1 = Female
2 = Male

born in which country
1 = Germany
2 = Turkey
3 = Other

First language
1 = German
2 = Turkish
3 = Other

Father's highest graduation
0 = No graduation
1 = Hauptschule
2 = Abschluss 8. Klasse
3 = Mittlere Reife
4 = Fachhochschulreife/Fachabitur
5 = Abitur
6 = Anderer

Number of books at home
1 = <10
2 = 11-50
3 = 51-100
4 = 101-250
5 = 251-500
6 = >500

Math ability self-concept item 1
1 = totally disagree
2 = no label
3 = no label
4 = no label
5 = totally agree

Test Anxiety Inventory General 1
1 = almost never
2 = sometimes
3 = often
4 = almost always

RT Item 1 answer
1 = a)
2 = b)
3 = c)
4 = d)
5 = e)
6 = f)

RT Item 1 answer coded
0 = Wrong
1 = Right

LGVT Item 01 answer
1 = First Word
2 = Second Word
3 = Third Word
4 = Multiple Words

LGVT Item 01 answer coded
-1 = Wrong
2 = Right