A government body performs an annual rating of schools. The rating is given a score (called performance rating). In addition, there are the PISA and TIMSS ranking and other global competitiveness ranking shows the education performance of the country. I want to test if there is an impact of the schools rating on those indicators. Does the improvement in the annual assessment scores (increase or decrease) impact the PISA, TIMSS and GCI ? Longitudinal analysis, but I am strutting to plug in the data in SPSS and to identify the test tool to use. I have 3 years schools assessment scores, the indicators results.