Self-Care Scoring Algorithm

This scoring algorithm can be used to calculate responses to the all of the documents found on this site.
COMPUTING
STANDARDIZED SCORES
All of the instruments on this website are
scored in the same fashion. All use a standardized score computed separately
for each individual score. Do not compute a total score reflecting the
whole index or inventory. That is, do not add together Self-Care Maintenance,
Self-Care Monitoring (or Symptom Perception), and Self-Care Management scales.
To compute a standardized score, first compute
a raw scale score. Then transform the raw scale score to a standardize score that
ranges from 0 to 100.
Computing Raw Scale Scores |
After item recoding, including Missing data You can use imputed values or change This simple scoring method is |
Transformation of Scale Scores |
The next step involves transforming This transformation converts the |
Table. Formulas for Scoring and Transforming Scales
Scale |
Sum final item values |
Lowest and highest possible raw |
Possible raw score range |
Self-Care Maintenance |
1+2+3+4+5+6+7+8 |
8, 40 |
32 |
Self-Care Monitoring |
9+10+11+12+13+14* |
5, 30 |
25 |
Self-Care Management |
15+16+17+18+19+20 |
5, 30 |
25 |
Example: A Self-Care Maintenance raw score
of 21 would be transformed as follows:
[(21 – 8)]
_______ * 100 = 41
[ 32 ]
*Note that item 14 theoretically fits into Self-Care Monitoring.
However, in prior studies, item 14 has loaded in Self-Care Management. We
recommend that both options be tried in psychometric testing. The item should
be used in the scale where it fits the best. Another option is to use item 14
as a separate item reflecting the link between self-care monitoring and
management. If you choose to use this approach, we recommend treating responses
to this item as ordinal level data and analyzing the percentage of respondents
who select each response choice.