Country ID - Numeric ISO Code
9999999999 = Omitted or invalid

Population ID
1 = Population 1
9 = Omitted or invalid

Standardized Grade ID
1 = Lower Grade
2 = Upper Grade
9 = Omitted or invalid

Grade ID
4 = Grade Four
9 = Omitted or Invalid

Student Wave Indicator
1 = Spring 2021
2 = Fall 2021
3 = Spring 2022
9 = Omitted or invalid

Student Exclusion Status
1 = Student with functional disabilities
2 = Student with intellectual disabilities
3 = Non-native language speaker
9 = Omitted or invalid

Sex of Students
1 = Girl
2 = Boy
9 = Omitted or invalid

Date of Student Birth\Month
99 = Omitted or invalid

Date of Student Birth\Year
9999 = Omitted or invalid

Student Participation Status Indicator
0 = Excluded and did not participate
1 = Left school permanently
2 = Absent
3 = Participated
4 = Parental permission denied
5 = Excluded and data available
6 = Removed from sample
7 = Instrument lost
9 = Omitted or invalid

Student Participation Achievement Session
0 = Excluded and did not receive a booklet
1 = Left school permanently
2 = Absent
3 = Participated
4 = Parental permission denied
9 = Omitted or invalid

Test Administrator Position
1 = National Center Staff
2 = Teacher from School
3 = Other
9 = Omitted or invalid

Special Accommodation\Achievement Session
0 = No Special Accommodation
1 = Special Accommodation
9 = Omitted or invalid

Administration mode of the Student Test
1 = Paper
2 = Digital
9 = Omitted or invalid

FIRST TEACHER ID
99999999 = Omitted or invalid

BOOKLET ID
0 = No booklet assigned as student is excluded

GEN\SEX OF STUDENT
1 = Girl
2 = Boy
3 = <Other>
9 = Omitted or invalid

GEN\DATE OF BIRTH\MONTH
1 = January
2 = February
3 = March
4 = April
5 = May
6 = June
7 = July
8 = August
9 = September
10 = October
11 = November
12 = December
99 = Omitted or invalid

GEN\DATE OF BIRTH\YEAR
1 = 2008
2 = 2009
3 = 2010
4 = 2011
5 = 2012
6 = 2013
7 = 2014
8 = Other
99 = Omitted or invalid

GEN\OFTEN SPEAK <LANG OF TEST> AT HOME
1 = I always speak <language of test> at home
2 = I almost always speak <language of test> at home
3 = I sometimes speak <language of test> and sometimes speak another language at home
4 = I never speak <language of test> at home
9 = Omitted or invalid

GEN\AMOUNT OF BOOKS IN YOUR HOME
1 = None or very few (0–10 books)
2 = Enough to fill one shelf (11–25 books)
3 = Enough to fill one bookcase (26–100 books)
4 = Enough to fill two bookcases (101–200 books)
5 = Enough to fill three or more bookcases (more than 200)
9 = Omitted or invalid

GEN\HOME POSSESS\SHARED COMPUTER OR TABLET
1 = Yes
2 = No
9 = Omitted or invalid

GEN\ABOUT HOW OFTEN ABSENT FROM SCHOOL
1 = Once a week
2 = Once every two weeks
3 = Once a month
4 = Once every two months
5 = Never or almost never
9 = Omitted or invalid

GEN\HOW OFTEN FEEL THIS WAY\TIRED
1 = Every day
2 = Almost every day
3 = Sometimes
4 = Never
9 = Omitted or invalid

GEN\USE COMPUTER TABLET SCHOOLWORK\FINDING AND READING
1 = No time
2 = 30 minutes or less
3 = More than 30 minutes
9 = Omitted or invalid

GEN\AGREE\USING A COMPUTER OR TABLET
1 = Agree a lot
2 = Agree a little
3 = Disagree a little
4 = Disagree a lot
9 = Omitted or invalid

GEN\HOW OFTEN\MADE FUN OF
1 = At least once a week
2 = Once or twice a month
3 = A few times a year
4 = Never
9 = Omitted or invalid

READ\HOW OFTEN\STUDENTS DON´T LISTEN
1 = Every or almost every lesson
2 = About half the lessons
3 = Some lessons
4 = Never
9 = Omitted or invalid

READ\HOW OFTEN\READ SILENT
1 = Every day or almost every day
2 = Once or twice a week
3 = Once or twice a month
4 = Never or almost never
9 = Omitted or invalid

READ\HOW OFTEN BORROW BOOKS SCHOOL LIBRA
1 = At least once a week
2 = Once or twice a month
3 = A few times a year
4 = Never or almost never
9 = Omitted or invalid

READ\TIME SPEND READING OUTSIDE SCHOOL
1 = Less than 30 minutes
2 = 30 minutes up to 1 hour
3 = From 1 hour up to 2 hours
4 = 2 hours or more
9 = Omitted or invalid

Reliability Coding Status
0 = False
1 = True
9 = Omitted or invalid

EXPLICIT STRATUM CODE
999 = Omitted or invalid

HOUSE WEIGHT
999999 = Omitted or invalid

JACKKNIFE REPLICATE CODE
9 = Omitted or invalid

INT. READING SCALE BENCHMARK REACHED
1 = BELOW 400
2 = AT OR ABOVE 400 BUT BELOW 475
3 = AT OR ABOVE 475 BUT BELOW 550
4 = AT OR ABOVE 550 BUT BELOW 625
5 = AT OR ABOVE 625
9 = Omitted or invalid

DIGITAL SELF-EFFICACY/IDX
1 = High Digital Self-Efficacy
2 = Medium Digital Self-Efficacy
3 = Low Digital Self-Efficacy
9 = Omitted or invalid

STUDENTS SENSE OF SCHOOL BELONGING/IDX
1 = High Sense of School Belonging
2 = Some Sense of School Belonging
3 = Little Sense of School Belonging
9 = Omitted or invalid

STUDENT BULLYING/IDX
1 = Almost Never
2 = About Monthly
3 = About Weekly
9 = Omitted or invalid

STUDENTS ENGAGED IN READING LESSONS/IDX
1 = Very Engaged
2 = Somewhat Engaged
3 = Less than Engaged
9 = Omitted or invalid

DISORDERLY BEHAVIOR DURING REA LESSONS/IDX
1 = Few or No Lessons
2 = Some Lessons
3 = Most Lessons
9 = Omitted or invalid

STUDENTS LIKE READING/IDX
1 = Very Much Like Reading
2 = Somewhat Like Reading
3 = Do Not Like Reading
9 = Omitted or invalid

HOME RESOURCES FOR LEARNING/IDX
1 = Many Resources
2 = Some Resources
3 = Few Resources
9 = Omitted or invalid

STUDENTS CONFIDENT IN READING/IDX
1 = Very Confident
2 = Somewhat Confident
3 = Not Confident
9 = Omitted or invalid

NUMBER OF HOME STUDY SUPPORTS
1 = Neither Own Room nor Internet Connection
2 = Either Own Room or Internet Connection
3 = Both Own Room and Internet Connection
9 = Omitted or invalid

Wer lebt mit dir zu Hause - Mutter
-99 = keine Angabe
-98 = nicht valide
-97 = nicht bearbeitbar
0 = nicht markiert
1 = markiert

Welche der folgenden Aussagen trifft auf dich zu
-99 = keine Angabe
-98 = nicht valide
-97 = nicht bearbeitbar
1 = Deutsch ist Muttersprache
2 = Deutsch ist nicht Muttersprache, aber Deutsch vor Schuleintritt gelernt
3 = Deutsch nicht Muttersprache und nach Schuleintritt gelernt

Was trifft auf deine Eltern zu - Mutter in Deutschland geboren
-99 = keine Angabe
-98 = nicht valide
-97 = nicht bearbeitbar
1 = Ja
2 = Nein
3 = Weiss ich nicht

Alter, als du nach Deutschland kamst
-99 = keine Angabe
-98 = nicht valide
-97 = nicht bearbeitbar
1 = 10 Jahre oder aelter
2 = 9 Jahre
3 = 8 Jahre
4 = 7 Jahre
5 = 6 Jahre
6 = 5 Jahre
7 = 4 Jahre
8 = 3 Jahre
9 = 2 Jahre
10 = 1 Jahr oder juenger
11 = Weiss ich nicht

An wie vielen Tage in der Woche ganztags Schulbesuch
-99 = keine Angabe
-98 = nicht valide
-97 = nicht bearbeitbar
1 = 5 Tage in der Woche
2 = 4 Tage in der Woche
3 = 3 Tage in der Woche
4 = 2 Tage in der Woche
5 = 1 Tag in der Woche
6 = Nie

Zustimmung Aussagen - DeutschlehrerIn macht Unterrichtsinhalt an Beispielen klar
-99 = keine Angabe
-98 = nicht valide
-97 = nicht bearbeitbar
1 = Stimme voellig zu
2 = Stimme eher zu
3 = Stimme eher nicht zu
4 = Stimme ueberhaupt nicht zu

Leseunterricht - schriftliche Zusammenfassung von Abschnitten eines Textes und Austausch mit Mitschuelerinnen
-99 = keine Angabe
-98 = nicht valide
-97 = nicht bearbeitbar
1 = In den meisten Stunden
2 = In einigen Stunden
3 = Nie oder fast Nie

Aussagen Leseunterricht - LehrerIn macht langweilige Texte interessant
-99 = keine Angabe
-98 = nicht valide
-97 = nicht bearbeitbar
1 = Stimme stark zu
2 = Stimme eher zu
3 = Stimme eher nicht zu
4 = Stimme ueberhaupt nicht zu

Dinge im Deutschunterricht - DeutschlehrerIn nimmt sich Zeit, um einzenen SchuelerInnen Dinge zu erklaeren
-99 = keine Angabe
-98 = nicht valide
-97 = nicht bearbeitbar
1 = Nie
2 = In wenigen Stunden
3 = In den meisten Stunden
4 = In jeder Stunde

Wie viel liest du im Internet an normalem Schultag - um dich ueber ein interessantes Thema zu informieren
-99 = keine Angabe
-98 = nicht valide
-97 = nicht bearbeitbar
1 = Mehr als 2 Stunden
2 = Mehr als 1 Stunde, bis zu 2 Stunden
3 = 30 Minuten bis zu einer Stunde
4 = Weniger als 30 Minuten
5 = Nie

Wie haeufig nutzt LehrerIn digitale Geraete im Leseunterricht - um einzelnen Kindern Dinge zu erklaeren
-99 = keine Angabe
-98 = nicht valide
-97 = nicht bearbeitbar
1 = Jede oder fast jede Stunde
2 = In etwa der Haelfte der Stunden
3 = In wenigen Stunden
4 = Nie

Wie oft hast du mit Eltern/Familienmitglied im vergangenen Jahr gemacht - Ins Theater gehen
-99 = keine Angabe
-98 = nicht valide
-97 = nicht bearbeitbar
1 = Mehr als viermal im Jahr
2 = Etwa drei- oder viermal im Jahr
3 = Ein- oder zweimal im Jahr
4 = Nie

Zufriedenheit mit - deiner Schule
-99 = keine Angabe
-98 = nicht valide
-97 = nicht bearbeitbar
1 = Sehr zufrieden
2 = Zufrieden
3 = Eher zufrieden
4 = Eher unzufrieden
5 = Unzufrieden
6 = Sehr unzufrieden

In den letzten vier Schulwochen - hatte ich Kopfschmerzen
-99 = keine Angabe
-98 = nicht valide
-97 = nicht bearbeitbar
1 = Immer
2 = Oft
3 = Manchmal
4 = Nie

Sperrspitze
-99 = keine Angabe
-98 = nicht valide
-97 = nicht bearbeitbar
-96 = not reached
1 = A
2 = B
3 = C
4 = D
5 = E

Flugzeuge fliegen
-99 = keine Angabe
-98 = nicht valide
-97 = nicht bearbeitbar
-96 = not reached
0 = Falsch
1 = Richtig

Geschaeft
-99 = keine Angabe
-98 = nicht valide
-97 = nicht bearbeitbar
-96 = not reached
1 = Gesellschaft
2 = Gebaeude
3 = Geschuetz
4 = Laden

streifen
-99 = keine Angabe
-98 = nicht valide
-97 = nicht bearbeitbar
-96 = not reached
1 = anfassen
2 = leicht beruehren
3 = anspielen
4 = stark beruehren

gemaechlich
-99 = keine Angabe
-98 = nicht valide
-97 = nicht bearbeitbar
-96 = not reached
1 = gemustert
2 = langsam
3 = schnell
4 = saettigend

urspruenglich
-99 = keine Angabe
-98 = nicht valide
-97 = nicht bearbeitbar
-96 = not reached
1 = jung
2 = verwandelt
3 = huepfend
4 = anfaenglich

gebrauchen
-99 = keine Angabe
-98 = nicht valide
-97 = nicht bearbeitbar
-96 = not reached
1 = bewerten
2 = besitzen
3 = benutzen
4 = behalten

kostspielig
-99 = keine Angabe
-98 = nicht valide
-97 = nicht bearbeitbar
-96 = not reached
1 = teuer
2 = traurig
3 = leicht
4 = trotzig

Gasse
-99 = keine Angabe
-98 = nicht valide
-97 = nicht bearbeitbar
-96 = not reached
1 = Kurve
2 = Strasse
3 = Waldweg
4 = Stau

optimistisch
-99 = keine Angabe
-98 = nicht valide
-97 = nicht bearbeitbar
-96 = not reached
1 = zutraulich
2 = zahm
3 = zuversichtlich
4 = zusammen

gelingen
-99 = keine Angabe
-98 = nicht valide
-97 = nicht bearbeitbar
-96 = not reached
1 = verlieren
2 = funktionieren
3 = gieren
4 = senden

Erheiterung
-99 = keine Angabe
-98 = nicht valide
-97 = nicht bearbeitbar
-96 = not reached
1 = Freude
2 = Trauer
3 = Klage
4 = Glueck

zusammen
-99 = keine Angabe
-98 = nicht valide
-97 = nicht bearbeitbar
-96 = not reached
1 = verbinden
2 = beide
3 = zwei
4 = gemeinsam

mahlen
-99 = keine Angabe
-98 = nicht valide
-97 = nicht bearbeitbar
-96 = not reached
1 = zerreiben
2 = zertifizieren
3 = fertigen
4 = zerreissen

prompt
-99 = keine Angabe
-98 = nicht valide
-97 = nicht bearbeitbar
-96 = not reached
1 = wichtig
2 = privat
3 = sofort
4 = langsam

Verlies
-99 = keine Angabe
-98 = nicht valide
-97 = nicht bearbeitbar
-96 = not reached
1 = Urlaub
2 = Gefaengnis
3 = Versteck
4 = Ausflug

geschehen
-99 = keine Angabe
-98 = nicht valide
-97 = nicht bearbeitbar
-96 = not reached
1 = sich vertrauen
2 = sich ereignen
3 = sich erinnern
4 = sich verlaufen

Anzahl
-99 = keine Angabe
-98 = nicht valide
-97 = nicht bearbeitbar
-96 = not reached
1 = Buch
2 = Rechnung
3 = Nummer
4 = Menge

umwenden
-99 = keine Angabe
-98 = nicht valide
-97 = nicht bearbeitbar
-96 = not reached
1 = umfallen
2 = umhauen
3 = umdrehen
4 = umgehen

Wandlung
-99 = keine Angabe
-98 = nicht valide
-97 = nicht bearbeitbar
-96 = not reached
1 = Wohnung
2 = Geschaeft
3 = Weise
4 = Veraenderung

Vieh
-99 = keine Angabe
-98 = nicht valide
-97 = nicht bearbeitbar
-96 = not reached
1 = Vasen
2 = Verkehr
3 = Tiere
4 = Traeume

-99 = keine Angabe
-98 = nicht valide
-97 = nicht bearbeitbar
-96 = not reached
1 = genau
2 = genug
3 = korrekt
4 = kompliziert