IPA: /ˌɒpəˈreɪʃənəlɪst/
KK: /ˌɑːpəˈreɪʃənəlɪst/
Relating to a theory that defines concepts in terms of observable operations or procedures.
The research was guided by an operationalist approach, focusing on measurable outcomes.
Operationalist → It is formed from "operation" (from Latin "operatio", meaning a working or performance) and the suffix "-alist" (meaning one who practices or advocates). An operationalist is someone who advocates for or practices a specific method of operation or procedure.
Think of someone who is focused on a specific 'working' or 'performance' ('operation') and is an advocate or practitioner ('-alist') of that method.