Last reviewed: 24 October 2026
Grade 9 learners in Kenya are placed in senior school (Grade 10) using a combined score rather than a single exam. Many parents only hear about KJSEA and are surprised to learn that earlier assessments count too. This guide explains, step by step, how the placement score is put together, with a worked example, so you can see where marks still matter.
On this page
The three parts of the placement score
According to the Ministry of Education’s senior school placement guidelines, the score used for Grade 10 placement is made up of:
- KJSEA (Grade 9) – 60%. The Kenya Junior School Education Assessment written at the end of Grade 9.
- School-based assessment in Grades 7 and 8 – 20%. Assessments done in school and submitted to KNEC.
- KPSEA (Grade 6) – 20%. The Kenya Primary School Education Assessment written at the end of Grade 6.
This means about two-fifths of the placement score is already fixed before a learner sits KJSEA. It also means the Grade 9 year still carries the largest single share.
A worked example
Imagine a learner whose results, expressed as percentages, are: KJSEA 70%, Grades 7–8 school-based assessment 65%, and KPSEA 80%. The weighted score is:
(70 × 0.6) + (65 × 0.2) + (80 × 0.2) = 42 + 13 + 16 = 71%.
Now suppose the same learner improves KJSEA by ten points to 80%. The new score is 48 + 13 + 16 = 77%. A ten-point gain in KJSEA lifts the overall score by six points, while a ten-point change in either of the other two parts moves it by only two. That is why the final year of revision is worth the effort even if earlier results were weak.
This example is a simplified illustration. KNEC works with subject-level results and the eight-level scale, and placement also considers the pathway and school choices. Treat the arithmetic as a guide to where marks matter, not as an official calculator.
How the pathway affects placement
Learners choose one of three pathways for senior school: STEM, Social Sciences, or Arts and Sports Science. Within a pathway they pick subject combinations, and the subjects most relevant to that pathway carry weight in deciding whether the learner can be placed in it. A learner aiming for STEM, for example, should give Mathematics and Integrated Science extra attention in Grade 9. Read about the options on our pathways guide.
School choices
Learners select twelve schools across the four clusters, C1 (national) to C4, in line with Ministry guidance. A balanced list includes realistic options in every cluster as well as ambitious ones. Use the Senior School Finder to compare schools in your county.
What learners can still influence in Grade 9
- KJSEA performance: the 60% share. Regular practice with Grade 9 revision papers and short diagnostic quizzes like the Grade 9 CBC Challenge help most.
- Pathway readiness: lifting the key subjects for the chosen pathway.
- School selection: a well-balanced list of twelve schools.
Checking the numbers yourself
Our KJSEA grade calculator converts subject scores to levels and points, and the school-based assessment guide explains the Grades 7–8 component. CBC Guides is an independent revision site, not KNEC or the Ministry of Education; confirm the latest placement rules with your child’s school.