Is program evaluation a science, an art, or both? Explain your reasoning. Describe the four program stages of the comprehensive evaluation typology. Explain why evaluation needs vary across these...

Is program evaluation a science, an art, or both? Explain your reasoning.

Describe the four program stages of the comprehensive evaluation typology. Explain


why evaluation needs vary across these stages.

What may cause a program to move back and forth among the stages, instead of  moving in chronological order? Is it important for the evaluation to skip around as


well, if this happens? Why or why not?