( file 1 ) Study program of pupils / evaluation of subjects / difficulty of physics / motivation for choosing physics. ( file 2 ) experience of teachers / kind of school / physics program at school / difficulty of final exam in physics / number of errors found in exams / teaching methods / books used / opinion on final exam / opinion on organization of final exam / opinion on bad results in final exam physics / educational attitude in general and regarding physics. ( file 3 ) results of final exam physics 1976. Background variables: basic characteristics/ education