Table 2.
Top 30 Items for predicting high substance use risk at age 10–12.
| Questions | Feature Importance | Importance rank | chi2 | p-value |
|---|---|---|---|---|
| Do you often swear or use bad language? | 0.0069 | 1 | 42.3804 | 0.0000 |
| Do you have difficulty playing quietly? | 0.0055 | 2 | 39.0885 | 0.0000 |
| My child eats about the same amount at breakfast from day to day (Parents) | 0.0047 | 3 | 10.9055 | 0.0010 |
| Are you touchy or easily annoyed by others? | 0.0043 | 4 | 26.8952 | 0.0000 |
| About how many times a week does your child do things with any friends outside of regular school hours? (Parents) | 0.0042 | 5 | 4.7421 | 0.0294 |
| Do you have difficulty staying in line in the supermarket or waiting for your turn while you were playing with other children? | 0.0042 | 6 | 38.1248 | 0.0000 |
| Do you deliberately refuse adults, or do you refuse to do your chores at home or disobey rules a lot? | 0.0041 | 7 | 34.7887 | 0.0000 |
| Do you often argue with adults? | 0.0038 | 8 | 30.2260 | 0.0000 |
| How many jobs, chores do your child has? (Parents) | 0.0036 | 9 | 3.6153 | 0.0573 |
| Is your child hard to be distracted? (Parents) | 0.0033 | 10 | 7.8940 | 0.0050 |
| Does your child get very restless If he/she has to stay in one place for a long time? (Parents) | 0.0032 | 11 | 11.0743 | 0.0009 |
| Does your child get hungry about the same time each day? (Parents) | 0.0031 | 12 | 5.4537 | 0.0195 |
| Do you get very fidgety after a few minutes if you’re supposed to sit still? | 0.0029 | 13 | 14.0798 | 0.0002 |
| Does your child get very fidgety after a few minutes Een when he/she is supposed to be still? (Parents) | 0.0028 | 14 | 9.3343 | 0.0022 |
| How many organizations, clubs, teams or groups does your child belongs to? (Parents) | 0.0028 | 15 | 9.0944 | 0.0026 |
| Within the past 6 months, does your child, hangs around with other who get in troubles? (Parents) | 0.0027 | 16 | 19.4536 | 0.0000 |
| Compared to others of his/her age, how well does your child play and work alone? (Parents) | 0.0027 | 17 | 3.2823 | 0.0700 |
| No matter when your child goes to sleep, does he/she wake up at the same time the next morning? (Parents) | 0.0027 | 18 | 8.0267 | 0.0046 |
| Does your child have difficulty following through on instructions from others (not due to oppositional behavior or failure of comprehension), e.g., fails to finish chores? (Parents) | 0.0027 | 19 | 42.7693 | 0.0000 |
| Does failure at a task or in school make your work harder? | 0.0026 | 20 | 3.7005 | 0.0544 |
| Can you read a book for half an hour before you get restless? | 0.0026 | 21 | 6.6266 | 0.0100 |
| Do you get into trouble because you would do things without thinking about them first, for example running into the street without looking? | 0.0025 | 22 | 29.7495 | 0.0000 |
| Do you get very restless when you have to stay in one place for a long time? | 0.0025 | 23 | 8.9215 | 0.0028 |
| Does your child wake up the same time each day when he/she is away from home? (Parents) | 0.0024 | 24 | 8.0571 | 0.0045 |
| Do your heart beats fast for a long time when you get stirred up? | 0.0023 | 25 | 4.4068 | 0.0358 |
| Do you have so much energy that you just can’t stop moving? | 0.0023 | 26 | 8.2014 | 0.0042 |
| Do you get so excited that I remain very excited for a long time after watching an action show? | 0.0023 | 27 | 6.5546 | 0.0105 |
| Are you easily distracted? | 0.0023 | 28 | 6.9223 | 0.0085 |
| Compared to others of the same age, about how much time does your child spend in hobbies, activities and games other than sports? (Parents) | 0.0023 | 29 | 0.6293 | 0.4276 |
| Do you develop a plan for all your important goals? | 0.0022 | 30 | 3.3211 | 0.0684 |