The Single File Screen shows the result of pressing the Analyse Single File button on the front screen. Any files selected in the work file box will be examined as individual texts. This is the only non-comparative element in CopyCatch.

This is generally used where the reader thinks that there may other hands at work in the essay but can't easily find the source or sources.

The screen shows in red sentences which seem to the program to fit less well with the rest of the text and so might be candidates for Search Engine look up.

Choosing whole sentences, clauses or sets of words from the red sentences can find a source.

For example, you could highlight the first clause in the red sentence on the example screen, Okonkwo is a tragic hero in the classical sense and press Ctrl-C to copy it. When you feed this into Google with quote marks surrounding it, you will probably only get a couple of hits, and the first will almost certainly be Spark Notes.

Where multiple sources are suspected, this screen can help you find a number of them in turn.