- Forward is “say it back.” Reverse asks you to reorder.
- A storage sequence interleaved with a second task (count, judge symmetry, read).
- Miller’s phrase is a historical slogan about chunks, not your web hit count.
- Span subtests can load a general factor in group data.
- Digit span, reverse Corsi lite, counting-span lite.
Forward versus reverse?
Forward is “say it back.” Reverse asks you to reorder. They correlate but are not the same item. Reverse-corsi lite is a spatial reverse toy, not a WMS board. Übung, kein klinischer IQ.
What is a complex span?
A storage sequence interleaved with a second task (count, judge symmetry, read). Counting-span lite and operation-span lite nod at that family. They are not Unsworth/Engle batteries. Übung, kein klinischer IQ.
Is “7 plus or minus 2” my score?
Miller’s phrase is a historical slogan about chunks, not your web hit count. Strategies change apparent span. Übung, kein klinischer IQ.
Does a long span mean high IQ?
Span subtests can load a general factor in group data. One browser run is not that analysis and not a deviation IQ. Übung, kein klinischer IQ.
What should I try?
Digit span, reverse Corsi lite, counting-span lite. Read the disclaimer on each page. None is a span IQ. Übung, kein klinischer IQ.
❓ Häufig gestellte Fragen
What is set shifting?
Set shifting (a cousin of cognitive flexibility) is the ability to drop one mapping and use another: colour instead of shape, number instead of letter. Laboratories study it with card sorts, trail making B, and switch-cost designs. Wisconsin-card-sort lite hides a rule and changes it; trail-making-b lite alternates 1-A-2-B. Those pages are original toys. They do not diagnose frontal injury, do not replace the WCST, and do not print a flexibility IQ. Übung, kein klinischer IQ.
What is set shifting? →What is the central executive?
In the multicomponent working-memory sketch associated with Baddeley, the “central executive” is a label for attention control: what to hold, what to drop, how to coordinate a second task. It is not a little person in the head and not an IQ index. Phonological loop and visuospatial sketchpad pages on this site cover the storage sides. Operation-span lite, keep-track lite and counting-span lite add extra work on purpose. Those originals are not a CE battery and not a clinical IQ. Übung, kein klinischer IQ.
What is the central executive? →What is a task-switching cost?
In switching experiments you repeat a rule or you change it. The difference in speed or errors is a switching cost (sometimes separated from mixing costs when blocks include both trial types). Task-switch lite and odd-even switch lite illustrate the idea with original mappings. Trail-making B lite is a spatial cousin: number then letter. None of these estimates a millisecond IQ. Device lag on the web is often larger than the effect you came to measure. Übung, kein klinischer IQ.
What is a task-switching cost? →What is a stop-signal task?
A go stimulus maps to a response. On some trials a stop signal appears and you should withhold. Researchers often vary the delay (SSD) to estimate stop-signal reaction time (SSRT). That estimate needs many trials and a model. Stop-signal lite on this site uses a simple stop cue. It does not track SSD, does not report SSRT, and is not an inhibition IQ. Go/no-go and anti-saccade lite are related family members with different mappings. Übung, kein klinischer IQ.
What is a stop-signal task? →What is a go/no-go task?
A go/no-go task presents targets you should answer and non-targets you should ignore. Continuous-performance lite on this site is a related “tap only for X” cousin. These originals are not a Conners CPT, not a TOVA, and not an ADHD IQ. Commission errors (tapping when you should not) are interesting in labs with hundreds of trials. A short web run is a feeling, not a report. Übung, kein klinischer IQ.
What is a go/no-go task? →