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    Experiments & Variables

    Tryb DEMO — wynik zobaczysz poniżej, ale nic nie zapisujemy.


    Zadanie 1. Identify the dependent variable: We test whether more light increases plant height.




    Zadanie 2. Complete: A control group helps us ___ other explanations.
    rule out cause prove exclude

    Zadanie 3. Select all potential confounders in a sleep-productivity study.





    Zadanie 4. Choose the correct sentence.




    Zadanie 5. Complete: Randomisation helps ___ bias.
    reduce increase cause ignore

    Zadanie 6. Choose the best operational definition for "productivity".