- Mundane: looks like life.
- Control.
- They may reduce cheating.
- Touch targets and lag change the toy.
- Cite it as public explanation.
- Size-congruence lite and shape-span lite.
Mundane realism versus experimental realism?
Mundane: looks like life. Experimental: engages the intended process. A game can have one without the other. Pratique — pas un QI clinique.
Why use “unreal” lab tasks at all?
Control. Isolating a process often requires stripping the world. Then you must not pretend you measured the world. Pratique — pas un QI clinique.
Are proctored online IQs more ecological?
They may reduce cheating. They still are not the job. Professional tests have their own manuals; this site is not one. Pratique — pas un QI clinique.
Mobile versus desktop?
Touch targets and lag change the toy. That is a validity threat for speeded games, not a personality finding. Pratique — pas un QI clinique.
Can I cite this page in a grant?
Cite it as public explanation. Do not cite a lite score as participant IQ. Pratique — pas un QI clinique.
What to try?
Size-congruence lite and shape-span lite. Notice how unlike your actual Tuesday they are. That gap is the lesson. Pratique — pas un QI clinique.
❓ Questions fréquentes
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. Pratique — pas un QI clinique.
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. Pratique — pas un QI clinique.
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. Pratique — pas un QI clinique.
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. Pratique — pas un QI clinique.
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. Pratique — pas un QI clinique.
What is item response theory? →