Table 1.

Demographic characteristics of Motivational interviewing and Common instruction groups

variable		Motivational interviewing (n = 30)	Common instruction (n = 31)
Academic degree	Uneducated Primary and secondary school High school Diploma Associate degree Bachelor’s degree Master’s degree PhD	6.7% 10.0% 10.0% 43.3% 3.3‌% 20.0% 6.7% 0.0‌%	9.7% 12.9% 16.1% 25.8% 9.7% 19.4% 3.2% 3.2%
Educational level	Pre-high school Diploma Higher education	26.7% 43.3% 30.0%	38.7% 25.8% 35.5%
Economic status	Poor Average Good Excellent	33.3% 50.0% 16.7% 0.0‌%	35.5% 54.8% 9.7% 0.0‌%