• William L. Johnson added an answer:
    How can I perform second order factor analysis in SPSS?

    For our course in psychological assessment we have to adapt a scale for Bulgaria. My colleagues and I chose the oxford happiness questionnaire and we have to perform this hierarchical factor analysis but we do not seem to find information how I can actually do it. We have already performed one exploratory factor analysis and we extracted six factors with eigen values > 1. What steps do we would like to take? Thank you in advance.

    William L. Johnson


    See articles by Bruce Thompson at Texas A&M University, Texas and Larry Daniel at the University of North Florida.  See articles in Educational and Psychological Measurement by William L. Johnson &  Annabel M. Johnson for both SPSS and SAS  syntax codes.  Also use Horn's parallel analysis for the number of factors to extract.  Or, as Dr. Thompson notes, if you use the eigenvalue criterion (that usually over extracts the number of factors ), then use another method or two to add additional information for your exploratory analysis.  Such research is valuable building a research base in the area your are studying.

  • Mykyta M. Peregrym added an answer:
    What plants are official and folk plant symbols in the Balkan countries?

    I am collecting information about symbol plants of different regions of Europe. Unfortunately, I couldn't find enough information from the Balkans. Any information and references are welcome.

    Mykyta M. Peregrym

    Dear Ana, it is nice presentation! Thank you very much!

  • Robert Cassen added an answer:
    Can school choice and competition between schools actually improve quality of education?

    I am really interested in other researchers' thoughts about school choice and market driven assumptions in the field of elementary and secondary public education. 

    Ever since Milton Friedman presented his voucher plan for schooling a lot of initiatives in this field have been implemented in different countries with different social and economical settings. 

    Bulgaria, my home country, has a specific "market" for public elementary and secondary education where school choice  exists since 1991 and competition among public schools has been implemented in 2007 along with some school autonomy reform. Since then these trends created and still sustain a lot of controversy among educators, politicians, parents and researchers. I tried to briefly describe in the attached document "the rules of the game" in Bulgarian public school education system if you find them interesting.

    I would be grateful if you share your thoughts on school choice and school competition as mechanisms for improving school education and school effectiveness. I am also interested about different points of view on how such policies influence school management and school administration and what questions and dilemmas do you think they raise for school principals.

    Robert Cassen

    Our book has a chapter which covers the research on this issue, for the UK mostly, but also citing other research. See the attached flyer.

  • Randy Lesaca added an answer:
    Does anyone where you can find the English translation of the official Bulgarian public administration law?

    For my current research I need the English translation of the official public administration/statute law in Bulgaria. Thank you.

    Randy Lesaca

    try this:




  • Farhad Nosrati added an answer:
    Where can I find more time series data for a statistical analysis?


    I am looking for data on "Public spending on education, total (% of GDP)" and "Persons engaged (number of employed persons)" for several countries.
    I have problems in finding these two indicators for Bulgaria and Hungary for the moment.

    For Bulgaria I have found the "Public spending on education, total (% of GDP)" for the 1990-2011 time period and "Persons engaged (number of employed persons)" for the 1995-2013 time period.

    For Hungary I have found the "Public spending on education, total (% of GDP)" for the 1970-2011 time period and "Persons engaged (number of employed persons)" for the 1996-2013 time period.

    I would like to find more data.

    Can anyone suggest me where else to search?

    Farhad Nosrati


    I think you can find it at: www.oecd.org

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