Short-Term Memory Test
Test your short-term memory capacity with this free assessment. Evaluate how well you retain and recall information over brief periods.
Understanding short-term memory
Short-term memory (STM) refers to the system that holds a limited amount of information in mind for a brief period — typically seconds to minutes. It's the 'working surface' of cognition: the place where information stays while you're actively using it.
The classic estimate of short-term memory capacity is 7±2 items (Miller's Law), though more recent research suggests the true limit may be closer to 4 chunks. Chunking — grouping items into meaningful units — significantly extends effective STM capacity.
Short-term memory is the first place affected by inattention, stress, sleep deprivation, and early cognitive decline. Testing it is a useful window into overall cognitive health.
How to Interpret Your Results
| Score Range | Category | What it means |
|---|---|---|
| 0–10 | Strong | Your short-term memory appears to function well. You have good information retention over brief periods. |
| 11–20 | Average | Your short-term memory is within the average range. Some forgetfulness is completely normal. |
| 21–30 | Below Average | Your responses suggest some short-term memory difficulties. Strategies like repetition and chunking information may help. |
| 31–40 | Significant Difficulty | Your responses indicate notable short-term memory challenges. Consider discussing this with a healthcare provider. |
Frequently Asked Questions
What's the difference between short-term and working memory?
Short-term memory is passive storage (holding information briefly). Working memory involves actively manipulating that information while holding it. Working memory is the more functionally important system.
Does short-term memory decline with age?
Yes, gradually. Processing speed and short-term storage capacity typically reduce from the 60s onwards. This is normal — significant impairment is different from age-related change.