Discuss the meaning of each of the following terms and give an appropriate marketing example when each might be used or evaluated as part of a marketing research study. Clearly discuss the meaning of each and give an appropriate example and when each would be used.
1. Interval scales
2. Semantic differential scale
3. Frame error
4. Random error
5. Predictive validity
6. Longitudinal design
7. Sample distribution
8. Concomitant variation
9. Perceptual mapping
10. Before/ After with Control Group Design