Author: eduKate Asia
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PSLE Science Reality Lab Vol No.536 | “Least Concern” — Does That Mean a Species Has No Conservation Problems?
A massive Primary 5/6 evidence guide to IUCN Least Concern: why a global extinction-risk category does not mean no local decline, no threats or no conservation need.
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PSLE Science Reality Lab Vol No.535 | “AUC = 0.90” — Is the Classifier 90% Accurate?
A massive Primary 5/6 evidence guide to ROC AUC: why AUC = 0.90 is not automatically 90% accuracy, and how thresholds, test data, errors and independent validation change the claim.
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Top 10 Value-of-Information Skills Worth Learning
Learn 10 durable value-of-information skills: identify decision-critical uncertainty, compare choices with and without new evidence, price information costs, prefer small informative tests, know when to stop searching and state what evidence would change your mind.
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Top 10 Decision Threshold Skills Worth Learning
Learn 10 durable decision-threshold skills: connect evidence to action, distinguish natural and policy boundaries, account for measurement noise, balance false positives and false negatives, find breakpoints, use buffers and document action rules before outcomes arrive.
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Top 10 Diagnostic Reasoning Skills Worth Learning
Learn 10 durable diagnostic reasoning skills: define symptom patterns, separate observation from interpretation, generate competing explanations, seek discriminating evidence, update diagnoses, identify red flags and verify hidden causes through intervention.
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Top 10 Counterexample Reasoning Skills Worth Learning
Learn 10 durable counterexample reasoning skills: expose claim scope, find valid boundary cases, distinguish real counterexamples from irrelevant exceptions, discover missing conditions, repair overbroad rules and retest revised claims.
