In a study cited in the text, Lehrner et al. (2000) found that diffusing an orange aroma through a dentist's waiting room reduced patients' anxiety. Based on this description, the _____ variable in this study is _____.
A) control; whether an orange aroma was diffused
B) dependent; patients' anxiety
C) independent; patients' anxiety
D) experimental; whether an orange aroma was diffused
Correct Answer:
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