Category: PSLE Primary Science
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PSLE Science Reality Lab Vol No.049 | “The Test Found Nothing” — Did a Positive Control Show It Could Find Something?
PSLE-SCI-REALITY-0049. A student-facing Reality Lab guide to negative scientific results: use an appropriate positive control or known reference to check whether the test could detect the expected signal before treating “nothing detected” as evidence of absence.
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PSLE Science Reality Lab Vol No.048 | “The Trend Jumps Here” — Did the Measuring Method Change?
PSLE-SCI-REALITY-0048. A student-facing Reality Lab guide to long scientific records: test whether a sudden jump reflects reality or a change of instrument, calibration, sampling or data processing.
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PSLE Science Reality Lab Vol No.047 | “Three Studies Agree” — Did They All Use the Same Dataset?
PSLE-SCI-REALITY-0047. A student-facing Reality Lab guide to checking whether several agreeing studies provide independent evidence or are repeated analyses of the same underlying dataset.
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PSLE Science Reality Lab Vol No.046 | “Both Groups Improved” — Did the New Product Cause the Improvement?
PSLE-SCI-REALITY-0046. A student-facing Reality Lab guide to evaluating before-and-after claims when both the tested group and a comparison group improve: compare changes, check starting conditions and ask what extra improvement the tested factor actually explains.
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PSLE Science Reality Lab Vol No.045 | “95% Accurate” — Accurate on Which Data?
PSLE-SCI-REALITY-0045. A massive Primary 5/6 Reality Lab guide to accuracy claims: ask which cases built the model, which cases truly tested it, whether test cases resemble real use, and what the headline percentage hides.
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PSLE Science Reality Lab Vol No.044 | “The Model Fits the Data” — Does That Prove the Explanation?
PSLE-SCI-REALITY-0044. A massive Primary 5/6 Reality Lab guide to model-fit claims: separate observations from fitted lines, inspect the errors left behind, compare alternative explanations, and test whether the model predicts new evidence.
