Disagreement between studies can stem from method and sample differences, not real findings.

Evidence

Because of the non-committal nature of the research, it was hard to tell to what extent differences of this sort were the result of class differences within the respective samples, or whether Bettelheim, with a more intensive interview technique and with more direct access to his subjects than the Berkeley group, was able to discern deep-seated destructive tendencies on the basis of the subjects’ relationship to established social institutions. — Rolf Wiggershaus, The Frankfurt School, 451

Categorization

• DEFINE: Explains why comparative social research findings diverge — interview technique and access, not just measured attitudes.
• XREF: connects to: Findings may depend on the particular groups researchers select. — Susan T. Fiske et al., A Model of (Often Mixed) Stereotype…, 158; The research evidence on anti-bias training effectiveness is genuinely conflicting.; Inconsistent research findings often signal underlying measurement error rather than real variation — Bob Altemeyer, The Authoritarian Specter, 2057 (+1 more)
• yield-rescued: below the book’s yield-target cutoff, included anyway for connecting to: Findings may depend on the particular groups researchers select. — Susan T. Fiske et al., A Model of (Often Mixed) Stereotype…, 158; The research evidence on anti-bias training effectiveness is genuinely conflicting.; Inconsistent research findings often signal underlying measurement error rather than real variation — Bob Altemeyer, The Authoritarian Specter, 2057 (+1 more)