Reply to following with 2 sources please

Reply to following with 2 sources please Another method of controlling the extraneous variables is randomization. Randomization does not completely exclude any extraneous variable, but it does help with equality within all groups. Randomization offers control of participant selection, treatment assignment, and anonymity of participants (Ivey, 2020). This situation eliminates some types of bias. Extraneous factors are always present and may contribute to the findings. After the completion of a randomized control trial, the researcher typically discovers new information or insider to study and understand the outcome more completely (Ivey, 2020). Extraneous variables are inevitable in research but they can be controlled if the study is evaluated properly. SCIENCE HEALTH SCIENCE NURSING NRS -433

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