Yes, I'm sure - by criminologists. So not likely to be in the news or SM, but in textbooks and research papers. Psychology of the criminal mind, but also research on deterence.
There may well have been criminal profilers involved in this case, trying to learn what they could about the 4 accused, in order to assist police in, for eg, how to carry out the arrests, and how to do the interviews.
Based on what they could learn about TA, they'd have chosen a particular type of person to interview her: either someone she would respect, or someone who wouldn't threaten her, or someone she could even bond with. Whatever they believed would be most effective, based on her profile. And that person would be very highly trained in how to interview, and well briefed on her personality, likely motives, relationships...
And, it worked, since they got some kind of admission of guilt out of her.
JMO
ETA I just remembered, there's a long interview on youtube with Chris Watts in prison by criminal profilers. I can't recall much, plus he tended to continued to lie about the actual sequence of the murders, even when he doesn't have to. He doesn't want to look like a terrible person, even though, yes, he did kill his wife and children...