Repeated familiar program excerpts make the most effective listening-test stimuli.

Evidence

On each loudspeaker one set of technical measurements is sufficient, but subjective tests must be repeated and randomized, and must involve several listeners to be statistically useful data. — Toole, Floyd E, Sound reproduction- the acoustics and…, 144 (#expands, via linked claim)

Categorization

• XREF: connects to: Subjective listening tests require repetition and randomization to be statistically valid — Toole, Floyd E, Sound reproduction- the acoustics and…, 144; Repeated listening exercises always yield novel understanding each pass.; Randomizing identifiers, positions, and music prevents experimenter bias in listening tests (+2 more)

Broader Connections

• Subjective listening tests require repetition and randomization to be statistically valid #expands (0.72) — Toole, Floyd E, Sound reproduction- the acoustics and…, 144
• Repeated listening exercises always yield novel understanding each pass. #contradicts (0.72)
• Repeated exposure makes a second sentence intrinsically more intelligible than the first #corroborates (0.72)
• Randomizing identifiers, positions, and music prevents experimenter bias in listening tests #expands (0.70)