Table 1 Adapted Fresno test mean scores (M) and standard deviation (SD) for individual items, corrected item-total correlation and internal consistency (Cronbach’s alpha) if the item is deleted
Item | M | S.D. | Corrected item-total correlation | Cronbach’s alpha if item is deleted |
|---|---|---|---|---|
Q1 – Formulate a clinical question | 12.59 | 7.16 | .53 | .79 |
Q2 – Information Sources | 10.60 | 5.98 | .42 | .80 |
Q3 – Study design | 10.99 | 7.77 | .62 | .78 |
Q4 – Search (search strategy) | 11.40 | 6.40 | .62 | .78 |
Q5 – Relevance | 7.84 | 5.55 | .62 | .79 |
Q6 – Internal Validity | 10.01 | 7.78 | .52 | .80 |
Q7 – Magnitude and significance | 8.06 | 7.03 | .63 | .78 |
Q8 – Questioning the patient / family | 6.17 | 4.59 | .43 | .80 |
Q9 – Sensitivity, positive predictive value and positive likelihood | 1.84 | 3.60 | .10 | .82 |
Q10 – Absolute risk reduction, relative risk, NNT, and p-value | 1.73 | 3.90 | .23 | .81 |
Q11 – Confidence Interval | .57 | 1.40 | .41 | .81 |
Q12 – Best study design (diagnosis) | 1.74 | 1.99 | .46 | .81 |
Q13 – Best study design (prognosis) | 1.94 | 2.00 | .54 | .81 |