Kaja Ballo, daughter of Norwegian politician Olav Ballo, took a personality test administered by a Scientology center in Nice, France, Aftenposten said Wednesday.
Family and friends described the 20-year-old in a generally good mood until Friday, March 28, when she "changed" after reading the results from the test.
She took her own life hours later.
A Scientology spokesman called the allegations "deeply unfair" and pointed to an eating disorder and other psychological issues she experienced in her early teens.
Critics say the break-you-down-build-you-up recruitment tool of Scientologists is controversial.