The semi-tandem stand is conduct first. If not successful, then the
side-by-side stand is conducted. If the semi-tandem stand is successful, then the subject is then requested to attempt the full-tandem stand and the side-by-side
stand is skipped. The semi-tandem stand places the heel of one foot to the side and adjacent the toes of the other foot. In the side-by-side, both feet are placed
adjacent to each other inner side to inner side from heel to heel and toe to toe.
The full-tandem stand consists of standing with one foot fully in front of the other foot in such a manner that the heel of the second foot is in front of the toes of the first foot.
| Tandem | Description | Logic |
| 0 | tried, but unable; not attempted; or refused | if q3pm = 77, 77.7, 88, 88.8, 9998, or 9999 then tandem = 0 |
| 1 | ability to hold side-by-side stand < 10 secs | if 1 <= q3pm < 10 then tandem = 1 |
| 2 | able to hold side-by-side for 10 secs, but unable or refused to do semi-tandem | if q3pm = 10 and q1pm = (missing,null) then tandem = 2 |
| 3 | can hold side-by-side stand for 10 secs, and be able to do semi-tandem, but for < 10 secs | If q3pm = 10 (and 1 <= q1pm < 10) then tandem = 3 |
| 4 | ability to hold semi-tandem for full 10 secs | if q1pm = 10 and (1 <= q2pm < 10 or q2pm = (missing,null) ) then tandem = 4 |
| 5 | ability to hold full tandem for 10 secs | if q2pm = 10 then tandem = 5 |
| Note that approximately 50% of the sample scores a Tandem of 5 so further differentiation among those subjects is not possible using
these tests. |