"Because the results of the 1995 field tests in music and visual arts showed high percentages of missing data for the music and visual arts teachers' questionnaires, teacher questionnaires were not administered in the 1997 music and visual arts assessments."
So, laymens terms...the teachers didn't provide enough responses in 1995, so we didn't ask about the programs in 1997. Bull-larky! Just because people don't respond, doesn't mean we don't need the information.
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