Which paradigms are missing?
Colleagues tell us which experiments they would like to run with their own students' data. This page collects those wishes by area and notes when one has been built.
Something missing for your teaching? Use the feedback form in the footer or write to marian.sauter@uni-ulm.de. Every wish is listed here, without names.
Memory
Serial position curve (free recall)
A list of words is shown and then recalled in any order; recall by list position shows the primacy and recency effects.
Requested2 requestsSperling's partial report (iconic memory)
A letter array is flashed, then a cue names one row; the partial report shows that more was available than the whole report suggests.
Requested1 requestRoediger–McDermott word lists (false memory)
Lists of associated words are learned; in the recognition test many are sure they saw the critical word that was never shown.
Requested1 requestSchema-driven scene memory
After a short look at a scene (an office, a kitchen), objects that fit the schema are remembered even when they were not there.
Requested1 requestEmotional memory (word list recognition)
Neutral and emotional words from a learned list are recognised among new ones; emotional content is remembered better.
Requested1 requestColour continuous report (working memory precision)
Colours are held in mind and reproduced on a colour wheel; the error distribution separates precision from guessing, as a companion to change detection.
Requested1 requestMetamemory illusion (font size effect)
Words in large print get higher judgments of learning but are not remembered better: a dissociation of judgment and memory.
Requested1 request
Language
Semantic priming in a lexical decision task
Word or non-word? A related prime (doctor → nurse) speeds the decision (Neely, 1977). Stimuli could come from the SPAML project.
Requested4 requests
Learning and conditioning
Colour-word contingency learning
Students classify the print colour of neutral words; each word appears mostly in one colour, and responses to the frequent pairings get faster (Schmidt et al., 2007). A short question at the end asks whether anyone noticed.
Requested2 requestsValence contingency learning
Neutral words are paired mostly with positive or negative words; the frequency-based learning effect and an evaluative conditioning effect can both be computed (Schmidt & De Houwer, 2012).
Requested1 requestEvaluative conditioning
Neutral stimuli that are paired with liked or disliked ones change their own rating.
Requested1 requestClassical conditioning
A demonstration of acquisition and extinction with a conditioned and an unconditioned stimulus, as far as a phone allows it.
Requested2 requestsOperant conditioning
A demonstration of how reinforcement schedules shape the rate of responding.
Requested1 requestHabituation, sensitisation, discrimination and generalisation
The basic learning phenomena of the second introductory course, for which no task exists yet.
Requested1 requestSerial reaction time task (implicit sequence learning)
Responses to a repeating sequence of positions get faster than to a random one: skill memory without awareness of the sequence.
Requested1 requestProbabilistic category learning (weather prediction task)
Cue cards predict rain or sunshine with some probability; performance improves with feedback without explicit knowledge of the rules.
Requested1 requestIowa Gambling Task
Choices between card decks with different payoff structures; the shift towards the advantageous decks shows learning from feedback.
Requested1 request
Judgment and decision making
Many of these effects compare two groups that see different versions of a problem; they need the between-subjects design listed under platform features.
Availability heuristic
Frequency judgments follow how easily examples come to mind.
Requested1 requestRepresentativeness heuristic
Probability judgments follow similarity to a stereotype rather than base rates (for example the Linda problem).
Requested1 requestAnchoring
An arbitrary number shifts later numerical estimates towards it.
Requested1 requestIllusory truth effect
Statements seen before are judged more likely to be true than new ones.
Requested1 requestMere exposure effect
Stimuli that were shown repeatedly are liked more than new ones.
Requested1 requestAssumed similarity
People assume that others share their own attitudes and preferences more than they do.
Requested1 requestFraming and loss aversion (Asian disease problem)
The same options described as gains or as losses lead to different choices.
Requested2 requestsEndowment effect (mere ownership)
Owners demand more for an object than others are willing to pay for it.
Requested1 requestTemporal discounting
Choices between a smaller reward now and a larger one later; the discount curve of the class.
Requested1 requestExpected-value paradoxes and intransitive choices
Choice problems in which preferences violate expectation × value or are intransitive (for example the Allais paradox).
Requested1 requestTransitive reasoning
Inferences over ordered relations (A is taller than B, B is taller than C); the symbolic distance effect in reaction times.
Requested1 request
Emotion and motivation
Mostly cognitive paradigms with emotional stimuli; pictures need a licensed or self-made stimulus set.
Emotional Stroop task
Naming the print colour of emotional and neutral words or pictures: emotional content slows the response.
Requested1 requestEmotional dot-probe task
A probe appears where an emotional or a neutral picture was; the reaction time difference shows attentional bias.
Requested1 requestAttentional blink with emotional stimuli
The existing attentional blink task with emotional pictures as targets: emotional targets survive the blink more often.
Requested1 requestVisual search with emotional pictures
Search for a threatening or a friendly face among others: threat is found faster.
Requested1 requestApproach-avoidance task
Positive and negative pictures are zoomed in (approach) or out (avoidance); compatible movements are faster.
Requested1 requestAffective (evaluative) priming
Two evaluative stimuli in a row, words or pictures; the second is classified as positive or negative faster when the first had the same valence.
Requested3 requests
Perception, spatial cognition and neuropsychology
Redundant target effect
Simple reactions to one dot or to two dots at once; two dots are answered a little faster.
Try itBuilt in v0.12.71 requestGabor patches (contrast and orientation thresholds)
A psychophysical staircase with Gabor patches: the detection or discrimination threshold of the class.
Requested1 requestVisual masking
A target followed by a mask at varying delays; recognition as a function of the interval.
Requested1 requestLine bisection (pseudoneglect)
Marking the middle of horizontal lines on the touch screen; healthy people err slightly to the left.
Requested1 requestCancellation task
Finding and tapping all targets among distractors; search path and omissions as in the neglect tests.
Requested1 request
Platform features
Between-subjects designs
Random assignment of the students of one session to two or more versions of a task, with the comparison of the groups on the dashboard.
Requested1 requestDigit span: two sequences per length
An option to present every list length twice, as in the standard procedure of the digit span test.
Requested1 requestLarger task display on laptops
The task area is capped at about 1024 px; on a laptop the stimuli could use more of the screen.
Requested1 request
Social cognition
Implicit Association Test
Sorting with combined categories (Greenwald et al., 1998); the reaction time difference between the two pairings is the IAT effect.
Affect misattribution procedure
A briefly shown picture is followed by a neutral symbol that is rated as pleasant or unpleasant; the picture's valence colours the rating (Payne et al., 2005).