Following the post here, I am wondering if reporting the mean and standard deviation is appropriate when describing a composite score.
My composite score is the total of responses on several likert scale items and count variables.
I have made sure that all are on a five point scale, based on their level of importance, so as to preserve variability.
This is the weighting system I have used to assign the scores:
- 0 = of no importance
- 1 = of some importance
- 2 = of medium importance
- 3 = of high importance
- 4 = of absolute importance
I have then added all scores together to arrive at the composite score. As such, this is based on a formative measurement model framework.
I am aware of issues relating to the purity of scales and I am hoping my logic of using "level of importance" as the weighing criterion would provide the necessary meaning I need to interpret the composite score. For example, if I get a composite score of 3, I know it is of high importance.
(I apologise for my non-statistical language.)