1. The researchers report that the structured diagnostic interview using DISH (the 'gold standard' for the study) has an inter-rater reliability of 93%. What does this mean about the instrument?
2. The nurse researchers report that the Beck Depression Inventory (BDI) has items rates on a scale of 0 to 3 with zero being no signs or symptoms and 3 being the most severe. Is this a quantitative or qualitative measure?
3. The nurse researchers report that the Beck Depression Inventory (BDI) has items rates on a scale of 0 to 3 with zero being no signs or symptoms and 3 being the most severe. Is each item categorical or continuous?
4. The nurse researchers report that the Beck Depression Inventory (BDI) has items rates on a scale of 0 to 3 with zero being no signs or symptoms and 3 being the most severe. Is the total score a continuous or categorical measure?
5. What level of measurement are the individual items in the BDI?
6. What would be the most appropriate measure of central tendency for the individual items in the BDI? (multiple answers)
7. What level of measurement is the total score on the BDI?
8. What options do researchers have for calculating a measure of central tendency for the BDI total score?
9. The nurse researchers report that concurrent validity (which is another name for convergent validity) is established for the BDI. What does this tell you?
10. The researchers go on to say that the Cronbach alpha coefficient is 0.92 in this study. What does this mean?