How does a true experiment avoid spurious relationships between variables?
• A. using two comparison groups
OB.
controlling when treatment occurs
O C.using random assignment with two or more comparison groups
© D. documenting the conditions under which change occurs

Question

15-10-2021
Biology

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How does a true experiment avoid spurious relationships between variables?
• A. using two comparison groups
OB.
controlling when treatment occurs
O C.using random assignment with two or more comparison groups
© D. documenting the conditions under which change occurs

Respuesta :

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luisvaschetto luisvaschetto · Answer 1 · 2021-10-29T10:36:32+02:00

An experiment avoids spurious relationships between variables using RANDOM ASSIGNMENT with two or more comparison groups. Random assignment is a technique for assigning subjects to groups using randomization.

A comparison group is a group of individuals/subjects that do not receive the experimental treatment.

Comparison groups should be used when a random assignment cannot be made.

A control group is suitable only if a random assignment was made correctly.

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How does a true experiment avoid spurious relationships between variables? • A. using two comparison groups OB. controlling when treatment occurs O C.using random assignment with two or more comparison groups © D. documenting the conditions under which change occurs

Respuesta :

Otras preguntas

How does a true experiment avoid spurious relationships between variables?
• A. using two comparison groups
OB.
controlling when treatment occurs
O C.using random assignment with two or more comparison groups
© D. documenting the conditions under which change occurs