The phrase "average school grades" is correct and usable in written English.
It can be used when discussing the typical performance of students in an educational setting, often in the context of assessments or evaluations.
Example: "The study revealed that students with average school grades tend to have better time management skills than those with lower grades."
Alternatives: "typical academic performance" or "mean school marks."
This latter imputation method concerns the variables deviant/assimilated behavior in one's own group of friends, social desirability, average school grades, and school anxiety.
Lien and co-workers found that in Oslo, Norway, more peer problems and psychological stress levels, and lower average school grades occurred among the youngest children in a school year, in a sample of 6,752 adolescents aged 15 16 years[ 3].
The average school grade during which young people first tried alcohol and cigarettes has increased.
This year's freshman class had average SAT scores of 1,050 and average high school grades of 82.
Their average high school grades, high school ranks and grades in Advanced Placement courses have not changed.
Final regulations are still being written, but college officials expect that the scholarship students will be required to have SAT scores of at least 1,200 and average high school grades of at least 90.
More than 7,000 applicants had average high school grades of A to A-, combined with scores of 700 or higher on each of the three sections of the SAT.
Specifically, we consider specifications that instead use average high school grades, math SAT score, verbal SAT score or combined SAT score as a measure of STEM and non-STEM peer quality.
The total number of medical school re-examinations and the time it took to complete medical school were significant individual predictors of subsequent difficulties (deceleration, transferral or dropout) in residency whereas average medical school grades were not.
Our results seem to support that line of thinking, because while there were no significant differences in the final average medical school grades or "competences" of cases and controls, there were differences in the "process" of reaching similar competency levels.
