Whether the results of a study can be generalized beyond the specific research context, refers to

Whether the results of a study generalise beyond its specific research context refers to external validity.

Reliability concerns the consistency of a measure across repeated use, not generalisation.

Replicability is about others being able to reproduce the study, a related but distinct idea.

Internal validity concerns whether the study establishes a sound causal link within itself.

External validity thus governs the reach of findings to other people, settings and times.

Representative sampling is a key means of strengthening external validity.