The phrase "achievement on average" is correct and usable in written English.
It can be used when discussing the typical level of success or performance across a group or over a period of time.
Example: "The study revealed that the achievement on average of students in the program was significantly higher than those in traditional classes."
Alternatives: "average performance" or "mean achievement".
And on this much there is wide agreement: their academic achievement, on average, did not improve.
Children whose mothers had lower levels of education and conflictual relationships with teachers exhibited lower reading achievement, on average, across elementary school.
"They may be low in achievement, on average, but they have a number of high-quality proposals out there that may start to change that in the next few years".
The classical regression model allows examination of important questions, such as: "does a certain variable influence educational achievements, on average?" or "are there differences in students' average performance conditional on a set of individual characteristics?".
Those with a higher educational achievement have, on average, shorter spells (15.4 months) than those with less schooling (32.1 months).
We must do more to address the systemic Achievement Gap between what first generation college students achieve on average, and what their peers accomplish.
With respect to our study, this effect implies that even though students in the high-achieving environment (the Gymnasium) knew their achievement was higher on average than that of students in the lower-achieving environments, their self-concept was, on average, not higher than that of their lower-tracked peers.
The study found that, regardless of family size or income, the difference in educational achievement is equivalent on average to the first child gaining an extra year of schooling compared with the third child.
Specifically, the countries that perform best on the subject achievement metric appear on average to have more negative feelings about the subject area.
Regarding the Guild Warrior achievement, Achievers collected on average 2.2 badges, Late Awakeners 2.3, Disheartened students 2.4 and Underachievers 2.6, although the differences were not significant.
I use the staggered activation of Secure Communities across counties between 2008 and 2013 to measure its impact on average achievement for Hispanic students, as well as non-Hispanic black and white students.
