Table of Contents | Search Technical Documentation | References
The following table presents the number of schools selected for the fourth- and eighth-grade private school mathematics and reading samples by sampling frame (Private School Universe Survey [PSS]-based and new-school) and private school affiliation.
| Grade and private school type | Total school sample | PSS-based school sample | New-school sample |
|---|---|---|---|
# Rounds to zero. | |||
| Grade 4 | |||
| All private | 390 | 390 | # |
| Catholic | 120 | 120 | # |
| Non-Catholic | 250 | 250 | † |
| Unknown affiliation | 30 | 30 | † |
| Grade 8 | |||
| All private | 380 | 380 | # |
| Catholic | 110 | 110 | # |
| Non-Catholic | 250 | 250 | † |
| Unknown affiliation | 30 | 30 | † |