Sentences with phrase «overall validity of studies»

Not exact matches

[17] This is a big problem for internal validity because we are left with the result that parents who refused participation in the Abecedarian program were less willing or able to commit to a long - term early childhood intervention for their children than the overall population of families who were recruited into the study.

Accordingly, even though their data for this part of this study come from one district, their findings are similar to others evidenced in the «Widget Effect» report; hence, there are still likely educational measurement (and validity) issues on both ends (i.e., with using such observational rubrics as part of America's reformed teacher evaluation systems and using survey methods to put into check these systems, overall).

However, further study should extend this examination of concurrent validity by looking at its association with other indicators of wellbeing, such as overall stress (Frone 2000), family cohesion (Bond et al. 1998) and so on.