Metacognition of the testing effect: Guiding learners to predict the benefits of retrieval
Mem Cogn (2013) 41:429–442
DOI 10.3758/s13421-012-0274-5
Metacognition of the testing effect: Guiding learners
to predict the benefits of retrieval
Jonathan G. Tullis & Jason R. Finley & Aaron S. Benjamin
Published online: 14 December 2012
# Psychonomic Society, Inc. 2012
Abstract If the mnemonic benefits of testing are to be
widely realized in real-world learning circumstances, people
must appreciate the value of testing and choose to utilize
testing during self-guided learning. Yet metacognitive judgments do not appear to reflect the enhancement provided by
testing Karpicke & Roediger (Science 319:966–968, 2008).
In this article, we show that under judicious conditions,
learners can indeed reveal an understanding of the beneficial
effects of testing, as well as the interaction of that effect with
delay (Experiment 1). In that experiment, subjects made
judgments of learning (JOLs) for previously studied or
previously tested items in either a cue-only or a cue–target
context, and either immediately or after a 1-day delay. When
subjects made judgments in a cue-only context, their JOLs
accurately reflected the effects of testing, both immediately
and at a delay. To evaluate the potential of exposure to such
conditions for promoting generalized appreciation of testing
effects, three further experiments elicited global predictions
about restudied and tested items across two study/test cycles
(Experiments 2, 3, and 4). The results indicated that learners’ global naïve metacognitive beliefs increasingly reflect
the beneficial effects of testing when learners experience
J. G. Tullis : J. R. Finley : A. S. Benjamin
Department of Psychology,
University of Illinois at Urbana-Champaign,
Urbana, USA
J. G. Tullis (*)
Department of Psychology,
University of Illinois, 603 E. Daniel St.,
Champaign, IL 61820, USA
e-mail:
Present Address:
J. R. Finley
Department of Psychology,
Washington University in St. Louis,
St. Louis, USA
these benefits with increasing external support. If queried
under facilitative circumstances, learners appreciate the
mnemonic enhancement that testing provides on both an
item-by-item and global basis but generalize that knowledge
to future learning only with considerable guidance.
Keywords Testing effect . Metacognition . Monitoring .
JOLs . Guided instruction
Guiding learners to predict the benefits of retrieval
For research on learning and memory to be relevant to students who wish to enhance their performance in the classroom, that research must acknowledge the fact that a
significant portion of learning occurs outside of the classroom,
under the supervision of only the student. In circumstances in
which no teacher directly guides the learning activities, learners must rely upon their own metacognition to determine what
they need to study, how to study, and when to cease study.
Self-regulated aspects of learning have significant implications for the effectiveness of students’ learning efforts and
achievement in education (Dunlosky & Theide, 1998). For
example, how study time is allocated across items often determines how much is remembered (Son & Kornell, 2008; Tullis
& Benjamin, 2011a, b). Being an effective learner requires the
ability to make appropriate study decisions (e.g., Finley,
Tullis, & Benjamin, 2009; Metcalfe, 2009), and the effectiveness of these decisions is directly modulated by the quality of
metacognitive monitoring (Metcalfe & Finn, 2008; Thiede,
Anderson, & Therriault, 2003). When monitoring judgments
are inaccurate or biased, study decisions can result in suboptimal learning (Atkinson, 1972; Kornell & Bjork, 2008; Tullis
& Benjamin, 2011a).
In this article, we consider whether learners are sensitive
to the mnemonic effects of testing. We will briefly review
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the testing effect and consider extant research suggesting
that learners fail to accurately monitor the mnemonic effects
of testing. After that, we report four experiments that evaluated the extent to which learners do accurately monitor the
mnemonic effects of testing. Experiment 1 investigated
whether learners’ metacognitive judgments reflect the mnemonic benefits of testing under conditions that promote
judgments based on mnemonic cues rather than naïve theory
(Kelley & Jacoby, 1996; Koriat, 1997). Experiments 2, 3,
and 4 addressed whether learners attribute improved memory performance to testing and whether this knowledge
generalizes to global judgments about future learning.
Metacognition and the testing effect
Retrieval has enormous potential to enhance long-term retention, particularly if learners appreciate its benefits and
utilize it properly during self-regulated learning. However,
learners’ metacognitive judgments fail to reflect the advantages that successful retrieval provides for long-term retention. In order to assess whether learners recognize the
benefits that testing provides, researchers have surveyed
undergraduate students about their real-life study habits.
When students free report the study strategies they use,
11 % report that they practice retrieval, 40 % report using
flashcards, and 43 % report practicing solving problems (the
latter two options could be viewed as a means of selftesting; Karpicke, Butler, & Roediger, 2009). When choosing the study activities they use from a given list of options,
18 % of students report using self-testing as a means of
studying. The percentage of students who report using selftesting when they have an opportunity to restudy afterward
increases to 42 %. However, another survey provides a
much higher estimate of the use of self-testing by suggesting
that up to 71 % of students regularly test themselves with
practice problems (Hartwig & Dunlosky, 2012). Even with
the highest estimates of self-testing, far from all students
report using self-testing to bolster mnemonic performance.
While many learners do not utilize retrieval during study
to benefit retrieval, those who do recognize only the indirect
benefits of testing. A majority of students who report using
self-testing report that they use testing as a means of assessing rather than improving learning, which is an indirect
effect of testing. Learners are largely unaware that successful retrieval directly improves learning. When asked “If you
test yourself while studying, why do you do it?” approximately two thirds of students report that they test themselves
in order to determine what they do and do not know so they
can better allocate future study time (Kornell & Bjork, 2007;
Kornell & Son, 2009). Only around 20 % of students report
that they test themselves because they learn more from
testing than from restudying. Researchers have thus argued
Mem Cogn (2013) 41:429–442
that learners do not grasp the immense improvement that
testing affords for long-term memory retention (Agarwal,
Karpicke, Kang, Roediger, & McDermott, 2008; Karpicke,
2009; Karpicke & Roediger, 2008; Kornell & Son, 2009;
Roediger & Karpicke, 2006).
Learners’ appreciation of the mnemonic effe (...truncated)