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Reliability

Class 9 Science के इस tag से जुड़े questions। हर question के साथ chapter, topic, level और difficulty दी गई है।

ScienceIf an experimental result changes greatly on repetition what should be reviewed first?Class 9Exploration: Entering the World of Secondary ScienceHypothesis and experimentationHardScienceTwo groups have the same mean result but one group has widely spread measurements. What does this indicate?Class 9Exploration: Entering the World of Secondary ScienceHypothesis and experimentationHardScienceA student measures plant height at different times each day. What problem may this cause?Class 9Exploration: Entering the World of Secondary ScienceHypothesis and experimentationHardScienceIf repeated measurements are close to one another but far from the true value how should the results be described?Class 9Exploration: Entering the World of Secondary ScienceHypothesis and experimentationHardScienceA student obtains reaction times of twelve seconds twelve seconds and thirty seconds in three trials. What is the most appropriate next step?Class 9Exploration: Entering the World of Secondary ScienceHypothesis and experimentationHardScienceA student deleted results that did not match the conclusion. How will this affect the experiment?Class 9Exploration: Entering the World of Secondary ScienceHypothesis and experimentationHardScienceAn experiment used very few samples and the results differed from one another. What should be said about the conclusion?Class 9Exploration: Entering the World of Secondary ScienceHypothesis and experimentationHardScienceA student measured reaction time manually. What is the best way to improve the reliability of the results?Class 9Exploration: Entering the World of Secondary ScienceHypothesis and experimentationHardScienceIf an experiment gives similar results at another school using the same method which quality is strengthened?Class 9Exploration: Entering the World of Secondary ScienceHypothesis and experimentationHardScienceIn which situation is it most appropriate to revise a hypothesis?Class 9Exploration: Entering the World of Secondary ScienceHypothesis and experimentationHardScienceIn an experiment reaction time decreased as temperature increased. Which type of data would be most useful to support the hypothesis?Class 9Exploration: Entering the World of Secondary ScienceHypothesis and experimentationHardScienceWhich experimental change could improve accuracy without necessarily improving reliability?Class 9Exploration: Entering the World of Secondary ScienceHypothesis and experimentationHardScienceA student performs three identical trials before calculating a mean. What is the main benefit?Class 9Exploration: Entering the World of Secondary ScienceHypothesis and experimentationHardScienceSeveral students perform the same experiment using the same method and obtain similar results. Which quality is strengthened?Class 9Exploration: Entering the World of Secondary ScienceHypothesis and experimentationHardScienceIf repeated measurements in an experiment vary greatly what is the most likely problem?Class 9Exploration: Entering the World of Secondary ScienceHypothesis and experimentationHardScienceA student applies a new fertilizer to five plants and leaves only one untreated. What is the best way to improve reliability?Class 9Exploration: Entering the World of Secondary ScienceHypothesis and experimentationHardScienceA hypothesis was supported in an experiment but the sample size was very small. What is the most appropriate next step?Class 9Exploration: Entering the World of Secondary ScienceHypothesis and experimentationMediumScienceWhat does obtaining similar results repeatedly in an experiment indicate?Class 9Exploration: Entering the World of Secondary ScienceHypothesis and experimentationMediumScienceIn which experiment would increasing the sample size be most useful?Class 9Exploration: Entering the World of Secondary ScienceHypothesis and experimentationMediumScienceIn which situation will the reliability of an experiment increase most?Class 9Exploration: Entering the World of Secondary ScienceHypothesis and experimentationMedium

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