Psychology/Learn
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Learn
Get the concepts straight before you apply anything
A method applied to a badly framed question produces confident nonsense. This section covers the PMA sequence, the honest boundaries of what psychology can tell you, and how to read evidence without being fooled by it.
The PMA method
Learn → Observe → Understand → Apply. Four stages, the instruments for each, and the specific error each one prevents.
Read the method
What psychology can and cannot tell you
Six things the field genuinely knows, six things it is routinely claimed to know, and how to tell the two apart.
Read
Reading evidence without being fooled
Effect size, replication, sample, base rates and the four sentences that should make you stop reading.
Read
Why this order
The four stages are not a style preference. Each one exists to prevent a failure that occurs reliably when it is skipped or taken out of sequence.
| Stage | What it produces | What happens when it is skipped |
|---|---|---|
| Learn | A question that data can answer, and a definition somebody else could use. | Data are collected that nobody can use, against a definition that quietly changes. |
| Observe | A record with no conclusions in it. | Memory reconstruction, which drifts towards whatever you expected. |
| Understand | A finding with its limits named. | An opinion presented as a finding — and inherited as one by everybody downstream. |
| Apply | A change with an owner, a measure and a review date. | Five simultaneous changes, an improvement nobody can attribute, and nothing reproducible. |
The rule that holds it together
No stage may borrow the output of a later stage. You may not act before you have read, and you may not read before you have observed.
Educational scope. Everything published on PMA Science Psychology is provided for education, study and professional documentation. Nothing here is a diagnostic instrument, a psychometric test, or a substitute for assessment, treatment, supervision or emergency care by a qualified professional.
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