SOLVED. Sci Fi/ Fiction, possibly YA. Group of high school students in USA participate in a study/project that will hypothetically predict their lives after graduation. Technology avail. fairly basic, set 1980-90s? Read 2000s, before 2011. Spoiler. [s]

[Giulia]

Spoiler: One member of the group drops out of the program last minute. This changes the result of the predictions so that when each remaining student watches their possible future (I think they were shown privately, on some kind of reality simulator) a different group member each time had passed away. Also greatly effects the prospective future group dynamics.

[Becca]

The Night Room by E. M. Goldman?

[PaulGamerBoy360]

E.M. Goldman for the Author Link

[Giulia]

Becca wrote: "The Night Room by E. M. Goldman?"
This is definitely it! Thank you :-)