Table 1.

Scoring Rubric for Mendes-Santos and Watson Methodsa

Mendes-Santos Methodb,22Original ScoringAdaptations to Directions and Scoring
(Item) Description
(a) Presence of a circle
(b) Presence of 12 numbers
(c) Numbers entered in the internal limit of the clock
(d) Number in the correct ascending order
(e) Numbers in correct spatial position
(f) A straight vertical line can be drawn between 12 and 6
(g) A straight horizontal line can be drawn between 3 and 9
(h) Numbers not concentrated in 1 part of the clock
(i) Presence of 2 points
(j) Presence of hour hand
(k) Presence of minute hand
(l) Minute hand proportionally larger than the hour hand
(m) One of the hands between 2 and 3
(n) One of the hands on exactly 9
(o) Wrong use of hands (digital or circling the numbers)
(p) Some evidence of having understood that it is a clock
(q) Did not try or did not represent a clock
(Score) Explanation
Mark all the items present in the drawn clock with an “X”.a
(10) Correct time (no mark for items o, p, q)
(9) Very mild disorder of hands (no mark for at least one item of l, m, n)
(8) Mild disorder of hands (no mark for at least 2 items of l, m, n)
(7) Severe disorder of hands (no mark for items l, m, n)
(6) Wrong use of hands (item o is marked)
(5) Numbers in reverse order or concentrated (no mark for items d or h)
(4) Numbers missing or located outside the boundary of the clock (no mark for items b and c)
(3) Absence of hands (no mark for items i, j, k)
(2) Only some evidence of having understood that it is a clock (item p is marked)
(1) Not tried or did not represent a clock (item q is marked)
If the item o is checked, the score is 6 points.
If the item p is checked, the score is 2 points.
If the item q is checked, the score is 1 point.
Patients were asked to signify the time as 10 minutes after 11.
Item m was adapted to say, “on exactly 2.”
Item n was adapted to say, “on exactly 11.”
Four numbers with intervening tick marks were accepted as presence of 12 numbers.
Watson Methodc,17Original ScoringAdaptations to Directions and Scoring
Instructions to patients
Divide circle into 4 quadrants drawing a line through the center of the circle and the number 12.
Draw the second line perpendicular to and bisecting the first line.
Count each digit with the number 12 being in the top right quadrant.
Count numbers in the clockwise direction.
If a number fell on 1 of the lines, it was counted in the quadrant clockwise from the line.
Scoring explanations
If a clock were drawn correctly, the numbers 12, 1, and 2 would be in the first quadrant, 3, 4, and 5 in the second quadrant, and so on.
Any error in the first 3 quadrants was a score of 1 and any error in the last quadrant (numbers 9, 10, and 11) was a score of 4.
If no errors were made, the final score was a 0.
Instructions in the mailing did not specify that patients must include “all” numbers.
Clocks with 4 numbers (12, 3, 6, 9) in the correct spatial position were scored as 0.
Four numbers (12, 3, 6, 9) with intervening tick marks were accepted as presence of twelve numbers and scored as 0.
If clocks had the numbers 12, 3, 6, and 9 along with the numbers 2 and 11 to signify the time, those clocks were scored as 0.
  • a Each method had a pre-drawn circle on the questionnaire.

  • b Score could range from 1-10 with 10 as the best possible score. Scores of 6-10 were considered normal and scores of 1-5 abnormal.

  • c Scores could range from 0-7 with 0 as the best possible score. Scores of 0-3 were considered normal and scores of 4-7 abnormal.