INVALSI - OECD-PISA 2006


·vai al contenuto della pagina·· salta la prima barra di navigazione··salta alla barra di navigazione a fondo pagina·· Prima barra di navigazione·

I contenuti del sito

Field trial


Pisa 2006 Field Trial was carried out in April 2005.

Sample

In November 2004 a judgment sample was drawn, comprising 63 Secondary schools representing all Italian education tracks and geographic regions. Moreover, Bolzano province participated in the Field Trial with a separately adjudicated sample of 23 schools, whose language of instruction was either German or Ladin. The school selection was based on the rolls provided by the Italian Ministry of Education. The number of sampled schools was determined so that each item might be administered to at least 200 students and each booklet to at least 100 students.

  Number of schools Number of students planned for Field Trial sample Number of respondents
North Eastern Region 7 245 222
Bolzano Province 23 805 653
North Western Region 8 280 258
Central Region 8 280 253
Southern Region 9 315 268
South & Islands 8 280 232
Total 63 2205 1886

Sample distribution per geographic region

  Number of schools
Lyceés 15
Vocational Institutes 10
Technical Institutes 15
Total 40

Sample distribution per school type (National sample)

Within each school, a random sample of 35 students is drawn from 15-year-old students.

Preparing and conducting the assessment session

In January 2005, sampled schools were contacted by the PISA National Centre. Each school participating in PISA was asked to appoint a School Associate - meeting the Consortium requirements - who were to be held responsible for all assessment activities within the school. In February, PISA National Centre provided School Associates with five training session. Training sessions were held in Foggia, Padua, Palermo, Rome, and Turin. During the training sessions assessment procedures were thoroughly illustrated and School Associates were given the School Associate Manual. Similarly, training sessions were organized for the Associates of German/Ladin schools of the Bolzano Province.

Materials to be used in the Main Study were all field trialled between April 4th and April 30th 2005. Assessment materials comprised: 12 Test Booklets containing scientific literacy items (test item rotating within each booklet and booklets rotating within student groups), Student Questionnaires (also including ICT familiarity questions), a Parent Questionnaire, and a School Questionnaire.

Only four schools - within the national sample - had to schedule a follow-up session, as more than 15% of the students sampled from their schools (not counting student or parent refusals, or excluded or ineligible students) were absent from the assessment session.

Each assessment session was divided into two sections: section 1 was devoted to the Cognitive Test and section 2 to the Student Questionnaire. Students were given two hours to complete the Test Booklet (with a short break after the first hour) and then, after a 10 minutes break, they were given another 50 minutes to complete the Student Questionnaire. The whole Assessment session took little more than three hours.

  Nationwide Bolzano Province
Booklets(Respondents) 1233 653
Student questionnaire(Respondents) 1232 652
Completed Parent Questionnaires 1082 536

Quality Monitoring

On the day of the assessment, quality monitors appointed by the National Centre visited some randomly selected schools without announcing their visit, in order to verify that assessment procedures were duly followed.

Answer coding and data entry

Marking and coding procedures started when all materials were back from the schools. Subject experts were hired for coding student responses to both the tests and the questionnaires, as well as for coding the answers to the Parent Questionnaire. As to the coding of the questions concerning occupation in the Student and Parent Questionnaires, the International Standard Classification of Occupations (ISCO-88) was used as a reference. Data entry was contracted out to a reliable firm.

Field Trial data were sent out to the International Consortium at the end of July to undergo data analysis, as Pisa National Centre is only responsible for national-level data analysis.


fondo pagina

[ Guida Access Key OECD-PISA 2006 ] [ XHTML 1.0 ] [ CSS 2.0! ] [ Accessibilità e Privacy ] ··


Se leggete questo messaggio probabilmente non state usando un browser standard. Qualora decideste di usare un browser standard vi consigliamo di rivolgervi al sito del Web Standard Project dove verranno illustrati i browser standard gratuiti disponibili per ogni piattaforma.

Valid XHTML 1.0 Strict · Valid CSS! · Logo di conformità livello A


[ Pagina creata in 0.001 secondi. ]
[· Pagina scaricata in 0.005 secondi. ]