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A control is needed in a valid experiment because without controls then more then one variable is being tested. This can mess up the results.
What else can I help you with?
What are the components needed in order for an experiment to be valid?
For an experiment to be valid, it needs a control group to compare results, random assignment of participants to groups to minimize bias, manipulation of an independent variable to observe its effect, and reliable measures to accurately record outcomes.
Why is a control needed in a valid experiment?
To comare and contrast the differences and similarites.Im not really sure if this is right becuz i had the same question so ill see th votes in a few.Well wish me and u good luck cuz for me its due on monday
What does a valid experiment must include?
a control group and statistical analysys of the resultsalso, to be considered valid, the results of a scientific experiment must be repeatable and still proven correct.
Why is a control needed in a scientific experiment?
To be able to compare the results to something.
Explain why a control is needed in a valid experiment?
Because the scientific method means thinking of a hypothesis and proving a cause and effect in nature. If there is no control, then you can not prove the hypothesis of the cause and effect because you can not prove that your experiment caused the effect. If you have a theory that pepsi causes grass to grow, and with no control you manage to show that your lawn grew grass, how could you ever say that it was the pepsi that caused the growth unless your next door neighboors's yard died during the same time?
What are the compounds needed in order for an experiment to be valid?
The necessary compounds depend on the specific experiment being conducted. However, common compounds include reagents for reactions, solvents for dissolving substances, standards for calibration, and control substances for comparison. It is essential to carefully select and prepare these compounds to ensure accurate and reproducible results in the experiment.
What makes a valid experiment?
A valid experiment is characterized by a clear hypothesis, a control group for comparison, random assignment of participants, and the ability to replicate the results. It should also have ethical considerations and controls in place to minimize bias and confounding variables.
Why did mendels experiment use pure lines?
He needed a control group. *Apex*
What is the purpose of using multiple control in an experiment?
To help you conclude that no uncontrolled factors significantly influenced your results. To help you determine that your experimental results are valid To help control for factors that aren't being tested but might affect results
Which will make his experiment more valid?
To make an experiment more valid, ensure that the sample size is representative of the population, use random assignment to assign participants to groups, and control for any confounding variables that could impact the results.
What must an experiment have in order to be valid?
to represent the population.at random. -apex (;
Why are control not needed in the arthropods experiment described in the study guide?
The treatments can be compared to each other instead of to a control
