do blood-building drugs help brain development in babies born prematurely? researchers randomly assigned 53 babies, born more than a month premature and weighing less than 3 pounds, to one of three groups. babies either received injections of erythropoietin (epo) three times a week, darbepoetin once a week for several weeks, or no treatment. results? babies who got the medicines scored much better by age 4 on measures of intelligence, language, and memory than the babies who received no treatment. what is the purpose of randomly assigning the babies to the three treatments? random assignment eliminates any bias in the experiment. random assignment helps to avoid confounding and reduces variation in responses. random assignment helps to create three groups of infants that are roughly equivalent at the beginning of the study. random assignment helps us distinguish the effects of the treatments form chance difference between the groups. random assignment allows us to show how different treatments cause different effects.

Question

27-10-2022
Mathematics

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do blood-building drugs help brain development in babies born prematurely? researchers randomly assigned 53 babies, born more than a month premature and weighing less than 3 pounds, to one of three groups. babies either received injections of erythropoietin (epo) three times a week, darbepoetin once a week for several weeks, or no treatment. results? babies who got the medicines scored much better by age 4 on measures of intelligence, language, and memory than the babies who received no treatment. what is the purpose of randomly assigning the babies to the three treatments? random assignment eliminates any bias in the experiment. random assignment helps to avoid confounding and reduces variation in responses. random assignment helps to create three groups of infants that are roughly equivalent at the beginning of the study. random assignment helps us distinguish the effects of the treatments form chance difference between the groups. random assignment allows us to show how different treatments cause different effects.

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joaobezerra joaobezerra · Answer 1 · 2022-11-02T23:50:53+01:00

The correct option regarding the random assignment of babies in the treatment is given as follows:

Random assignment helps us distinguish the effects of the treatments form chance difference between the groups.

Randon Assignment

Random assignment is used for control in experimental researches, to strengthen the validity of an experiment, distinguish the effects of the treatments form chance difference between the groups.

In these experiments, the effect of an independent variable is studied in one or multiple dependent variables in the study, and then the random assignment increases the validity of these effects.

Thus the correct option is given as follows:

Random assignment helps us distinguish the effects of the treatments form chance difference between the groups.

More can be learned about random assignment at https://brainly.com/question/9363521

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