Sentences with phrase «tests during the study period»

Federal officials blamed the gap on several factors, including the fact that some states switched to new tests during the study period, making it impossible to compare student test scores over time.

Not exact matches

One resident was excluded because she was absent for the preintervention test, and saw no breastfeeding infants in the clinics during the study period.

Residents were excluded from analysis if they neither took the preintervention knowledge test nor saw any breastfeeding infants in the outpatient clinics during the study period.

The study tested 135 children under the age of 24 months at four day - care centers in Texas during a nine - week period.

Studies designed to test the effectiveness of intervention in the extension of breastfeeding to six months have concluded that prenatal education on breastfeeding is not enough to extend the duration, and that intervention during both prenatal and postnatal periods might be more effective [16].

To test that idea, they have studied ancient ocean sediments laid down during the Ediacaran and Cambrian periods, which together ran from about 635 million to 485 million years ago.

Participants self - administered daily intranasal doses of theophylline for six weeks and had follow - up tests every two weeks during the study period.

Although limited by differences in the quality of the studies included in this review, these findings have important implications: they suggest that women living in regions where HIV infection is common should be offered repeat HIV testing during pregnancy and in the postpartum period to detect incident HIV infections, and that preventing HIV transmission during pregnancy and the postpartum period should be prioritized, for example, by counseling women about the need to use condoms to prevent transmission during this period of their lives.

The researchers were surprised to find that almost 1 percent of the websites they tested had suffered a data breach during their 18 - month study period, regardless of how big the companies» reach and audience are.

(In fact, when the CDC researchers reviewed death records for nearly 200 people who overdosed on opioids during the study period, they found that two - thirds tested positive for fentanyl.)

We exclude from the analysis schools, mostly in rural areas, with addresses we were unable to map and schools with missing test performance measures for any year during our study period, which spans 1996 — 97 to 1999 — 2000.

The move means that those taking legacy exams during the period of reform will not be forced to study for reformed qualifications should their original test results not go to plan.

Indeed, test scores did improve in Chicago during the period studied by the sociologists.

We used χ2 tests to compare differences in prevalence, incidence, persistence, new cases, and prevalence of having a chronic condition during any part of the 6 - year study period between consecutive cohorts.

The purposes of the study were: (1) to examine the impacts of four different types of exercise on preventing depressive symptoms in older adults using Taiwan as an example and (2) to test the effects of changes in exercise status during a specific period of time on depressive symptoms in the elderly.

This 2013 study by Fraley and Heffernan isolated and tested the sensitive period hypothesis which posited that, if true, the impact of parental divorce on adult attachment styles should be more pronounced if it occurred during early childhood than if it took place later in childhood.