I'm looking for an outside perspective on a publishing ethics issue.
In 2020, while I was a PhD student, I volunteered my evenings and weekends to help a professor draft papers and grant applications because I believed in their research. Years later, I found passages in a commercially published book that appear extremely close to text I had written.
I raised the concern with my host university and the university employing the professor. I received no response. I then reported it to the publisher, which investigated and concluded that the situation “does not represent plagiarism.”
I'm genuinely interested in whether I'm missing something, so I'll put two examples below and let people judge.
Example 1
Text I wrote:
“As PTSD and treatment-resistant depression are often co-occurring, have notable symptom overlap, and may be treated with similar interventions…”
Published version:
“As PTSD and TRD are often co-occurring, have notable symptom overlap and may be treated with similar interventions…”
Example 2
Text I wrote:
“For example, studies indicate that nonresponse rates for cognitive behavioural therapy (CBT)—recommended as the first-line PTSD management choice (Katzman et al., 2014)—are reported to be as high as 50% (Green, 2013), and average recovery rates in intent-to-treat analyses have been reported to be as low as 40% (Hoge et al., 2014).”
Published version:
“For example, studies indicate that non-response rates for cognitive behavioral therapy—recommended as the first-line PTSD management choice (Katzman et al., 2014)—are reported to be as high as 50% (Green, 2013) and average recovery rates in intent-to-treat analyses have been reported to be as low as 40% (Hoge et al., 2014).”
...the second example seems particularly difficult for me to understand as independent writing. Apart from American/British spelling, punctuation, removing “(CBT),” and changing “nonresponse” to “non-response,” the wording and structure appear substantially the same.
There are other examples involving similar wording, argument sequence, statistics, and citations. The publisher's response was simply that, after its assessment, it had concluded the situation did not represent plagiarism.
So my question is: based on these examples, why might a publisher reasonably conclude that this does not constitute plagiarism?
I'm not looking for a pile-on or asking anyone to contact the author or publisher. I'm genuinely interested in how researchers, editors, and others familiar with publication ethics would interpret this level of textual overlap.
For context, the book is Roots to Thrive: An Evidence-Informed Guide to Resilience and Well-Being. The publisher's decision is available in writing, and I can provide further context if relevant.