- A construct is a defined attribute you cannot photograph directly: anxiety, spatial span, processing speed.
- Convergent correlations with similar tests, discriminant gaps from unlike tests, factor structure, and experimental manipulations.
- No.
- It can illustrate a task class.
- Device lag, cheating, language, practice, and tiny trial counts.
- Backward letter span lite and pattern matrices lite sit on different task families.
What is a construct?
A construct is a defined attribute you cannot photograph directly: anxiety, spatial span, processing speed. Tests are fallible indicators of it. Práctica — no es un CI clínico.
How is construct validity shown?
Convergent correlations with similar tests, discriminant gaps from unlike tests, factor structure, and experimental manipulations. One viral quiz is none of that. Práctica — no es un CI clínico.
Is face validity enough?
No. Looking like an IQ item is marketing. Construct work is slower and public in manuals and papers. Práctica — no es un CI clínico.
Can a game have a little construct meaning?
It can illustrate a task class. Illustration is not a claim that your hit count is “g.” Práctica — no es un CI clínico.
What threatens construct validity here?
Device lag, cheating, language, practice, and tiny trial counts. Those are features of a browser toy. Práctica — no es un CI clínico.
What should I try?
Backward letter span lite and pattern matrices lite sit on different task families. Treat both as practice, not as a construct battery. Práctica — no es un CI clínico.
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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. Práctica — no es un CI clínico.
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. Práctica — no es un CI clínico.
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. Práctica — no es un CI clínico.
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. Práctica — no es un CI clínico.
What is item response theory? →What is a g-loading?
In a factor analysis of several tests, a general factor (g) can appear. A subtest’s loading says how much it shares that factor in that sample and battery. Matrices often load high; some speeded motor tasks load lower. A loading is not your worth. N-back lite is not a published g-loading table. This site does not output g. Práctica — no es un CI clínico.
What is a g-loading? →