Self-collected in a sentence as an adjective

The serious criticism is that she rejects the exclusion of several self-collected data points, even if they have not been compiled by sociologists.

Self-collected definitions

adjective

in full control of your faculties; "the witness remained collected throughout the cross-examination"; "perfectly poised and sure of himself"; "more self-contained and more dependable than many of the early frontiersmen"; "strong and self-possessed in the face of trouble"

See also: collected equanimous poised self-contained self-possessed