The property of data such that research results apply to situations beyond the particular sample of individuals or items observed in a single research setting refers to

When results apply beyond the particular sample or setting observed, the property is external validity.

External validity is the generalizability of findings to other people, places and times.

Internal validity instead concerns whether the causal inference within the study is sound.

Convergent validity is the agreement of measures expected to relate to one another.

Divergent validity is the expected non-correlation of measures of unrelated concepts.

Representative sampling is a key route to strengthening external validity.