I am writing an academic paper on a study. The study states that their research was conducted in various months throughout the year (Sept, Oct, Jan, Apr, etc.). Can I say the following:
Morse and Neuberg conducted a study involving numerous participants over the span of four months.
Does "over the span of" have to refer to consecutive months?
Note: I cannot say throughout because the months are not in a stated time span (i.e. 2012-2013).