Compare cognitive tests
Several tests sound alike but measure different things. Each comparison below explains the key difference, when to use which, and how the scores relate.
Reaction Time Test vs Visual Reaction Time Test
The Reaction Time Test measures simple reaction time — you wait for a single, predictable stimulus (the screen turning green) and click.
Reaction Time Test vs Number Reaction Test
Reaction Time tests pure reflex — click when the screen changes.
Visual Reaction Time Test vs Number Reaction Test
Visual Reaction Time uses a cued choice — a colored shape appears, and you respond based on what it is.
Sequence Memory Test vs Number Memory Test
Sequence Memory tests visual-spatial sequence recall — you watch a pattern of tiles flash, then reproduce the order by clicking.
Sequence Memory Test vs Visual Memory Test
Sequence Memory requires reproducing an ordered sequence of flashing tiles — order matters.
Number Memory Test vs Visual Memory Test
Number Memory uses verbal/numeric encoding — you read and re-type digits, leaning on the phonological loop.
Pattern Recall Test vs Sequence Memory Test
Pattern Recall shows a static grid pattern for a few seconds, then asks you to recreate it from memory all at once.
Pattern Recall Test vs Visual Memory Test
Pattern Recall asks you to reconstruct a full grid pattern after a brief preview.
Chimp Test vs Sequence Memory Test
The Chimp Test shows numbered tiles briefly, then hides them — you must click them in numerical order from memory of their positions.
Attention Span Test vs Stroop Test
The Stroop Test measures cognitive interference — responding to ink color while word meaning conflicts.
Stroop Test vs Task Switching Test
The Stroop Test measures response inhibition under a single conflicting rule (name the color, ignore the word).
Attention Span Test vs Task Switching Test
Attention Span measures vigilance — staying focused on a single rule across 60 trials and detecting infrequent targets.
Want to know what a single test measures? Browse the glossary.