= Practice Problem - Answer/Results =

== Effect of Early Song Exposure on DA Release within the Avian Basal Ganglia ==

 * First, calculate the group means/SEM so you can get a general feel for the data.

  ||<-3 style="text-align: center;"> '''Dopamine levels (nM)''' ||
  || '''Animal ID''' || '''Presong exposure''' || '''During song exposure''' ||
  || y33 || 35 || 37 ||
  || y34 || 22 || 30 ||
  || y35 || 25 || 27 ||
  || y36 || 23 || 29 ||
  || y37 || 31 || 35 ||
  || y38 || 20 || 22 ||
  || Mean || 26.0 || 30.0 ||
  || SEM || 2.4 || 2.2 ||

 * Next, enter the data into Prism and run the appropriate analysis.  
 . NOTE: You should use PAIRED t-test for these data (unpaired yields p=.246)

  {{attachment:da-release-figure1.png}}


 * Finally, construct a summary statement that accurately reflects the results obtained. For example:
 . ''Compared to baseline (before song exposure), DA levels were significantly elevated after song exposure (t=3.873, df=5, p<.02)''.