Start with handbooks and manuals for an overview of the topic. From the library website, click on Research by Subject. Chose All Databases A-Z, choose Knovel. Enter the term critical incident technique.
Next, search the library catalog to find books. Use the term critical incident technique as a keyword and limit to Wentworth if you want to find physical books on location or ebooks. You might also search job analysis as keyword to uncover more books.
To find articles, click on Research by Subject, All Databases A - Z, choose Academic Search Premier. Enter the phrase "critical incident technique." Many of the articles are full-text and you can click on the PDF button to retrieve, read and print them.