Recently, a new system for student placement into schools was initiated. This new system focuses solely on raw exam scores, throwing away an older system that relied heavily on students' grades. Complaints arose when students gained high marks but low raw scores and were thusly not accepted into schools. Now, grades don't matter! Before, grades alone would get a student accepted into a school.
The emphasis on testing/raw scores above grades became a deciding factor for Ghana, and little discussion took place on behalf of the Ministry of Education and the Ghana Education Service to inform parents of their decision. Controvery emerged most recently when many kids were still not placed into schools due to low raw scores, and school is starting very very soon...!
To read more about this topic, please read the article "Ghana: Addressing Computer Placement Challenges" at http://allafrica.com/stories/200910051519.html.