Ultimate Quiz On Scientific Control & Experiment

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Ultimate Quiz On Scientific Control & Experiment - Quiz

A controlled variable is one that is used as a standard of comparison for checking results of an experiment and kept constant throughout an experiment and is the basis for every decision after an experiment. Scientific control is an experiment that is designed to minimize the effects of variables other than independent variables. Take the test and learn more!


Questions and Answers
  • 1. 

    What is scientific control designed for?

    • A.

      Minimize the effect of variables

    • B.

      Make proper findings

    • C.

      Maximise the effect of variables

    • D.

      Find out about variables

    Correct Answer
    A. Minimize the effect of variables
    Explanation
    A scientific control is an experiment or observation designed to minimize the effects of variables other than the independent variable.

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  • 2. 

    What is increased in the  process of scientific control?

    • A.

      Reliability of results

    • B.

      Understanding of terms

    • C.

      Unreliability of results

    • D.

      Reliability of occurrences

    Correct Answer
    A. Reliability of results
    Explanation
    Scientifc Control increases the reliability of the results, often through a comparison between control measurements and the other measurements.

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  • 3. 

    Which of these if scientific control connected with?

    • A.

      Scientific method

    • B.

      Scientific problem

    • C.

      Scientific situations

    • D.

      Scientific findings

    Correct Answer
    A. Scientific method
    Explanation
    Scientific controls are a part of the scientific method.

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  • 4. 

    What does scientific control eliminates?

    • A.

      Alternate explanations of experimental results

    • B.

      Alternate problems of experimental results

    • C.

      Alternate explanations of measures of control

    • D.

      Alternate problems of measures of control

    Correct Answer
    A. Alternate explanations of experimental results
    Explanation
    Controls eliminate alternate explanations of experimental results, especially experimental errors and experimenter bias

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  • 5. 

    What is a major feature of many controls?

    • A.

      They are specific to the type of experiment being performed

    • B.

      They are not properly detailed unless more effort is placed

    • C.

      They are prone to mislead

    • D.

      They are based on findings

    Correct Answer
    A. They are specific to the type of experiment being performed
    Explanation
    Many controls are specific to the type of experiment being performed

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  • 6. 

    What kind of markers are used in SDS-PAGE experiments?

    • A.

      Molecular markers

    • B.

      Atomical markers

    • C.

      Scientific markers

    • D.

      Professional markers

    Correct Answer
    A. Molecular markers
    Explanation
    Molecular markers are used in SDS-PAGE experiments

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  • 7. 

    What is the consequence of using and selecting the proper control measures?

    • A.

      They are always valid

    • B.

      They result in more problem

    • C.

      They make work slower

    • D.

      It aids proper results

    Correct Answer
    A. They are always valid
    Explanation
    The selection and use of proper controls to ensure that experimental results are valid

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  • 8. 

    What is a major reason why people might not use the proper control measures?

    • A.

      It is very difficult

    • B.

      It wastes time

    • C.

      It gives doubted results

    • D.

      It is not always the best

    Correct Answer
    A. It is very difficult
    Explanation
    Using the proper control measures could be very difficult at times.

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  • 9. 

    Control measures are often important when confounding factors cannot easily?

    • A.

      Be separated

    • B.

      Be known

    • C.

      Be understood

    • D.

      Be noticed

    Correct Answer
    A. Be separated
    Explanation
    Controls are most often necessary where a confounding factor cannot easily be separated from the primary treatments.

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  • 10. 

    What other treatment is added to control for dilutant?

    • A.

      Dilutant alone

    • B.

      Dilutant isn't always needed

    • C.

      Dilutant control

    • D.

      Other scientific controls are available

    Correct Answer
    A. Dilutant alone
    Explanation
    To control for the effect of the dilutant, another treatment is added which is the dilutant alone.

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