The phrase "average effect is" is correct and usable in written English.
It can be used when discussing statistical outcomes or results in research, indicating the typical impact of a variable or treatment.
Example: "The average effect is significant, suggesting that the intervention had a positive impact on participants."
Alternatives: "mean effect is" or "typical effect is".
Or that the improved batting average effect is some combination of hitter learning and pitcher fatigue?
To some extent, the issue boils down to the fact that some women appear to be helped by Avastin, but others are not helped or are even hurt by the drug, so the average effect is small.
So while immigration appears to have had a negative impact on occupational pay, the overall average effect is relatively small.
Brunello et al. 2009, review some of these studies for Continental (Western) Europe and show that the estimated average effect is close to 0.3 years of schooling.
Apart from the most basic specifications which only look at means, the average effect is negative regardless of whether we add leads for the economic covariates, state and year fixed effects, or state time trends.
Further, Figure 3 shows that if we delete a random set of networks from the data-set, then the average effect is to not change the fit to the linear S∝n model: the linear scaling is robust, and does not depend on a specific network set.
Duckworth's team found that the average effect was 0.64 (which is equivalent to nearly 10 points on the IQ scale of 100), and remained higher than 0.5 even when three studies with unusually high g values were thrown out.
They all concluded that the average effect was a significant increase in ejection fraction.
Without this trial the average effect was 0.02 cm/month (95% confidence interval −0.01 to 0.05), a 50% decrease.
The spatial averaging effect is strongly dependent on the active aperture of the hydrophone probes used to measure ultrasound fields.
