Simplify the following text for a Grade 13 native English-speaking person.
Original: A U.S. study by Alfred Kinsey found that 75 % of the participants stated that there was never nudity in the home when they were growing up , 5 % of the participants said that there was `` seldom '' nudity in the home , 3 % said `` often '' , and 17 % said that it was `` usual '' .
Simplified: A study by Alfred Kinsey found that 75 % of the participants stated that there was never nudity in the home when they were growing up , 5 % of them said that there was `` seldom '' nudity in the home , 3 % said `` often '' , and 17 % said that it was `` usual '' .