I am confused with the default logic of in-text citations in APA 6th style in Endnote as attached in the picture.
However, it seems that for 1 to 5 authors, it should include all authors’ names in the first in-text ciitation in the following link.
Also, for 1 to 2 authors, it should include all authors’ name in the subsequent citation.
If a paper has 4 or 5 authors, it will list all 4 or 5 with these setting the first time it is cited. – the second time it is cited it will only list the first author et al. A 2 or 3 authored paper will always list both or all three authors with these settings. This is common in humanities, but in sciences, it is rare to ever include all authors at the first citing unles 3 or less.