Disambiguation year suffix - how to add letters in the appearance order?

margokira

Hi,

I use American Psychological Association 7th edition style from the Zotero styles collection. When I cite two papers from the same year by the same author, it adds letters, like:
First, ... (Bieber, 2016b). Second, ...(Bieber, 2016a).

References:
Bieber, T. (2016a). Soft Governance in Education: Lessons and Prospects.
Bieber, T. (2016b). Soft Governance, International Organizations and Education Policy Convergence.

But my supervisor insists that letters should be added in the appearance order, like:
First, ... (Bieber, 2016a). Second, ...(Bieber, 2016b).

I read some topics ( https://forums.zotero.org/discussion/77180/problem-with-disambiguation-year-suffix ), and probably I have to define appearance order after the author name in my reference list, but how to do it?
I did not find the relevant parts in the APA 7 code.

adamsmith

First, let me re-iterate (as we have done elsewhere) that going by the order of the bibliography (i.e. alphabetically by title) is unambiguously correct in APA style.

The edge cases can be a bit tricky, but for the most part this should work by changing the sort section of the bibliography to

<key macro="author-sort"/>
<key macro="date-sort-group" sort="ascending"/>
<key macro="date-sort" sort="ascending"/>
<key variable="status"/>
<key variable="citation-number"/>
<key macro="title"/>
</sort>

You might need to add the <key variable="citation-number"/> at the end of the sort section for the citation, though that covers very rare cases only.