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A properly designed experiment contains the following:
positive and negative controls and experimental conditions.
positive control and experimental conditions.
positive and negative controls
control and experimental
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- Why is it important to have a control for an experiment?What do you call a sample that goes through all the steps of an experiment but is not exposed to the experimental variable? control group dependent variable independent variable all variables/groups are exposed to the experimental variableWhat variable is the one that you can manipulate or change? It is sometimes called experimental variable
- what is the difference between a quasi-experimental design and an experimental designThe 'control group' is an essential component of an experiment. This is because 1. A control group allows one to determine if a particular result is due to the experimental variable. 2. No, it's not essential in experimentation. A control group is not always necessary it depends on the experiment. 3. A control group allows for multiple variables to be tested at the same time. 4. A control group is required for the development of a prediction.A well-designed experiment will contain both positive and negative controls. Which of the following is a false statement? Choose one from the following: (A) a positive control experiment is missing some of the components of the experiment and should give a negative result (B) a positive control experiment contains all of the components of an experiment and should give a positive result (C) a negative control experiment is missing the element being tested and should give a negative result (D) if there are multiple components of an experiment, there should be multiple negative controls (E) if a negative control experiment give positives results, it is likely that the experiment is contaminated
- Please explain What are biological concepts of this experiment, limitations and improvements…Experimental techniques & the effect of the change of variables on the resultsIn the experiment described above, state what each of these parts of the experiment was: Independent variable Dependent variable Control group Experimental group One controlled variableList the three types of variables that are taken into account when designing an experiment, and briefly define each in your own wrods.
- In the experiment described above, specifically state what each of these parts of the experiment was: Independent variable Dependent variable Control group Experimental group One controlled variablean independent variable is the variable measured in an experiment. True or FalseCompare and contrast random and systematic experimental errors with specific examples either real or fictitious. Explain how these types of errors can be identified and reduced in an experiment.