self-selection

From self- + selection.

self-selection (usually uncountable, plural self-selections)

1. Selecting oneself for something.
2. Selecting something for oneself.
   • 2022 July 26, Mike Isaac, quoting Mark Zuckerberg, “‘Operating With Increased Intensity’: Zuckerberg Leads Meta Into Next Phase”, in The New York Times‎^[1], →ISSN:

     “I think some of you might decide that this place isn’t for you, and that self-selection is OK with me,” Mr. Zuckerberg said.

3. (countable) An item selected by oneself.
4. (statistics) A form of nonprobability sampling bias in which individuals select themselves into a group.

• adverse selection