A data frame of student level observations for five years and two content areas for the following variables.
COUNTRYVariable indicating the COUNTRY associated with test record.
STATEState associated with the test record.
VALID_CASEVALID_CASE variable.
CONTENT_AREAVariable indicating content area associated with test record.
YEARVariable indicating the year associated with the test record.
DATEVariable indicating the year associated with the test record: Must be in YYYY-MM-DD format.
IDUnique student identifier associated with test record.
GRADEVariable indicating the grade associated with the test record.
SCALE_SCOREVariable providing the scale score associated with the test record.
SCALE_SCORE_RASCHVariable providing the Rasch score associated with the test record.
SEMVariable indicating the standard error of measurement associated with the scale score.
ACHIEVEMENT_LEVELVariable indicating the achievement level associated with the scale score.
Anonymized student level interim assessment data in LONG format