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Related Experiment Video

Updated: Jan 2, 2026

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Long-term inference and memory following retrieval practice.

Jessica Siler1, Aaron S Benjamin2,3

  • 1Department of Psychology, University of Illinois at Urbana-Champaign, 603 E. Daniel St, Champaign, IL, 61820, USA. siler3@illinois.edu.

Memory & Cognition
|December 11, 2019
PubMed
Summary
This summary is machine-generated.

Retrieval practice, or testing, significantly boosts inference for new category members over time, with benefits lasting up to 25 days. However, testing does not slow forgetting compared to restudy.

Keywords:
ForgettingTesting effectTransfer

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Area of Science:

  • Cognitive Psychology
  • Educational Psychology
  • Memory Research

Background:

  • The testing effect demonstrates that retrieval practice enhances memory recall compared to simple restudy.
  • Prior research suggests the benefits of testing generalize to new information and persist over time.

Purpose of the Study:

  • To investigate the long-term effects of retrieval practice on inference and memory for natural categories.
  • To compare the impact of retrieval practice versus rote restudy on forgetting rates.

Main Methods:

  • Two experiments were conducted involving natural category learning.
  • Participants underwent retrieval practice or rote restudy, with memory and inference tested at varying delays (up to 25 days).

Main Results:

  • Retrieval practice significantly enhanced inference for novel category members.
  • These benefits in memory and inference were maintained over the 25-day experimental period.
  • Forgetting rates for both rote memory and conceptual knowledge did not differ significantly between retrieval practice and restudy conditions.

Conclusions:

  • Retrieval practice is a powerful method for improving long-term inference, with lasting benefits.
  • While testing enhances inference, it does not appear to decelerate the rate of forgetting compared to restudy.