- Alertness is necessary but not sufficient.
- Dropping old items for new ones, as in running span or n-back.
- Notifications steal the goal.
- No.
- Dual n-back lite loads two streams.
- Flanker lite (select) and visual 2-back lite (update).
Is attention just being awake?
Alertness is necessary but not sufficient. Control is the mapping from goal to response among distractors. अभ्यास — नैदानिक IQ नहीं।
What is updating?
Dropping old items for new ones, as in running span or n-back. Span length and updating are related, not identical. अभ्यास — नैदानिक IQ नहीं।
Why do phones wreck both?
Notifications steal the goal. That is a context effect, not a lifetime trait tattoo from one session. अभ्यास — नैदानिक IQ नहीं।
Can I diagnose ADHD here?
No. Diagnosis needs a qualified clinician, history, and often more than a game. Do not self-label from a 2-back. अभ्यास — नैदानिक IQ नहीं।
Dual tasks?
Dual n-back lite loads two streams. Dual-task cost is interesting and still not an IQ index. अभ्यास — नैदानिक IQ नहीं।
What to try?
Flanker lite (select) and visual 2-back lite (update). Read the disclaimer on each page. अभ्यास — नैदानिक IQ नहीं।
❓ लोग यह भी पूछते हैं
What is construct validity?
Construct validity is the argument that a score reflects a named idea — working memory, not “being clever in general.” It is built from theory, patterns of correlations, and failed rival explanations. A 20-trial number-Stroop lite can feel like control. Feeling is not a validity coefficient. This site never reports a licensed IQ. अभ्यास — नैदानिक IQ नहीं।
What is construct validity? →What is criterion validity?
Criterion validity asks whether a score lines up with something you care about that is not the test itself — a later grade, a supervisor rating, or a Wechsler index. Concurrent means measured at the same time; predictive means later. A visual 2-back lite has no published criterion table. It is not an employment screen and not an IQ. अभ्यास — नैदानिक IQ नहीं।
What is criterion validity? →What is content validity?
Content validity is whether the item set covers the skill or knowledge you claimed. A spelling test with only the letter Q is a coverage failure. Shape-span lite samples a tiny visuospatial sequence. It does not cover “all spatial intelligence.” Experts, blueprints and reviews build content arguments. A weekend hackathon does not. अभ्यास — नैदानिक IQ नहीं।
What is content validity? →What is a confidence interval?
A 95% confidence interval is a procedure: if you repeated the study under the same model, 95% of such intervals would cover the parameter. It is not the probability that this one interval magically contains the truth after you saw it. Licensed IQ manuals turn a standard error into a range around a scaled score. Digit-span lite does not. Treat any integer from this site as a toy count. अभ्यास — नैदानिक IQ नहीं।
What is a confidence interval? →What is item response theory?
Item response theory (IRT) models each item: harder items need more of the trait for a 50% chance of success; discriminating items separate nearby people. Computerized adaptive tests pick the next item from that model. Pattern-matrices lite is a fixed original set. It does not estimate a theta with published item parameters. It is not an IQ. अभ्यास — नैदानिक IQ नहीं।
What is item response theory? →