Investigators wanted to assess the accuracy of self-reported smoking status. Participants are asked whether they currently smoke or not. In addition, laboratory tests are performed on hair samples to determine presence or absence of nicotine. The laboratory assessment is considered the gold standard, or truth about nicotine consumption. The data are as follows:

	Nicotine Present	Nicotine Absent
Self-reported smoker	50	10
Self-reported nonsmoker	17	90

What is the specificity of self-reported smoking status?