Mrs$.$ Gaskill praises all of her students for their$$ performance, yet some kinds of praise seem to be more effective than others.

A$.$

Identify two sources of evidence to support the claim that students who receive$$ lengthy, specific feedback$($Group $2)$ enjoy writing in cursive more than students who receive$$ brief, general feedback$($Group $1).$

B$.$

Explain why the praise given to Group $2$ might be more motivating than the praise given to Group $1.$ Base your explanation on contemporary principles and theories of motivation.