Sentences with phrase «weak overall correlation»
Others questioned whether the tremendous effort to observe teachers in classrooms, given its weak overall correlation to achievement, was worth it (Greene, 2013).
http://www.ascd.org/ Not exact matches
In other words, a strong correlation noted in just one group of teachers (i.e., teachers scoring the lowest on their value - added and observational indicators in this case) can be relatively stronger than the «weak» correlation observed on average or overall.
The benefit of having specific sector funds in the portfolio is these sector funds don't always correlate with the broad market and the weak correlation usually provides diversity, which in the long run could improve the portfolio's overall return.
The only other association that reached statistical significance was between categories of maternal 1 - h glucose and a BMI Z score at 2 years ≥ 85th percentile (χ2 for trend = 5.32, df = 1, P = 0.017), but the overall correlation between maternal glucose during pregnancy and BMI Z score at age 2 years was weak (fasting glucose r = 0.05, P = 0.08; 1 - h glucose r = 0.04, P = 0.22; 2 - h glucose r = 0.03, P = 0.36; and area under the curve r = 0.04, P = 0.18).