Gorilla Demos and Examples List

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Classic Examples


Popular Classic Examples

Try out our top 3 most popular Classic Examples:

Semantic Priming

View a Classic semantic priming task; targets are paired with related or neutral primes. The semantic priming effect is the difference in RT and accuracy a related prime produces.
Reference: Wikipedia

The Big 5 Personality TIPI

View the Classic Ten Item Personality Inventory (TIPI) Questionnaire of the Big 5 Personality Measure.
Reference: Wikipedia
Link Reference: GozLab-TIPI

Stroop Task

Classic Stroop Task, in which colour names mismatch and match their text colour. Desktop version uses keyboard input. Mobile version uses touch buttons.
Reference: Wikipedia


Full Classic Examples List


Attention:

Below are some classic attention tasks.

Change Blindness

This is a classic 'Change Blindness' Task. Measure how long it takes participants to spot the difference!

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Dot Probe

The dot-probe is a classic task used to assess selective attention.

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Flanker

The classic Flanker Task (or Eriksen Flanker Task), is a 'response inhibition' test used to assess participants ability to suppress responses.

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Go / No-Go Task (Children)

This Inattention and Impulsivity experiment is based on a lab study conducted by Serena Bezdjian, Laura A. Baker, Dora Isabel Lozano, and Adrian Raine in 2009 on twins aged 9 and 10. Reference: Bezdjian et al. (2009)

Mackworth Clock Task

This tests vigilance, a prolonged state of concentration. Participants must stare at the image of a ticking clock and identify when the second hand jumps more than it should. This example has a jump rate of around 8% and lasts a minute, whereas a full task would jump around 0.5% of the time, and last much longer. Reference: Mackworth (1948)

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Posner Cueing Task

This spatial orientation task measures the effects of cueing on reaction times to target stimuli. This example requires the participant to press one of two keys when a green 'thumbs up’ appears in the corresponding box. 75% of the time, a green circle will appear in the correct box before the stimulus appears. Reference: Wikipedia

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Sustained Attention Test

A classic sustained attention reaction test (or SART).

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Attitudes:

Below are some classic attitude tasks. To see some IAT data and analysis collected using Gorilla, see this study.

Implicit Association Tests (IAT):

IAT: 'Pictures and Pictures'

View a classic Implicit Association Test; Category sorting task, categories of images are paired with another category of interest. Differences in accuracy and RT used to potentially measure implicit bias.

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IAT: 'Pictures and Words'

View a classic Implicit Association Test; Category sorting task, strength of association between categories of images and word categories. Difference in accuracy and RT used to potentially measure implicit bias.

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IAT: 'Words and Words'

View a classic Implicit Association Test; Category sorting task, strength of association between two sets of word categories . Difference in accuracy and RT used to potentially measure implicit bias.

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IAT: 'Age'

View a classic Implicit Association Test; compares your RT and Accuracy to categorising different aged people against positive and negative words. This is potentially a measure of implicit bias towards groups.

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Other Attitude Tasks:

Semantic Priming

View a Classic semantic priming task; targets are paired with related or neutral primes. The semantic priming effect is the difference in RT and Accuracy a related prime produces.

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Cognition:

Below is a classic cognition task:

Deary-Liewald Task

This keyboard task measures response time and choice response times, which correlate with general intelligence.

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Relational Reasoning

This classic task assesses your ability to complete patterns across shape and colour, the participant has to choose an object to complete a puzzle display. Choose between a short demonstration version and a longer 80 trial version with varying difficulty levels.

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Decision Making:

Below are some classic decision making tasks:

Delay Discount

This task assesses the relative weighting a participant puts on reward at different time periods. Will they accept a delay in receiving a reward for a greater gain.

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Teen Risk Judgement

Measures a teenager's judgement of risky situations, before and after feedback on how different groups rate the risk of these situations.

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Urn Task

An evidence accumulation and judgement task - the participant is repeatedly asked to reveal one of two different urns. The urn contents change with each trial and the participant has to choose the urn which most likely yields a reward.

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Willingness To Pay

This task assesses how much subjects are prepared to pay for different items: This example uses snacks.

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Economic Games:

Below is a classic economic game:

Prisoner's Dilemma

This is a classic experiment in Game Theory. It assesses a person's bias towards cooperating or betraying another for gain. The participant completes multiple instances, with different outcomes given - thus introducing a learning element. Reference: Wikipedia

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Education:

Below are some education tasks:

Comprehension

This task assesses an individual's comprehension ability when reading textual information. First a segment of text is read, then participants are asked questions assessing their understanding.

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Maths Test

This type of assessment aims to quantify an individual's mathematical ability. Participants are shown different math examples in a question-answer format. They must input the correct numerical answer as quickly as possible within the timelimit.

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Vocabulary Learning & Testing

Here a number of unfamiliar words are shown (French in this example), and are paired with their familiar translations. They are then tested with all words on the screen (choose the translation by clicking), and then in a free recall stage (type in the answer).

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Executive Function:

Below are some classic executive function tasks:

Alternate Task Switching

Participants complete two different tasks that alternate every two trials. Participants typically slow down between tasks as they shift attention. In this example, one task involves identifying a shape, and the other task involves identifying the colour of that shape. Reference: Wikipedia

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Conditional Feedback

This conditional feedback task assesses how participants learn different stimulus-response mappings by rewarding certain responses to images over others. For example; response 1 pays £1 against response 2, which pays £5.

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Cued Task Switching

Participants complete two different tasks that switch frequently. This differs from alternate task switching as cues indicate which task participants must complete for each trial, rather than switching for alternate trials. In this example, participants must either identify colour or shape. Reference: Wikipedia

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Digit Span Text Entry

The Digit Span is a classic Short Term Memory (STM) task, participants are asked to repeat back increasingly lengthy sequences of numbers. The longer the sequence they are able to recall, the greater the assumed STM capacity. Reference: Wikipedia

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Probabilistic Learning - 2WFC

Participants learn associations between image stimuli which have noise associated with them. In this example participants must learn which flowers live in a forest, one flower is more likely to be correct (more probable for that forest). At the end of learning participants have to choose the correct flower (the more probable one). Reference: Wikipedia

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Probabilistic Learning - Round Feedback

This probabilistic learning task comprises separate 'rounds' which assess the participants ability to learn from uncertain information. You receive feedback after each response - which is only accurate to a certain probability. At the end of each round you are given feedback on the actual total number of correct responses. Reference: Wikipedia

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Simon Task (Stimulus-Response Compatibility)

Measures the stimulus-response compatibility effect. This version is a left-right location task, where word and location match and mismatch. Mismatched trials typically have longer response times than matched trials. Reference: Wikipedia

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Spatial n-back

This n-back task requires participants to respond when any given item is repeated in a sequence n instances ago. So on a 1-back trial repeated targets would require a response, 2-back would have another item inbetween, and 3-back would have 2 items in between. Reference: Wikipedia

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Stop Signal Delay

Participants must respond, within a certain time window, to a cue on screen, however a delayed stop signal is shown on some trials - which requires no response at all. This aims to measure response inhibition of the participant. Reference: [Paper PDF] Logan, G.D, Cowan, W.B, & Davis, K.A. (1984 Apr). J Exp Psychol Hum Percept Perform. 10(2):276-291.

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Stroop Task

Classic Stroop Task, in which colour names mismatch and match their text colour.Desktop version uses keyboard input. Mobile version uses touch buttons. Reference: Wikipedia

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Wisconsin Card Sorting Task

Designed to measure the ability to adapt to changing conditions of reinforcement, or ‘set-shifting’. Participants must identify a rule to correctly match a sample card to four options. This rule is not stated and shifts every 10 cards. In this example, the rule shifts every 4 cards. Reference: Wikipedia

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Language:

Below are some classic Language tasks:

Audio Naming Task

This naming task is comprised of a series of audio clips, after each audio clip participant's are asked to write the name of the word they heard. Here we use simple yes, no instructive words. This task can be made more difficult with the use of more complex audio clips including; accents, audio distortion or longer sentence recall.

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Categorisation Task

This task requires participant's to categorise a target word into two semantic categories. Here we use two categories: Fish and Mammals; this allows for words which often lead to an error - for instance an aquatic mammal such as Dolphin.

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Naming Task

This naming task is comprised of a series of pictures, after each image participant's are asked to write the name of the item in the image. Here we use different animals. This task can be made more difficult with the use of more abstract images, and less concrete words.

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Memory:

Below are some classic memory tasks:

Digit Span Text Entry

The Digit Span is a classic Short Term Memory (STM) task, participants are asked to repeat back increasingly lengthy sequences of numbers. The longer the sequence they are able to recall, the greater the assumed STM capacity. Reference: Wikipedia

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Hebb Learning

Trials are presented in two stages: First a list of words are shown item-by-item. Then a grid of images are shown with each image corresponding to a word previously shown word. Participants must select the images which represent the words in the correct order. Some sequence of words are repeated more than once - this often leads to greater accuracy and shorter reaction times - termed Hebb learning. Reference: Hebb (1961) (Pages 37-51)
Reference: Wikipedia
Reference: [Paper]Page, M Angustias et al. (2006) J Exp Psychol Learning, Mem, & Cogni 32(4):716-733.

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Levels of Processing

This experiment is intended to support the Levels of Processing Framework (Craik & Tulving, 1975). Participants judge whether a target word: has a certain number of letters; rhymes with another word; is in a category; or fits in a given sentence. Relating to the levels of processing: Structural, Phonemic, Category and Sentence. Reference: [Paper] Craik, F. I. M., & Tulving, E. (1975). J Exp Psychol: General, 104(3):268-294.

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Memory Intrusion

Participants memorise a list of words, then another list is displayed sequentially - with the participant deciding if they are old (memorised) or new words. Foils can include semantically related words (i.e. 'Bed' for a word list including 'Sleep', 'Pillow', 'Night'), which encourage a false memory inclusion.

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Misinformation Effect

Research has shown that incorrect or leading post-event information can be incorporated into memory. This task is based on Loftus and Palmer’s (1974) task in which participants must make a speed judgement. The question asked differed, using one of a list of words such as ‘smashed’ ‘bumped’ or ‘hit’. The word used has been found to affect speed judgements, with ‘smashed’ eliciting a higher estimate than ‘hit’. Reference: Wikipedia

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N-Back Task (2-Back)

A memory task originally developed by Kirchner, in which participants must remember letters from N-trials ago. This version is a 2-Back task. Reference: Wikipedia

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Picture Superiority Effect

Participants are shown a variety of words and images onscreen, and then are asked to recall as many as they can. Typically, participants are more likely to remember images than words. Paivo (1973) suggested that this is due to images being dually encoded in memory – as both a word and an image. Reference: Wikipedia

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Primacy and Recency

A list of words with matching images are presented sequentially, participants then have to recall as many words as possible by typing in to a text box. This aims to replicate the primacy and recency effects in memory, where items first seen and most recently seen are more likely to be remembered.

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Post-Identification Feedback Effect

Confidence judgements regarding prior eyewitness testimony are greatly inflated when feedback is given to eyewitnesses suggesting their judgements are accurate or mistaken. In this task, participants are allocated randomly to either a feedback or no feedback condition. Participants are shown 6 images of faces alongside 6 objects. They are then asked which face was associated with one of the objects. In the feedback condition, the participants are then told ‘Well Done, you got it right!’ and then all participants are asked for a confidence judgement. Reference: [Paper] Steblay, Wells and Douglass (2014)

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Random Number Recall

This task generates a series of random numbers, which are presented to the participant. The participant then has to recall these by typing them in to a text box.

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Testing Effect

Learners who are asked to test their knowledge as part of learning, and receive feedback, perform better on subsequent long-term memory tests than learners who simply study for the same length of time. In this task, participants are asked to memorise 5 French vocabulary terms. Half the participants are given a short practice test of this knowledge, half are given more time with the word pairs. After a delay of 3 minutes, the participants then test their knowledge. Reference: Wikipedia

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Perception:

Below are some classic perception tasks:

2D Mental Rotation Task

Participants must correctly identify which of the options is a rotation of the target object. This is achieved through mental visual representation. Reference: Wikipedia

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Audio Transcription

Audio of spoken sentences are played to the participant. After each sentence the participant must rate the predictability of the sentence.

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Auditory Sentence Predictability

Audio of sentences are played to the participant, they then have to write down what they heard. The audio varies by predictability, which should then impact on the accuracy of transcription from memory.

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Navon Global Precedence

This letter finding task assesses the identification or features at a global level vs a local level. Participants have to identify whether a letter is present or not present in an image. The letter may be individual, or are made up of smaller letters, but global features typically take less time to identify. Reference: Navon, D. (1977)

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Thatcher

The Thatcher Illusion refers to a participants inability to notice the inversion of lips and eyes when a faces is presented up-side-down. Participants are shown a series of faces, some with features inverted and/or whole face inverted - participant's have to detect if the face is natural or not. Reference: Wikipedia

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Visual Search

A Visual Search task in which participants must find an item with two features, whilst being distracted by other items that each share one of those features. This conjunctive search example includes different numbers of distractor items. The more distractor items, the worse performance should be. Reference: Wikipedia

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Personality:

Below are some classic personality tasks:

The Big 5 Personality TIPI

This Questionnaire administers the Ten Item Personality Inventory (TIPI) of the Big 5 Personality Measure. This obtains scores and ratings of a persons traits: openness to experience, conscientiousness, extraversion, agreeableness, and neuroticism which are then presented in a second results questionnaire. Reference: Wikipedia

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