Table 1. The nail-biting questionnaire .

Question 1	Question 2	Question 3	Question 4	Question 5	Question 6	Question 7
On an average day how often did you feel the urge to bite your nails?	On an average day how intense or strong were the urges to bite your nails?	On an average day how much control do you have over the urges to bite your nails?	On an average day how often did you actually bite your nails?	On an average day how often did you make an attempt to stop yourself from biting your nails?	On an average day how often were you successful at actually stopping yourself from biting your nails?	During the past week how uncomfortable did your nail biting make you feel?
0-No urge	0-No urge	0-Always in control	0-Never	0-No urges	0-Did not bite	0-Did not feel uncomfortable
1-Occassional urge	1-Mild	1-Most of the time	1-Occassionally	1-Almost all of the time	1-Almost all of the time	1-Vaguely uncomfortable
2-Often	2-Moderate	2-Some of the time	2-Often	2-Some of the time	2-Most of the time	2-Noticeably uncomfortable
3-Very often	3-Severe	3-Rarely	3-Very often	3-Rarely	3-Some of the time	3-Significantly uncomfortable
4-Near constant urges	4-Extreme	4-Never in control	4-Always	4-Never tried to resist the urges	4-Rarely able to resist	4-Intensely uncomfortable