2023 Hello i need a Good and Positive Comment related with this argument A paragraph
2023 Nursing p1
Hello i need a Good and Positive Comment related with this argument A paragraph 2023
Hello i need a Good and Positive Comment related with this argument .A paragraph with no more 90 words.
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Regina Siegfried
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Re:Topic 4 DQ 1
An experiment focuses on two variables which are dependent and independent. Extraneous variables are defined as conditions that are constantly changing which could be lighting, weather changes, moods, people getting tired or bored. In experiments there are always things changing and it is important to control these variables in research.
To control an extraneous variable the researcher needs to identify those variables that are most likely to influence the dependent variable (Bluman, 2010).
The extraneous variables can be held constant by creating a standardized environment and procedure so that all variables are the same in each condition and therefore cannot be confounding. By matching the values across treatment conditions you are ensuring that the variable does not vary across the treatment conditions, for example participants are assigned so that the average age is the same for all different treatment conditions.
The researcher needs to identify those variables that are most likely to influence the dependent variable.
This is done based on the researcher’s common sense, simple logical reasoning and past experience. Extraneous variables cannot be avoided but it is important to not let extraneous variables turn into confounding variable. Confounding variables need to be prevented because they can undermine the internal validity of an experiment and potentially cause a type 1 error. It is extremely important when conducting research to stop extraneous variables from turning into confounding variables (Triola, 2010).
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