An IERI – International Educational Research Institute Journal
Table 1 Distribution of sample size and number of items per timing section, and the list of contextual variables
From: Generating group-level scores under response accuracy-time conditional dependence
| Â | PISA | NAEP | ||||||
|---|---|---|---|---|---|---|---|---|
Mean | SD | Min. | Max. | Mean | SD | Min. | Max. | |
Number of students | 677 | 29 | 610 | 744 | 25305 | 300 | 24935 | 25861 |
Number of items | 31 | 3 | 25 | 35 | 18 | 3 | 14 | 21 |
Contextual variables (\({\mathbf {z}}\)) | HISCED | LEP | SCHTYPE | |||||
GENDER | IEP | SLUNCH1 | ||||||
IMMIG | CENSREG | SRAC10E | ||||||
NBOOKS | DSEX | PARED | ||||||