=usera, fieldvalue=2]
}
}
}
\DeclareSortingScheme{nyt}{
\sort{
\field{presort}
}
\sort[final]{
\field{sortkey}
}
\sort{
\name{sortname}
\name{author}
\name{editor}
\name{translator}
\field{sorttitle}
\field{title}
}
\sort{
\field{usera}
}
\sort{
\field{sorttitle}
\field{title}
}
\sort{
\field{sortyear}
\field{year}
}
\sort{
\field[padside=left,padwidth=4,padchar=0]{volume}
\literal{0000}
}
}
This problem is due to biblatex-apa's (apa.bbx's) apaauthor name format; you might want to notify the author of this small bug.
The string and others in the author list sets ifmorenames to true. apaauthor checks for this case whenever a name is printed, not just at the very end of the list; consequently it prints the andothers string ("et al.") after each name.
The fix is to add the following lines to your preamble.
\DeclareNameFormat{apaauthor}{%
\ifthenelse{\value{listcount}=\maxprtauth\AND\value{listcount}<\value{listtotal}}
{\addcomma\addspace\ldots\addspace}
{\ifthenelse{\value{listcount}>\maxprtauth\AND\value{listcount}<\value{listtotal}}
{}
{\ifthenelse{\iffieldequalstr{doubtfulauthor}{true}}
{\mkbibbrackets{\usebibmacro{name:apa:last-first}{#1}{#3}{#4}{#5}{#7}?}}
{\usebibmacro{name:apa:last-first}{#1}{#3}{#4}{#5}{#7}}}}%
\ifthenelse{\value{listcount}=\value{listtotal}}% this test is new
{\ifmorenames{\andothersdelim\bibstring{andothers}}{}}{}}
The MWE
\RequirePackage{filecontents}
\begin{filecontents*}{\jobname.bib}
@Article{boker2011,
Author = {Boker, S. and Neale, M. and Maes, H. and Wilde, M. and
Spiegel, M. and Brick, T. and Spies, J. and Estabrook,
R. and Kenny, S. and Bates, T. and others},
Title = {Open{M}x: {A}n open source extended structural
equation modeling framework},
Journal = {Psychometrika},
Volume = {76},
Number = {2},
Pages = {306--317},
year = 2011
}
\documentclass{apa6}
\usepackage[american]{babel}
\usepackage{csquotes}
\usepackage[style=apa,maxnames=999,sortcites=true,sorting=nyt,apabackref=true,backend=biber]{biblatex}
\DeclareLanguageMapping{american}{american-apa}
\addbibresource{\jobname.bib}
\addbibresource{biblatex-examples.bib}
\DeclareNameFormat{apaauthor}{%
\ifthenelse{\value{listcount}=\maxprtauth\AND\value{listcount}<\value{listtotal}}
{\addcomma\addspace\ldots\addspace}
{\ifthenelse{\value{listcount}>\maxprtauth\AND\value{listcount}<\value{listtotal}}
{}
{\ifthenelse{\iffieldequalstr{doubtfulauthor}{true}}
{\mkbibbrackets{\usebibmacro{name:apa:last-first}{#1}{#3}{#4}{#5}{#7}?}}
{\usebibmacro{name:apa:last-first}{#1}{#3}{#4}{#5}{#7}}}}%
\ifthenelse{\value{listcount}=\value{listtotal}}
{\ifmorenames{\andothersdelim\bibstring{andothers}}{}}{}}
\shorttitle{IFA}
\begin{document}
OpenMx \parencite{boker2011,aksin,wilde,murray}
\printbibliography
\end{document}
then yields
Update 2013-10: This has been corrected in biblatex-apa version 6.4 according to a comment below the question from user PLK.
Best Answer
As discussed in the comments, with
backend=bibtexyou can only use a restricted list of sorting schemes (none,nty,nyt,nyvt,anyt,anyvt,ynt,ydnt,debug) and\DeclareSortingTemplateis not available at all with BibTeX.You will need to use Biber with your document. (Which is a good idea anyway since many of
biblatex's advanced features require Biber. The documentation used to explain which bits were Biber-only, but a few years ago it was decided to make BibTeX a "legacy backend" and just assume that the average user uses Biber.)https://github.com/plk/biblatex/commit/0c21cd8c142d1a2f0c2d1e4810890388fa82551e will give a warning in case unsupported sorting templates are used with BibTeX.