However, for several reasons, validity estimates for the K10, K6 and GHQ-12 observed in community samples, primary care and other populations may very well not be applicable in persons claiming disability after long-term sickness absence.
For both the K10 and the K6, we found validity estimates for 12-month classifications only to differ marginally from those for 30-day classifications, showing our assumption is likely to be right (K10: optimal cut-off point 23; SE: 0.649; SP: 0.842; AUC:0.798; K6: optimal cut-off point 13; SE: 0.746; SP: 0.771; AUC 0.787).
The present study was designed to obtain validity estimates for a role-play test.
Methodological concerns involved insufficient description of video podcasts examined, limited sample selection and description, and the absence of reliability and validity estimates for data collection tools.
In addition, we investigated whether validity estimates for the self-reported measures differ across ethnic groups.
Present validity estimates for GPAQ were slightly higher than estimates based on similar methods with the widely used International Physical Activity Questionnaire (IPAQ) [ 29].
Generally, validity estimates for these indicators were very high, as shown in table 3. Nyalenda had better agreement in all variables as compared to Butere.
Thus, for our sample consisting of sixth grade students (children making the transition to adolescence) the similar validity estimates for child and parent reports that we observed may be in line with this notion.
For the third objective, validity estimates based on the relation between LSI and device-based PA measures were reported as correlation coefficients and corresponding 95%% confidence interval [95 % CI].
Based on Mendoza, Stafford, and Stauffer [ 39]'s simulation study, a sample of at least 100 is recommended for obtaining precise reliability and validity estimates.
