public service

i need answers to these questions

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..q1: Some scholars have viewed public policy implementation from either a “top down” or “ bottom up” perspective. Define the essential characteristics of each approach and illustrate how one might study the implementation of a policy of your choice, drawing on examples from either the Birkland text or the lecture material.

q2:

Answer one of the following two questions:

Question 2.

Define the essential characteristics of “program evaluation”. Select a policy of your choice and propose a design for how you would evaluate that policy. What data would you collect and how would you analyze those data?

Question 3.

Stepping back from the assigned reading and the lectures of policy evaluation, what do you consider the major impediments to conducting an evaluation that will hold up to scrutiny? What are the threats that you must consider and how do you address them?