ConductCognition

Test library

Cognitive tests you can run online

54 tests across 8 cognitive domains, each scored automatically when it ends. 33 are timed. Every account can run any test, with 10 free participants to start. We also build custom tests for your study.

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Processing speed: 4 tests

How quickly people take in information and respond.

Simple Reaction Time

Measures basic processing speed by asking participants to respond as quickly as possible when a stimulus appears on screen.

Main score: Mean Reaction Time (ms)

2-3 minTimed: mouse or trackpadEnglish and Italian

Symbol Coding

Measures processing speed and visual-motor mapping by requiring rapid symbol-to-key matching under time pressure.

Main score: Throughput (correct/min)

4-5 minTimed: mouse or trackpadEnglish and Italian

Trail Making Test A

Measures processing speed and visual scanning by asking participants to connect numbered circles in ascending order as quickly as possible.

Main score: Completion Time (ms)

2-3 minTimed: mouse or trackpadEnglish and Italian

Serial Reaction Time

Measures implicit sequence learning. One of four boxes lights up and participants press its key. A repeating 10-step sequence is replaced by a random block near the end, and the slowdown in that block shows how much of the sequence was learned.

Main score: Sequence Learning Effect (ms)

3-4 minTimed: mouse or trackpadEnglish and Italian

Attention: 11 tests

Keeping attention on a task and picking out what matters.

Choice Reaction Time

Measures attention and decision speed by requiring participants to select the correct response based on which stimulus appears.

Main score: Mean Reaction Time (ms)

3-4 minTimed: mouse or trackpadEnglish and Italian

Psychomotor Vigilance Task

Measures sustained attention by requiring rapid responses to infrequent visual targets over variable waiting intervals.

Main score: Mean Reaction Time (ms)

4-6 minTimed: mouse or trackpadEnglish and Italian

Rapid Visual Information Processing

Measures sustained attention and vigilance by asking participants to detect target digit sequences in a rapid stream.

Main score: A-prime (score)

4-5 minTimed: mouse or trackpadEnglish

Continuous Performance Test

Measures sustained attention by asking participants to respond to target letters and withhold responses to non-target letters across a continuous stream.

Main score: d-Prime (d')

6-9 minTimed: mouse or trackpadEnglish and Italian

Visual Search Test

Measures selective visual attention by asking participants to detect a target among distractors across set sizes.

Main score: Conjunction Search Slope (ms/item)

5-7 minTimed: mouse or trackpadEnglish and Italian

Eriksen Flanker Task

Measures selective attention and cognitive control by requiring participants to identify the direction of a central arrow while ignoring flanking arrows.

Main score: Flanker Effect (ms)

4-5 minTimed: mouse or trackpadEnglish and Italian

Posner Cueing

Measures how quickly attention shifts to a location that briefly flashes. Response times to a dot in the flashed box (valid cue) are compared with the other box (invalid cue) and with trials where both boxes flash (neutral cue).

Main score: Orienting Cost (ms)

3-4 minTimed: mouse or trackpadEnglish and Italian

Sustained Attention to Response

Measures sustained attention and response inhibition. Digits 1 to 9 appear at a fixed pace, and participants press for every digit except 3, which appears on about 11% of trials.

Main score: Commission Errors (count)

5-7 minTimed: mouse or trackpadEnglish and Italian

Navon Global-Local Task

Measures attention to the whole and to its parts. A large H or S is made of small H or S letters. Participants name the large letter in one block and the small letters in the other, pressing S or H.

Main score: Global Advantage (ms)

3-5 minTimed: mouse or trackpadEnglish and Italian

Dot-Probe Task

Measures whether attention is drawn toward threatening words. A threat word and a neutral word flash above and below a cross, then a dot appears where one of them was and participants report its position with the arrow keys.

Main score: Attentional Bias (ms)

3-5 minTimed: mouse or trackpadNo percentileEnglish and Italian

Emotional Stroop Task

Measures how much emotional words slow color naming. Negative, positive and neutral words appear in red, green, blue or yellow ink, and participants press the key for the ink color, ignoring the word.

Main score: Emotional Interference (ms)

3-5 minTimed: mouse or trackpadNo percentileEnglish and Italian

Working memory: 8 tests

Holding and updating information for a few seconds.

1-Back Task

Measures working memory by requiring participants to indicate whether the current stimulus matches the one presented N items ago.

Main score: d-Prime (d')

3-4 minTimed: mouse or trackpadEnglish and Italian

2-Back Task

Measures working memory by requiring participants to indicate whether the current stimulus matches the one presented N items ago.

Main score: d-Prime (d')

3-4 minTimed: mouse or trackpadEnglish and Italian

Digit Span Test

Measures verbal working memory capacity by asking participants to recall sequences of digits in forward and backward order.

Main score: Forward Span (score)

5-7 minUntimedEnglish and Italian

Corsi Block-Tapping Test

Measures visuospatial short-term and working memory by asking participants to reproduce sequences across a fixed nine-block layout.

Main score: Forward Span (score)

5-8 minUntimedEnglish and Italian

Spatial Working Memory

Measures spatial working memory and search strategy by asking participants to find hidden tokens in boxes while avoiding boxes where tokens were already found.

Main score: Between-Search Errors (count)

6-8 minTimed: mouse or trackpadEnglish

Mental Rotation

Measures mental rotation. Participants judge whether a turned shape is the same as an upright shape or its mirror image.

Main score: Rotation Slope (ms/degree)

3-5 minTimed: mouse or trackpadEnglish and Italian

Change Detection

Estimates visual working-memory capacity. Participants see 2 to 8 colored squares for 100 ms and, after a 900 ms blank, report whether one square changed color.

Main score: Capacity (Cowan's K) (items)

3-5 minTimed: mouse or trackpadEnglish and Italian

Operation Span

Measures working memory capacity with the automated operation span procedure. Participants check simple math problems while remembering letters, then recall the letters in order.

Main score: Partial Span Score (count)

15-25 minUntimedPercentileEnglish and Italian

Executive function: 16 tests

Planning, switching rules, handling conflict and making decisions.

Dimensional Change Card Sort

Measures cognitive flexibility by asking participants to match cards by color or shape as the sorting rule changes.

Main score: Overall Accuracy (proportion)

5-7 minTimed: mouse or trackpadEnglish and Italian

Card Sorting Test (Berg)

Measures set shifting and perseveration. Participants sort cards by color, shape or number, learn the rule from Right and Wrong feedback, and have to notice when it changes without warning.

Main score: Perseverative Errors (count)

6-10 minUntimedEnglish and Italian

Task Switching Test

Measures task-set switching by cueing participants to classify digits by parity or magnitude.

Main score: Switch Cost RT (ms)

6-8 minTimed: mouse or trackpadPercentileEnglish and Italian

Stroop Color-Word Test

Measures cognitive inhibition by asking participants to identify the ink color of color words, creating interference between reading and color naming.

Main score: Stroop Effect (ms)

4-6 minTimed: mouse or trackpadEnglish

Intra/Extra Dimensional Set Shift

Measures cognitive flexibility and attentional set-shifting with criterion-based discrimination, reversal, intra-dimensional shift, and extra-dimensional shift stages.

Main score: Stages Completed (count)

8-12 minTimed: mouse or trackpadEnglish

Trail Making Test B

Measures executive function and cognitive flexibility by asking participants to alternate between numbers and letters (1-A-2-B-3-C...).

Main score: Completion Time (ms)

3-5 minTimed: mouse or trackpadEnglish and Italian

One-Touch Tower Planning

Measures planning by asking participants to judge the minimum number of moves needed to transform one Tower of London arrangement into another.

Main score: First-Choice Solved (count)

5-6 minUntimedEnglish

Matrix Reasoning

Measures nonverbal reasoning with 3 by 3 visual matrices generated for each session. Shapes change in number, size, rotation, fill and color by row and column rules.

Main score: Accuracy (proportion)

7-10 minUntimedEnglish and Italian

Simon Task

Measures interference from a location that is irrelevant to the task. Participants press the key for a red or blue square's color while the square appears left or right of center. Half of sessions use F for red and J for blue, the other half the reverse.

Main score: Simon Effect (ms)

2-4 minTimed: mouse or trackpadEnglish and Italian

Delay Discounting

Measures how much a delay lowers the value of money, using adjusting choices between an amount today and $100 later.

Main score: Area Under the Curve (proportion)

3-5 minUntimedEnglish and Italian

Probabilistic Reversal Learning

Measures reward learning and flexibility when the better of two symbols switches without warning.

Main score: Perseverative Errors (count)

4-6 minUntimedEnglish and Italian

Iowa Gambling Lite

Measures decision making under uncertainty with four card decks that differ in long-run gains and losses.

Main score: Net Score (count)

6-9 minUntimedEnglish and Italian

Balloon Risk

Measures risk taking as participants pump balloons for points and decide when to collect before a pop.

Main score: Adjusted Average Pumps (pumps)

5-9 minUntimedEnglish and Italian

Tower Planning

Measures planning with Tower of London puzzles. Participants move three balls between pegs to match a goal in as few moves as possible.

Main score: Excess Moves (moves)

6-9 minUntimedEnglish and Italian

Verbal Fluency

Measures letter fluency. Participants type as many words as they can that start with F, A and S, with 60 seconds per letter by default.

Main score: Unique Valid Words (count)

4-6 minUntimedEnglish and Italian

Clock Drawing Task

Captures command and optional copy clock drawings as timestamped browser-native strokes for reproducible process analysis.

Main score: Total Elapsed Time (ms)

3-6 minUntimedNo percentileEnglish and Italian

Episodic memory: 9 tests

Learning material and later recalling or recognizing it.

Recognition Memory Test

Measures episodic recognition by asking participants to identify studied words among matched new words.

Main score: Recognition d-prime (score)

5-7 minTimed: mouse or trackpadEnglish and Italian

Delayed Recall Module

Measures delayed verbal recall and retention after an encoded word list and delay interval.

Main score: Delayed Recall (count)

6-10 minUntimedEnglish and Italian

Paired Associate Learning

Measures visuospatial episodic memory by asking participants to learn and recall the locations of patterns hidden in boxes on a grid.

Main score: Total Errors (count)

6-8 minUntimedEnglish and Italian

Delayed Match-to-Sample

Measures visual recognition memory by showing a sample pattern, imposing a delay, then asking participants to identify the matching pattern among alternatives.

Main score: Percent Correct (proportion)

5-6 minUntimedEnglish

Pattern Recognition Memory

Measures visual pattern recognition by asking participants to recognize previously studied abstract patterns among novel foils.

Main score: Percent Correct (proportion)

4-5 minUntimedEnglish

Spatial Recognition Memory

Measures spatial recognition memory by asking participants to recognize previously presented screen locations.

Main score: Percent Correct (proportion)

4-5 minUntimedEnglish

Short Story Recall

Measures verbal episodic memory with a brief narrative, free recall, and recognition questions in the participant language.

Main score: Recognition Accuracy (proportion)

4-6 minUntimedEnglish and Italian

Verbal Learning

Measures list-learning across repeated study and recall trials, followed by recognition questions in the participant language.

Main score: Total Correct Recall (count)

6-8 minUntimedEnglish and Italian

Category Fluency

Measures semantic category fluency. Participants type as many animals, and then fruits and vegetables, as they can, with 60 seconds per category by default.

Main score: Unique Valid Words (count)

3-5 minUntimedEnglish and Italian

Response inhibition: 3 tests

Stopping or holding back a response.

Stop-Signal Task

Measures action cancellation by asking participants to make speeded left/right responses and withhold the response when a stop signal appears.

Main score: Stop-Signal Reaction Time (ms)

5-7 minTimed: mouse or trackpadEnglish and Italian

Go/No-Go Task

Measures response inhibition by requiring participants to respond to 'go' stimuli and withhold responses to 'no-go' stimuli.

Main score: d-Prime (d')

4-5 minTimed: mouse or trackpadEnglish and Italian

Affective Go/No-Go

Measures affective response inhibition by asking participants to respond to words from one emotional valence while withholding responses to the other.

Main score: Affective Shift Cost (ms)

5-6 minTimed: mouse or trackpadEnglish

Social cognition: 1 test

Reading and responding to social information.

Implicit Association Test (IAT)

Measures how strongly two concepts are linked in memory from how fast people sort words when the concepts share a response key. The default version pairs flowers and insects with pleasant and unpleasant words.

Main score: D Score (score)

5-7 minTimed: mouse or trackpadNo percentileEnglish and Italian

Language: 2 tests

Recognizing words and using what they mean.

Lexical Decision Task

Measures how quickly people recognize written words. A string of letters appears and participants decide whether it is an English word, pressing F or J. Half the strings are common or rare words and half are pronounceable nonwords.

Main score: Word RT (ms)

3-5 minTimed: mouse or trackpadEnglish and Italian

Semantic Priming Task

Measures how a word's meaning speeds recognition of a related word. A prime word flashes for 150 ms, then participants decide whether the next string of letters is an English word. Word targets follow a related or an unrelated prime.

Main score: Priming Effect (ms)

3-5 minTimed: mouse or trackpadNo percentileEnglish and Italian

Starter templates

Templates in the study wizard. Start from one and add, remove or reorder tests.

Guides for common tests

Longer guides cover the Trail Making Test and the n-back task. How percentiles work: test norms. Recruiting online: setup guides for Prolific, Sona, CloudResearch and Qualtrics. What you can change in each test: test settings.

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