A medical doctor believes that the presence of aromatherapy candles will reduce the anxiety of first-time mothers-to-be during labour and will increase their reported satisfaction with their care at his hospital.He randomly assigns mothers to give birth in a room either with or without aromatherapy candles.What is the independent variable in this example?
A)anxiety level during labour
B)number of previous birthing experiences
C)room environment
D)satisfaction with hospital care

Question

Quizplus · Accepted Answer

The independent variable is the variable that is being manipulated and tested. In this example, the medical doctor is manipulating the presence or absence of aromatherapy candles in the room where the mother gives birth. Therefore, the independent variable is the room environment, represented by the options of having or not having aromatherapy candles.

A Medical Doctor Believes That the Presence of Aromatherapy Candles