Investigating Rating Scale Design via Rasch Measurement Model: Analysis on a Scale to Assess Islamic Values Application in Quality management Context
Table 1:
| Indicators | Descriptions of a well-functioning rating scale |
| Observed count | High and stable observed count as low values often indicate unnecessary or redundant categories |
| Observed average | Expected to increase in size as the variable (the category) increases |
| Structure calibration | Expected to increase in size as the variable (the category) increases |
| Expected difference between threshold is 1.4 <x < 5 | |
| Probability curves | Each category is expected to have distinct peak |
| *Source: Linacre (1999) | |