A researcher believes exercise reduces anxiety in women. She identifies a group of women who had not exercised before but are now planning to begin exercising. She gives them a 50-item anxiety inventory. What is the purpose of giving the women the anxiety inventory?
1) To measure their anxiety levels before they start exercising
2) To measure their anxiety levels after they start exercising
3) To determine if exercise has any effect on their anxiety levels
4) To compare their anxiety levels with women who do not exercise