One of the challenges of conducting health research is that it is impossible, and unethical, to manipulate certain variables, such as sexual behaviors or smoking. The research design that examines differences between groups without manipulating these groups is
A) experimental
B) ex post facto
C) random assignment
D) longitudinal
Question 2
Researchers want to examine whether writing about the experience of breast cancer increases feelings of hope and optimism. Breast-cancer patients were randomly assigned to one of two essay conditions: writing about their breast cancer or writing about
A) hope and optimism.
B) breast cancer diagnosis.
C) writing about everyday tasks.
D) the essay conditions.
Some organisms used as models in genetic research
Stem Cell Research Could Expand Clinical Use of Regenerative Human Cells
Research Methods
Health and Income per Capita: Two Views
Research Methods: A Process of Inquiry
Most Canadian seniors rated their health as good to excellent.