How can you protect the identities of the children you observe? List at least 2 ways.

Yes 21 is the answer. because u use the multiplayer strategy

Answerit was located on high ground above the river

  consider  the  following scenario,  then describe  how  you might conduct  a  study using  ansrs,  convenience sample, and a  voluntary response sample.  you  are  interested  in  parents'  opinion  of the  war  in  iraq.  your population  is  parents  of  high school students.  your question  is, "do you  believe that the  war  in