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Table 1 Two-form design for PISA 2006 simulation study based on Adams et al. (2013)

From: On imputation for planned missing data in context questionnaires using plausible values: a comparison of three designs

Questionnaire form 1 Questionnaire form 2
Common block
Scale name Scale description   
 PROGN Country study program   
 GRADE Grade   
 AGE Age of the student   
 GENDER Gender   
 BMMJ Occupation of mother   
 BFMJ Occupation of father   
 BSMJ Occupation of self at 30   
 MISCEDN Educational level of mother   
 FISCED Educational level of father   
 IMMIG Immigration status   
 LANG Language at home   
 DEFFORT Difference in effort   
 CULTPOSS Classic literature, books of poetry, works of art   
 HEDRES Study desk, quiet place to study, computer for school work, educational software, own calculator, books to help with school work, dictionary   
 WEALTH Own room, internet link, dishwasher, DVD/VCR, three country-specific wealth items, number of cellphones, TVs, computers, cars   
Block 1 Block 2
Scale name Scale description Scale name Scale description
 CARINFO Student information on science-related careers ENVOPT Environmental optimism
 CARPREP School preparation for science-related careers ENVPERC Perception of environmental issues
 ENVAWARE Awareness of environmental issues GENSCIE General value of science
 INSTSCIE Instrumental motivation in science INTSCIE General interest in learning science
 JOYSCIE Enjoyment of science PERSIE Personal value of science
 SCIEFUT Future-oriented science motivation RESPDEV Responsibility for sustainable development
 SCINTACT Science teaching: interaction SCAPPLY Science teaching: focus on applications or models
 SCINVEST Science teaching: student investigations SCHANDS Science teaching: hands-on activities
 SCSCIE Science self-concept SCIEACT Science activities
   SCIEEFF Science self-efficacy
  1. HIGHCONF, INTCONF, PRGUSE and INTUSE were excluded from the matrix sampling design because of no USA data in these four variables