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. Author manuscript; available in PMC: 2011 Jan 1.
Published in final edited form as: Dev Neurobiol. 2010 Jan;70(1):41–57. doi: 10.1002/dneu.20752

Table 2.

Statistical effects of song environment* and mean song length (s) on song count (n = 18 males).

Independent variables Estimate Standard Error z Score p-value
Song Environment 0.4657 0.0874 5.33 < 0.001
Mean Song Length 0.1029 0.0121 8.48 < 0.001
Intercept −0.2731 0.4784 −0.57 > 0.2
*

Coded 0 for short song, 1 for long song