Sample and Population Generalizability
Research gap analysis derived from 2 biology papers in our local library.
The gap
There is a need to expand sample populations across age ranges in studies examining effort exertion for information (1), video game play effects on spatial ability (4), and lymphatic pumping technique efficacy (7).
Consensus across the literature
The papers collectively establish that findings may not generalize to broader age groups, but leave open the specific methods and datasets needed for such expansions.
Research trend
Emerging — attention growing, methods still coalescing.
Supporting evidence — 2 representative gaps
- Exerting effort for non-instrumental information under risk (2026) · doi
The sample was restricted to young adults aged 18-35, and considering the impact of aging on effort exertion, findings may not generalize to other age groups.
Keywords: sample restricted young adults aged considering impact aging effort exertion generalize groups - SHAP-explained machine-learning model for high-risk gastric cancer identification (2026) · doi
The cohort was restricted to individuals aged 40–74 years, which limits generalizability to adults ≥75 years.
Keywords: years cohort restricted individuals aged limits generalizability adults
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