TL;DR
Get health and wellness essentials delivered free — and shop member deals
- Fast, free delivery on millions of items
- Access to Prime Big Deal Days deals on October 6–7
- Prime Video, Amazon Music and more included
In a September 29, 2026, Being Patient article, geriatrician Nathaniel Chin argues that repeat cognitive testing can show whether a person’s performance is changing over time. He says results need to be interpreted alongside personal baselines, testing conditions and multiple thinking abilities; repeat tests also have limits, including familiarity with test material.
Geriatrician Nathaniel Chin argues that repeating cognitive tests over months or years can help clinicians assess whether a patient’s thinking is changing, a question a single score may not answer. In a September 29 article for Being Patient, Chin says comparisons with a person’s own earlier results can add context to comparisons with age-based norms, particularly when evaluating possible neurodegenerative disease.
Many cognitive tests compare a person’s score with results from a normative group, often people of a similar age and, depending on the test, similar education or demographic backgrounds. Chin says this can help show whether a score falls within an expected range, but it does not establish whether the result represents a change for that individual. A person can have a meaningful decline while still scoring within the typical range, he writes, while a below-average score may reflect a longstanding pattern.
Chin recommends assessments that cover several areas of thinking, including memory, attention, language, executive function, processing speed and visuospatial abilities. A brief memory screen may miss changes in other abilities, and a broader pattern can help clinicians consider causes beyond Alzheimer’s disease. He also notes that sleep, anxiety, depression, stress, medication, illness and an unusually difficult day can affect performance at one evaluation.
In his account, repeat results provide additional context: stable or improved performance may lead clinicians to consider factors that can affect cognition, while consistent decline across evaluations may raise greater concern about an underlying neurodegenerative process. Chin cautions that repeat testing can also produce higher scores because someone has seen the material before. He says the time between assessments and the use of alternate versions of tasks matter.
How Personal Baselines Change Interpretation
The article highlights a practical distinction for patients and clinicians: a test score describes performance at one point, while change over time can help show whether that performance is unusual for the individual. This may matter when a result is borderline, unexpected or difficult to interpret because of circumstances on the day of testing.
That distinction can affect what questions follow an assessment. Rather than relying only on whether a score is statistically typical, clinicians can consider a patient’s history and compare later results with an established baseline. Chin’s argument is that this fuller view may provide more useful evidence when evaluating possible cognitive decline, although repeat testing alone does not identify a diagnosis or its cause.
A Broader View of Cognitive Change
Chin is a geriatrician and memory-care physician at UW Health and an associate professor in the University of Wisconsin–Madison’s Department of Medicine. He also serves as medical director and Clinical Core co-leader of the Wisconsin Alzheimer’s Disease Research Center, according to his Being Patient article.
His article places repeat assessments within a shift toward attention to subtle cognitive changes, rather than waiting until impairment is obvious in daily life. It refers to subjective cognitive decline, when people notice changes in their memory or thinking, and mild cognitive impairment. The supplied article text ends as it begins to discuss these concepts, so it does not provide further detail about how they are assessed or managed.
What Test Scores Cannot Establish
The article does not present study data or quantify how accurately repeat testing identifies decline. It also does not set out a recommended testing interval. Chin says the interval matters because familiarity with test material can affect later scores, but the supplied text gives no specific schedule.
A pattern of decline may raise concern, in Chin’s account, but the article does not say that repeat testing by itself confirms Alzheimer’s disease or another condition. The causes of a change, the role of clinical history and the interpretation of results remain matters for an individual evaluation. The provided source text also cuts off during its discussion of subjective cognitive decline and mild cognitive impairment.
Follow-Up Testing and Clinical Review
For people being evaluated, Chin’s article points to follow-up assessments as one way clinicians can compare results over time. The next step described is not a specific new test or policy announcement; it is a broader evaluation that considers several cognitive abilities, prior performance and circumstances that may have influenced a score.
Further details about timing, test selection and how clinicians apply repeat results would be needed to turn the article’s perspective into a specific testing plan. Chin’s source article offers no new clinical guideline or announced change in practice.
Key Questions
Why can one cognitive test be hard to interpret?
A single result reflects performance on one occasion. Chin says sleep, stress, mood, medication, illness and other conditions can affect scores, while an individual’s longstanding strengths and weaknesses may differ from group averages.
What can repeat testing add?
Comparing results with an earlier personal baseline can help clinicians assess whether performance appears stable or is changing. Chin says a consistent decline may raise concern, but repeat testing alone does not establish a diagnosis.
Which thinking abilities should an assessment cover?
Chin names memory, attention, language, executive function, processing speed and visuospatial abilities. He says broader testing can show patterns that a brief memory screen might miss.
Can scores improve on a second test even if thinking has not changed?
Yes. Chin notes that familiarity with test material can raise later scores. He says the time between assessments and alternate versions of tasks are relevant to interpreting repeat results.
Source: rss
Halloween Picks
halloween
As an affiliate, we earn on qualifying purchases.
