If you want to learn more about reading and critiquing a research article, view this archived teleforum originally conducted in August 2011 by the Nursing Quality Network. http:///users/ananqn/?id=7216
Critical theory – the examination and critique of society and culture, drawing from knowledge across the social sciences and humanities . The term has two different meanings with different origins and histories: one originating in sociology and the other in literary criticism. This has led to the very literal use of 'critical theory' as an umbrella term to describe any theory founded upon critique.
For a simple example, consider the question of how much Fort Knox should spend on protection.  Fort Knox has never been robbed. Statistical analysis using high-level, aggregated data would therefore indicate that the probability of a robbery is independent of the resources spent on guards. The policy implication from such analysis would be to eliminate the guards and save those resources. This analysis would, however, be subject to the Lucas Critique, and the conclusion would be misleading. In order to properly analyze the trade-off between the probability of a robbery and resources spent on guards, the "deep parameters" (preferences, technology and resource constraints) that govern individual behaviour must be taken explicitly into account. In particular, criminals' incentives to attempt to rob Fort Knox depends on the presence of the guards. In other words, with the heavy security that exists at the fort today, criminals are unlikely to attempt a robbery because they know they are unlikely to succeed. However, a change in security policy, such as eliminating the guards, would lead criminals to reappraise the costs and benefits of robbing the fort. So just because there are no robberies under the current policy does not mean this should be expected to continue under all possible policies. In order to answer the question of how much resources Fort Knox should spend on protection, the analyst must model the "deep parameters" and strive to predict what individuals will do conditional on the change in policy.
What Specifically Do I Look For In An Investigator?