The PEBL Psychological Test Battery


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About the Battery

This site is for a battery of psychological tests implemented in PEBL and distributed (and redistributeable) freely. They are designed to be easily used on multiple computing platforms, running natively under Win32, Linux, and OSX Operating Systems. The tests are designed to implement a wide range of computer-administered psychological tests and experiments of interest to neuropsychological, cognitive, clinical communities.

The current version of the battery 0.8 It is designed to work with PEBL version 0.13 and was released in 2012. It is distributed with PEBL 0.13, and is automatically installed in My Documents\pebl.0.13\battery on windows.

These tests are designed to implement a wide range of tests that are used throughout the psychological, neuropsychological research and clinical communities. Some are reimplementations of tests that are only available on limited computing platforms or cost hundreds of dollars. Each experiment saves the complete data set for later analysis, and many compute basic analyses that it writes in report format.

The following table describes the basic tests currently implemented in the PEBL Test Battery. Many of them represent the only Free version of proprietory tests available anywhere. They include a free Iowa Gambling Task, a free version of the TOVA®, a free Wisconsin Card Sort Test®, a free version of Conners Continuous Performance task, and a number of other useful tasks, with more to come. All screenshots found on this page are released into the public domain, and can be used for whatever purpose without copyright assignment, including in academic papers. More information on tests is found in the
PEBL TestVersion of:DescriptionScreenshot (click to enlarge/animate)
1. Bechera's Gambling Task Bechera's Iowa Gambling Task ®
Choose from four decks, each choice with a cost and each providing reward. Used for tests of executive control
2. The "Hungry Donkey" TaskA version of Bechera's Gambling Task for childrenThe donkey chooses from four doors, each door has a cost and reward in apples. Used for tests of executive control
3. TOAV: Test of Attentional VigilanceTOVA®: Test of Variables of Attention
22-minute test requiring subject to detect a rare visual stimulus (top or bottom). Used to diagnose ADD, ADHD, etc.
4. PEBL Continuous Performance TestCCPT: Conners Continuous Performance Task
14-minute vigilance test requiring subject respond to non-matches. Used to diagnose ADD, ADHD, etc.
5. PEBL Perceptual Vigilance Task (PPVT)Wilkinson & Houghton's Psychomotor Vigilance Task
A vigilance task used to detect vigilance and sleep lapses.
6. Berg's Card Sorting TestBerg's (1948) Wisconsin Card Sorting Test®
Sort multi-attribute cards into piles according to an unknown and changing rule.
7. Simple Response Time A common laboratory test
Detect the presence of a visual stimulus, as quickly and accurately as possible
8. Digit Span A component of many intelligence tests
Remember a sequence of digits
9. Partial Report ProcedureLu et al.'s (2005) update of Sperling's iconic memory procedure.
May provide an early-warning sign for Alzheimer's.
10. Implicit Association Test A test of automatic associations between memory representations.
Tests association between two sets of binary classifications.
11. Tower of LondonTraditional problem solving/planning task
Tests ability to make and follow plans in problem solving task.
12. Symbol Counter TaskGaravan (2000) counter taskUseful indicator of executive control
13. Four choice response time Wilkinson & Houghton's 4-choice response time
Respond to a plus sign that appears in one of four corners of the screen
14. Time WallUTCPAB's Time wall Estimate the time when a moving target will reach a location behind a wall
15. PEBL Compensatory Tracker Similar to Makeig & Jolley's CompTrackUse mouse/trackball to keep a randomly moving target inside a bullseye.
16. Lexical DecisionMeyer & Schvaneveldt's LDT
Determine whether a stimulus is a word or nonword.
17. Mental RotationShepard's mental rotation task
Determine whether two figures are identical, subject to rotation.
18. Matrix RotationUTC test battery matrix rotation Determine whether a 6x6 matrix is the same (with rotation) as another.
19. Spatial CueingPosner's attentional cueing (spotlight) task.
Given a probabilistic cue of where a stimulus will appear, respond as fast as possible.
20. Two column addition UTC test battery's 2-column addition Add three two-digit numbers and respond quickly and accurately.
21. Stroop task Stroop's attention task
Respond to either the color or name of stimuli
22. PEBL Manual Dexterity original Move a noisy cursor to the target
23. PEBL Trail-making test
Version of Reitan's (1958) Trail-making A and B tests.
Connect the dots
24. Aimed Movement (Fitts's Law) test Original
Mouse-driven implementation of classic perceptual-motor task
25. Pursuit Rotor task Classic mechanical test device Mouse-driven motor pursuit
26. Match to sample task Classic non-visual short-memory task Match a matrix pattern to one presented after a delay
27. Corsi block test Version of physical "Corsi block-tapping test" Measure of visual-spatial working memory
28. Change Detection test Version of numerous change blindness paradigms Assess whether participant sees change in a display of colored circles
29. Clock Test Mackworth's Sustained attention test Watch a clock, and respond whenever it skips a beat.
30. Device Mimicry Test Novel test Operate a 4-df etch-a-sketch to recreate paths produced by the computer
31. Item-Order Test UTCPAB test Assess two consecutive letter strings, and determine whether they are the same or different. Different trials are creating either by changing identity of a letter or the order of two adjacent letters.
32. Letter-Digit substitution UTCPAB and Wechsler tests Recode stimuli according to a letter-digit code chart
33. Math Processing UTCPAB test Do simple arithmetic problems
34. Memory Span (Visual) Classic experimental paradigm See a sequence of items, then respond using mouse or touchscreen.
35. Object Judgement Common experimental paradigm Determine whether two polygons are identical, while manipulating shape, orientation, size.
36. Pattern Comparison Test UTCPAB test Examine two grid patterns and determine whether they are the same.
37. Probability Monitor UTCPAB Test Watch a set of gauges to determine when one gets a hit.
38. Situation Awareness Test Novel design Watch a set of moving targets and respond to probes about their locations and identitiies.
39.Comfort scales Unknown Respond to four visual-analytic scales about different dimensions of comfort
40. Speed tapping test Reitan test battery Tap a key as quickly as possible
41. Time tapping test UTCPAB Test #19 Tap for a production period at a prespecified pace.
42. Tower of Hanoi test Classic puzzle and cognitive test of planning Solve game with disks.
43. Two-column addition UTCPAB test Do mental arithmetic of at least three two-digit summands.
44. Visual Search Classic paradigm Find the target amidst clutter.
45. Attentional Network Task Fan et al.'s ANT Assess three types of attention.
46. PEBL Balloon Analog Risk Task LeJuez et al's BART Assess three types of attention.
47. Dot Judgment Task Novel PEBL Task Determine which field has more dots
48. Flanker Task Eriksen's Flanker Task Make direction response with distraction
49. Go/No-go Task Bezdjian's 2009 Implementation Classic continuous performance task
50. Manikin Task UTC-PAB Manikin Task Assess mental rotation
51. TLX Workload Assessment NASA's TLX workload assessment
Assess workload of task on multiple dimensions
52. Muller-Lyer Illusion Classic perceptual illusion
Psychometric study of Illusion
53. Oddball Task Version of Huettel's implementation Respond to a stimulus dimension overshadowed by irrelevant dimension.
54. Simon Task Simon's S-R compatibility test Respond to a stimulus dimension, overshadowed by spatial location.
55. Switcher Task Original Task Respond to a matched and changing stimulus dimension.

Norms and Other Uses
Many of the original versions of the tasks we implement here have been normed on a large population. Such norms are available in published articles. Because these implementations are not identical (many of them use slightly different stimuli, response methods, timing, etc.) one must be careful when applying the results to the normed data. If you use PEBL or the PEBL Psychological Test Battery, please reference us! If you are interested in helping develop norms for PEBL tests, have access to subject populations and testing facilities, join the mailing list and tell us what norms you are most interested in.

Support and Contact info

If you have any general questions about PEBL or the PEBL Psychological Test Battery, you can contact us at: Email support is available free-of-charge. You can sign up for this email list or browse the archives here. More information about the main author is available here. Enquire on the list if you are interested in paying someone to write new experiments or modify existing ones for your needs.

Download The PEBL Test Battery 0.6 works with PEBL 0.11, and on windows is included in the installer, located in My Documents\pebl-exp.0.11\battery. For other platforms, you must download it separately; Version 0.6 can be downloaded here.