Sources: 2026-08 / week-1

Claim ledger for "You Invest in Capability Every Year. Why Doesn't Performance Follow?"

Claim (as written) Source Link Status
"A meta-analysis of 81 independent samples found no significant relationship between prehire work experience and performance in a new organization." Experience predicted neither subsequent performance nor retention. Van Iddekinge, Arnold, Frieder & Roth, "A meta-analysis of the criterion-related validity of prehire work experience," Personnel Psychology 72(4), 2019, 571-598 https://onlinelibrary.wiley.com/doi/10.1111/peps.12335 verified
Competency, experience, skill and habit are each "a form of memory," and memory is composed of multiple distinct brain systems. Squire, "Memory systems of the brain: a brief history and current perspective," Neurobiology of Learning and Memory 82(3), 2004, 171-177 https://pubmed.ncbi.nlm.nih.gov/15464402/ verified
"Human processing capacity is limited, and capacity consumed by the demands already in front of someone is not available for acquiring anything new." Sweller, "Cognitive load during problem solving: Effects on learning," Cognitive Science 12(2), 1988, 257-285 https://onlinelibrary.wiley.com/doi/10.1207/s15516709cog1202_4 verified
"The transfer of training into improved job performance is far from automatic," occurring only under conditions most programmes do not control for, so training spend does not convert to performance on its own. Blume, Ford, Baldwin & Huang, "Transfer of Training: A Meta-Analytic Review," Journal of Management 36(4), 2010, 1065-1105 (meta-analysis of 89 studies) https://journals.sagepub.com/doi/10.1177/0149206309352880 verified
The container and contents framing (brain capacity as the vessel, competency as what fills it). Vanaya NeuroTech, Partner Certification Module 01, Neurometric Essentials v1.0, section 2.1 Internal document internal
"Brain capacity is a baseline rather than a fixed ceiling." Vanaya NeuroTech, Module 01 section 2.1: capacity is "not a fixed verdict. It is a baseline that can be developed" Internal document internal

Added on Dr. Lyra's request

Dr. Lyra asked for one global research data point showing that heavy training and development investment does not translate into performance. The defensible anchor is Blume et al. 2010 (above), a peer-reviewed meta-analysis of 89 studies. Wording note: the rigorous literature does not support "training has no impact" (some meta-analyses, e.g. Lacerenza et al. 2017, show training works when well designed). What it supports is that transfer to performance is conditional and far from automatic, so the article says the spend "does not convert on its own." That is her point, stated to standard.

The punchy alternatives were rejected on the sourcing bar:

Cut during sourcing

Two claims were pursued and dropped. Recorded so they are not revived later.

Softened during sourcing

Held in reserve