Finding the Evidence: Search Strategies

Sample Answer

Utilizing clinical databases (such as CINAHL, PubMed, or PsycINFO) is fundamentally different from using a standard search engine like Google. In nursing and healthcare, the quality of your evidence directly impacts patient safety and the validity of your academic work.

Here is why utilizing specialized clinical databases is essential for finding peer-reviewed articles:

1. Quality Control and "The Peer-Review Filter"

Clinical databases allow you to toggle a specific filter for peer-reviewed or scholarly journals. This ensures that the articles you find have been vetted by a panel of experts for methodological soundness and accuracy before publication. Standard web searches often mix peer-reviewed data with blogs, editorials, or promotional content that lacks scientific rigor.

Controlled Vocabulary (MeSH and CINAHL Headings)

Clinical databases use "index terms" or "controlled vocabulary," such as Medical Subject Headings (MeSH).

The Problem: One person might call a condition "Heart Attack," while another calls it "Myocardial Infarction."

The Solution: Clinical databases link these terms together. Searching for a MeSH term ensures you find every relevant article on that topic, regardless of the specific wording the author used. This prevents you from missing critical evidence.