@ -124,7 +124,7 @@ def repair_student_rows(df):
def combine_variants(df):
drops = []
for col in df:
x = re.search(r's-[a-z]{4}-q[0-9]-1', col)
x = re.search(r's-[a-z]{4}-q[0-9][0-9]?-1', col)
if x is not None:
# get non variant version
nonvar = col[:-2]