The purpose of this study was to examine factors that affect the reliability and validity of an 8-beat rhythm improvisation performance task that was used during a pilot test of a large-scale music assessment. In addition to analyzing the holistic improvisation scores, two domains of rhythm achievement associated with improvisation performance task were investigated: student ability to begin the improvised "response" on the correct downbeat and student ability to maintain a steady beat during the 8-beat improvisation. Although reliability results were strong and positive for the holistic improvisation scores and entrance analysis, it was found that even with a 5-judge panel, sufficient reliability in measuring student ability to maintain a steady beat could not be established.
Schneider, Christina; Johnson, Robert; and Porchea, Sameano
"Factors that Affect the Measurement of Rhythm Achievement,"
Visions of Research in Music Education: Vol. 5, Article 2.
Available at: https://opencommons.uconn.edu/vrme/vol5/iss1/2