Comment by throwaway346434

From: https://ics.uci.edu/~gmark/CHI2005.pdf (sample size: 1x company, n=24, lots of limitations discussed at end of paper)

"When people did resume work on the same day, it took an average length of time of 25 min. 26 sec (sd=54 min. 48 sec.). This may seem like a relatively short amount of time, but it is also important to consider that before resuming work, our informants worked in an average of 2.26 (sd=2.79) working spheres. Thus, people’s attention was directed to multiple other topics before resuming work. This was reported by informants as being very detrimental. In some cases, the physical or desktop environment is restructured, which makes it more difficult to rely on cues to reorient one to their interrupted task. For example, a blinking cursor at the end of the last typed word can enable one to immediately reorient to that document, whereas if other windows have been opened, it can be hard to remember even which document had been worked on."

And "We found a trend that showed more externally interrupted working spheres are resumed on the same day (53.3%) compared to internally interrupted working spheres (47.6%), X2 (1)=2.97, p<.09. Externally interrupted working spheres are resumed on the average in a shorter time (22 min. 37 sec., sd=53 min. 52 sec.) than internally interrupted working spheres, (29 min. 1 sec., sd=55 min. 43 sec.), t(987)=1.92, p<.055."

So no, it does not say 23 minutes and 15 seconds in that paper.

But to say: "the paper never goes into details regarding the recovery time between finishing the interruption and getting back to the original task." is flat out incomplete, because they are reading the followup paper to the original work in isolation; and haven't considered that a number of reports summarized the findings of that (22 m 37s) as "about 23 minutes". The way it is written implies the research is all wrong, rather than more accurately stating "I can't find the exact source of a quote but it's broadly 22-23 minutes, not 23m15s afaict".

There is also some irony in "ctrl+f", "23" being explained as the methodology for review on the topic of attention span for complex tasks...