Author: eduKate Asia
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PSLE Science Reality Lab Vol No.538 | “Absorbance = 2.0” — Did the Sample Absorb Twice as Much Light as Absorbance = 1.0?
A massive Primary 5/6 evidence guide to absorbance and transmittance: why absorbance 2.0 is not simply twice the percent light absorbed as absorbance 1.0.
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PSLE Science Reality Lab Vol No.537 | “This Museum Dinosaur Is One Skeleton” — Did Every Display Bone Come From One Animal?
A massive Primary 5/6 evidence guide to museum dinosaur mounts: how to separate original fossil, cast, reconstruction and composite evidence before claiming one complete animal was found.
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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.
