Where it is used
Each entry identifies the volume, edition, chapter or appendix in which the work appears.
The evidence behind the series
Browse the scientific research and professional literature used across all seven volumes of The Science of Learning for Educators.
Search the collection
Choose an author range, search a title or concept, or narrow the collection by source type. Open any result to see where it appears in the books, read its evidence summary and follow available source links.
1 reference
Soderstrom and Bjork distinguish performance—temporary, observable success during instruction—from learning, the relatively durable changes that support later retention and transfer. The two can dissociate: conditions that produce rapid, fluent performance may create weak long-term learning, while conditions that introduce errors or difficulty during practice can strengthen later capability.
The review traces this distinction from latent learning and motor research through contemporary verbal and skill learning. Massed practice, blocked schedules, immediate feedback, and repeated study often improve acquisition performance. Spacing, interleaving, delayed or reduced feedback, retrieval practice, variable practice, and generation can impair or slow practice yet enhance delayed tests, provided the difficulty is desirable rather than overwhelming. Learners and instructors may misjudge effectiveness because fluency and confidence are salient. For educators, training should be evaluated with delayed, unfamiliar, and transfer tasks, not practice scores alone.
Support can be reduced as expertise grows, and challenge should remain achievable with feedback. The article does not claim that poor performance is always productive; difficulty benefits learning only when it engages relevant processes and successful encoding or retrieval remains possible.
A transparent research trail
Each entry identifies the volume, edition, chapter or appendix in which the work appears.
Evidence summaries explain the central idea and why the source matters to educators.
Entries link to lawful full text where available, or to a publisher, library or purchase page.
References are checked against publisher records, scholarly indexes, DOI or ISBN metadata, repositories and author records where available. An entry marked [Citation not verified] preserves the wording found in the relevant volume without attributing findings to an unconfirmed work.
From sources to a coherent pathway