In plain terms, dynamic assessment asks a different question than an ordinary test. A normal test asks, "What can you do right now, on your own?" Dynamic assessment asks, "What can you learn, and how much help do you need to do it?" Instead of one sealed attempt, the examiner tests the learner, then teaches — offering hints, prompts, and feedback — and then tests again, watching how readily the learner improves. The idea grew out of Lev Vygotsky's zone of proximal development and was built into a working method above all by Reuven Feuerstein, partly to give a fairer hearing to children whom conventional tests had written off. This article explains what dynamic assessment is, how it differs from static testing, the two main traditions that practice it, how it works in a real case, where it is used, and the serious debates about whether it delivers on its promise.
Dynamic assessment (DA) is an interactive, test–intervene–retest approach to psychological and educational assessment that measures a learner's capacity to learn rather than only their current, unaided performance (Haywood & Lidz, 2007). Where a conventional ("static") test records what a person can do in a single attempt without help, dynamic assessment deliberately inserts a phase of teaching or mediation into the testing itself and gauges how much, and how readily, the learner improves in response (Sternberg & Grigorenko, 2002). Its theoretical target is the zone of proximal development — the distance between what a learner can do alone and what they can do with support — which is precisely the quantity static tests leave invisible (Vygotsky, 1978). The approach belongs to the family of ideas in Vygotsky's sociocultural theory, alongside scaffolding and the more knowledgeable other.
What Is Dynamic Assessment?
The defining move of dynamic assessment is that assessment and instruction are interwoven rather than kept separate. A static test treats any help from the examiner as contamination; dynamic assessment treats the learner's response to help as the most informative thing about them. The procedure typically runs in three phases — an initial test of unaided performance, a phase of mediation in which the examiner teaches and prompts, and a retest — and the "score" of interest is not the final product alone but the learner's responsiveness to mediation: how much improvement the help produced, and how much help it took (Haywood & Lidz, 2007). Reuven Feuerstein, whose Learning Potential Assessment Device (LPAD) made the approach concrete, framed this as a shift "from product to process" — from scoring answers to observing the act of learning as it happens (Feuerstein, Rand, & Hoffman, 1979).
This reframes what an assessment is for. A static score is a prediction that treats the present as fixed; a dynamic score is closer to a description of a trajectory — an estimate of what the learner is ready to acquire next, and of the kinds of support that unlock it (Sternberg & Grigorenko, 2002).
Static Versus Dynamic Assessment
The contrast with conventional testing is the quickest way to see the point. A static test — an IQ test, a reading test, the SAT — samples performance once, under standardized conditions, with no assistance, and reports where the learner stands relative to others. That is useful, but it confounds two very different things: what a learner cannot do, and what a learner has simply not yet had the chance to learn.
This distinction carried an explicit fairness motivation. Feuerstein developed his methods working with children who had been displaced, traumatized, and educationally deprived, and who scored as "retarded" on conventional tests yet learned rapidly when taught — an outcome static scores badly misrepresented (Feuerstein, Rand, & Hoffman, 1979). The same concern recurs wherever a static test may underestimate a learner because of limited prior opportunity rather than limited ability: children from low-income or minority backgrounds, children with disabilities, and learners assessed in a language that is not their first (Sternberg & Grigorenko, 2002; Grigorenko & Sternberg, 1998).
The Vygotskian Foundation
Dynamic assessment is the most direct measurement application of Vygotsky's zone of proximal development. Vygotsky argued that a child's independent performance and their performance with help from an adult or a more capable peer are two different developmental facts, and that the second — what the child can do today with assistance — forecasts what they will do alone tomorrow (Vygotsky, 1978). He even suggested that two children with identical static scores might have entirely different capacities to benefit from instruction, which is exactly the gap a single test cannot reveal (Vygotsky, 1986). Dynamic assessment operationalizes this: the examiner functions as the more knowledgeable other, the mediation is a form of scaffolding, and the measured responsiveness is an estimate of the width of the zone itself. Ann Brown and Roberta Ferrara made this measurement aim explicit, proposing the diagnosis of a child's zone of proximal development — through a standardized series of graduated hints, scored by how much prompting the child needs to reach a criterion — as a direct alternative to conventional standardized testing (Brown & Ferrara, 1985).
Two Traditions: Clinical and Psychometric
Beneath the shared procedure, dynamic assessment splits into two traditions that pull in different directions, a tension that organizes much of the field.
The interactionist, or clinical, tradition descends from Feuerstein. Here mediation is open-ended and individualized: the examiner does whatever it takes to provoke change, follows the learner's responses flexibly, and produces a rich qualitative profile of how the learner thinks and what kinds of mediation help (Feuerstein, Rand, & Hoffman, 1979; Haywood & Lidz, 2007). Its priority is clinical insight and the promotion of change, not a single comparable number.
The interventionist, or psychometric, tradition — rooted in Milton Budoff's early learning-potential testing (Budoff, 1974) and in the graduated-prompts method of Ann Brown and her colleagues (Brown & Ferrara, 1985), and given its most systematic modern form by Robert Sternberg and Elena Grigorenko — keeps the mediation standardized so that results are objective, repeatable, and comparable across learners. Help is delivered as a fixed sequence of graduated prompts, and the score is the number of hints needed or the size of the pretest-to-posttest gain (Sternberg & Grigorenko, 2002). Sternberg and Grigorenko reserve the term dynamic testing for this transparent, quantifiable version, distinguishing it from the broader, clinically oriented "dynamic assessment" (Grigorenko & Sternberg, 1998).
The two traditions are often described by their format. In the "sandwich" format, a block of teaching is placed between a single pretest and a single posttest; in the "cake" format, graduated hints are layered in during the test itself, item by item, like the layers of a cake (Sternberg & Grigorenko, 2002). The deeper disagreement is a genuine trade-off: standardizing the mediation makes scores comparable but blunts the individualized responsiveness that is the whole point, while individualizing it captures the learner richly but sacrifices comparability — a tension dynamic assessment has never fully resolved (Lantolf & Poehner, 2004).
A Worked Example: Beyond the One-Shot Score
Consider Aria, a seven-year-old recently arrived in a new country, who takes a static reasoning test in her second language and scores in the bottom tenth percentile. On a conventional report, that number stands as her ability.
A dynamic assessment proceeds differently. The examiner gives Aria a set of pattern-completion problems and notes that she fails most of them unaided — the pretest. Then comes mediation: the examiner shows her how to scan a pattern systematically, names the idea of a repeating rule, models one solution aloud, and offers graduated hints on the next few, watching which ones she takes up. Finally, the retest presents new, unseen problems of the same kind. Aria now solves most of them, and needs fewer hints as she goes (Haywood & Lidz, 2007). Her responsiveness — a large gain from only modest, transferable mediation — tells a story the static score could not: her low initial performance reflected unfamiliarity with the task and the language, not a low capacity to learn, and it points to the specific supports that let her succeed (Feuerstein, Rand, & Hoffman, 1979; Vygotsky, 1978). The gain across her zone of proximal development, not the unaided pretest, is the assessment's real finding.
Dynamic Assessment Compared With Related Approaches
| Approach | What it does | Relationship to dynamic assessment |
|---|---|---|
| Static (conventional) testing | Samples unaided performance once, under standardized conditions | The contrast DA was built against; it measures the present, not the potential |
| Formative assessment | Uses ongoing classroom evidence to guide teaching | Shares the spirit of assessment-for-learning, but DA is structured specifically around mediated change |
| Response to Intervention (RTI) | Delivers tiered instruction and monitors students' response over weeks | A systems-level cousin; DA assesses responsiveness to help at the level of a single session |
| Scaffolding | Calibrated support that is withdrawn as competence grows | The mechanism DA uses during its mediation phase |
| Zone of proximal development | The gap between independent and assisted performance | The construct DA is designed to measure |
Applications
Dynamic assessment is used wherever a static score is suspected of missing real potential. In special education, it has been proposed as a more equitable basis for identifying learning difficulties and, increasingly, as the conceptual partner of Response to Intervention, since both ask how a learner responds to instruction rather than how they rank at a single moment (Grigorenko, 2009). In second- and foreign-language education, dynamic assessment has become a substantial research program: because language ability is visibly emergent, mediation during assessment can both diagnose what a learner is ready to acquire and promote it at the same time (Poehner, 2008; Lantolf & Poehner, 2004). It has also been applied with young children, in cross-cultural settings where unfamiliar test content penalizes some groups, and in speech-language pathology, where responsiveness to prompting helps distinguish a genuine disorder from a difference in experience (Haywood & Lidz, 2007).
Contemporary Research
Modern work has pushed dynamic assessment toward greater rigor and reach. A major thread is computerized dynamic assessment (C-DA), in which graduated hints are delivered automatically by software: this standardizes the mediation, makes administration scalable, and records each learner's responsiveness precisely, addressing the old complaint that dynamic assessment is too labor-intensive to use widely (Poehner & Lantolf, 2013). Language education remains the most active application area, with continuing innovation in computerized, group, and classroom formats and a widening evidence base across diverse settings (Poehner, 2008; Poehner & Lantolf, 2023). A parallel European tradition has paired dynamic testing with individualized instruction, asking not only whether it measures potential but whether it actually improves teaching (Resing, 2013). On the evidentiary side, the case rests less on a single dramatic statistic than on a recurring pattern: graduated-prompt measures that score how much help a learner needs to reach a criterion have been shown to forecast later learning beyond what static scores predict (Brown & Ferrara, 1985), and syntheses of the experimental literature confirm that dynamic measures can add such predictive information — while documenting how widely the size of that benefit varies with design, population, and outcome, a reminder that "dynamic assessment" names a family of quite different procedures rather than one technique (Swanson & Lussier, 2001; Grigorenko & Sternberg, 1998).
Criticisms and Open Questions
The approach faces persistent and substantive criticism. The deepest is psychometric: a long-standing measurement literature warns that gain and difference scores are inherently hard to make reliable and tend to correlate negatively with initial standing, so any score built on pretest-to-posttest change inherits a real liability (Cronbach & Furby, 1970). Compounding this, the very individualization that gives clinical dynamic assessment its richness undermines the standardization that reliability and fair comparison require — so each tradition is strong exactly where the other is weak (Grigorenko & Sternberg, 1998; Sternberg & Grigorenko, 2002). A second concern is practicality: dynamic assessment is time-consuming and demands skilled, well-trained examiners, which has limited its routine use despite decades of advocacy (Haywood & Lidz, 2007); reviewing the field's progress, Julian Elliott observed that despite its strong intuitive appeal to psychologists and teachers, dynamic assessment had largely failed to take root in mainstream educational practice (Elliott, 2003). A third is evidential: whether dynamic measures reliably predict later learning better than good static tests, and by enough to justify their cost, remains contested and varies across studies (Swanson & Lussier, 2001). Underlying all of these is the unresolved trade-off between standardization and individualization — arguably less a flaw to be fixed than a permanent tension built into the attempt to measure learning while also producing it (Lantolf & Poehner, 2004).
Key Researchers
- Lev S. Vygotsky (1896–1934) — Originated the zone of proximal development and the argument that assisted performance, not unaided performance alone, reveals a learner's developmental potential — the conceptual basis of dynamic assessment (Vygotsky, 1978).
- Reuven Feuerstein (1921–2014) — Built dynamic assessment into a working clinical method through the Learning Potential Assessment Device, mediated learning experience, and the theory of structural cognitive modifiability, motivated by a conviction that intelligence is modifiable (Feuerstein, Rand, & Hoffman, 1979).
- Ann L. Brown (1943–1999) — Developed, with her colleagues, the graduated-prompts method of diagnosing the zone of proximal development — an influential standardized form of dynamic assessment, and an early demonstration that it can forecast learning beyond static tests (Brown & Ferrara, 1985).
- Robert J. Sternberg — Cornell University (Professor of Human Development); with Grigorenko, produced the major synthesis of "dynamic testing," the standardized, psychometric form of the approach (Sternberg & Grigorenko, 2002).
Faculty - Elena L. Grigorenko — University of Houston (Hugh Roy and Lillie Cranz Cullen Distinguished Professor of Psychology); co-authored the leading review of dynamic testing and connected the approach to response to intervention in schools (Grigorenko & Sternberg, 1998; Grigorenko, 2009).
Google Scholar · Faculty - Matthew E. Poehner — Pennsylvania State University (Professor of Education, World Languages Education and Applied Linguistics); developed dynamic assessment as a major approach in second-language education, including its computerized form (Poehner, 2008; Poehner & Lantolf, 2013).
Faculty
Key Terms
| Term | Meaning |
|---|---|
| Dynamic assessment | An interactive test–intervene–retest approach that measures a learner's capacity to learn, not only current performance. |
| Static (conventional) assessment | A one-shot test of unaided performance under standardized conditions. |
| Mediation | The teaching, hints, prompts, and feedback an examiner provides during a dynamic assessment. |
| Responsiveness to mediation | How much, and how readily, a learner improves in response to help — the core dynamic measure. |
| Learning potential | An estimate of what a learner is ready to acquire, inferred from their response to mediation. |
| Zone of proximal development | The gap between what a learner can do alone and what they can do with help; dynamic assessment's target. |
| Learning Potential Assessment Device (LPAD) | Feuerstein's set of dynamic assessment instruments and procedures. |
| Structural cognitive modifiability | Feuerstein's theory that cognitive functioning is fundamentally open to change through mediation. |
| Interventionist approach | Standardized dynamic assessment using fixed graduated prompts and quantified gain ("dynamic testing"). |
| Interactionist approach | Open-ended, clinical dynamic assessment in which mediation is individualized to the learner. |
| Computerized dynamic assessment (C-DA) | Dynamic assessment in which graduated mediation is delivered and scored automatically by software. |
| Graduated prompts | A standardized sequence of increasingly explicit hints; the number a learner needs to reach a criterion serves as the dynamic measure. |
Frequently Asked Questions
What is dynamic assessment?
Dynamic assessment is an interactive approach to testing that follows a test–intervene–retest pattern: the examiner assesses the learner, teaches and prompts them, then assesses again, measuring how much and how readily they improve. It aims to capture the capacity to learn rather than only current, unaided performance (Haywood & Lidz, 2007; Sternberg & Grigorenko, 2002).
How is dynamic assessment different from a normal (static) test?
A static test measures what a learner can do alone, in one attempt, with no help. Dynamic assessment deliberately adds help during the assessment and treats the learner's response to that help as the key result — so it estimates potential, not just present standing (Vygotsky, 1978; Feuerstein, Rand, & Hoffman, 1979).
What does a dynamic assessment actually look like?
Typically three phases: a pretest of unaided performance, a mediation phase in which the examiner teaches and offers graduated prompts, and a retest on similar or new problems. The score reflects the gain and how much mediation it required (Haywood & Lidz, 2007).
What is the difference between "dynamic assessment" and "dynamic testing"?
Sternberg and Grigorenko use "dynamic testing" for the standardized, psychometric version, with fixed prompts and comparable scores, and treat "dynamic assessment" as the broader umbrella that also includes open-ended, individualized clinical approaches like Feuerstein's (Grigorenko & Sternberg, 1998; Sternberg & Grigorenko, 2002).
What is dynamic assessment used for?
It is used to identify learning potential that static tests may miss — in special education and response to intervention, in second-language assessment, with young children, and in cross-cultural settings where unfamiliar content can penalize some learners (Grigorenko, 2009; Poehner, 2008).
What are the main criticisms of dynamic assessment?
That change and gain scores are hard to make reliable; that standardizing mediation sacrifices the individualization that is its strength; that it is time-consuming and demands skilled examiners; and that its advantage over good static tests in predicting later learning is still debated (Grigorenko & Sternberg, 1998; Swanson & Lussier, 2001).
References
| 1 | Brown, A. L., & Ferrara, R. A. (1985). Diagnosing zones of proximal development. In J. V. Wertsch (Ed.), Culture, communication, and cognition: Vygotskian perspectives (pp. 273–305). Cambridge University Press. |
| 2 | Budoff, M. (1974). Learning potential and educability among the educable mentally retarded. Research Institute for Educational Problems, Cambridge Mental Health Association. |
| 3 | Cronbach, L. J., & Furby, L. (1970). How we should measure "change" — or should we? Psychological Bulletin, 74(1), 68–80. |
| 4 | Elliott, J. G. (2003). Dynamic assessment in educational settings: Realising potential. Educational Review, 55(1), 15–32. https://doi.org/10.1080/00131910303253 |
| 5 | Feuerstein, R., Rand, Y., & Hoffman, M. B. (1979). The dynamic assessment of retarded performers: The Learning Potential Assessment Device, theory, instruments, and techniques. University Park Press. |
| 6 | Grigorenko, E. L. (2009). Dynamic assessment and response to intervention: Two sides of one coin. Journal of Learning Disabilities, 42(2), 111–132. https://doi.org/10.1177/0022219408326207 |
| 7 | Grigorenko, E. L., & Sternberg, R. J. (1998). Dynamic testing. Psychological Bulletin, 124(1), 75–111. |
| 8 | Haywood, H. C., & Lidz, C. S. (2007). Dynamic assessment in practice: Clinical and educational applications. Cambridge University Press. https://doi.org/10.1017/CBO9780511607516 |
| 9 | Lantolf, J. P., & Poehner, M. E. (2004). Dynamic assessment of L2 development: Bringing the past into the future. Journal of Applied Linguistics, 1(1), 49–74. |
| 10 | Poehner, M. E. (2008). Dynamic assessment: A Vygotskian approach to understanding and promoting second language development. Springer. |
| 11 | Poehner, M. E., & Lantolf, J. P. (2013). Bringing the ZPD into the equation: Capturing L2 development during computerized dynamic assessment (C-DA). Language Teaching Research, 17(3), 323–342. https://doi.org/10.1177/1362168813482935 |
| 12 | Poehner, M. E., & Lantolf, J. P. (2023). Advancing L2 dynamic assessment: Innovations in Chinese contexts. Language Assessment Quarterly, 20(1), 1–19. https://doi.org/10.1080/15434303.2022.2158465 |
| 13 | Resing, W. C. M. (2013). Dynamic testing and individualized instruction: Helpful in cognitive education? Journal of Cognitive Education and Psychology, 12(1), 81–95. https://doi.org/10.1891/1945-8959.12.1.81 |
| 14 | Sternberg, R. J., & Grigorenko, E. L. (2002). Dynamic testing: The nature and measurement of learning potential. Cambridge University Press. |
| 15 | Swanson, H. L., & Lussier, C. M. (2001). A selective synthesis of the experimental literature on dynamic assessment. Review of Educational Research, 71(2), 321–363. |
| 16 | Vygotsky, L. S. (1978). Mind in society: The development of higher psychological processes (M. Cole, V. John-Steiner, S. Scribner, & E. Souberman, Eds.). Harvard University Press. https://doi.org/10.2307/j.ctvjf9vz4 |
| 17 | Vygotsky, L. S. (1986). Thought and language (A. Kozulin, Ed.; E. Hanfmann & G. Vakar, Trans.). MIT Press. (Original work published 1934) |