Two months after her husband's death, Connie was still not herself. She often forgot to feed the dog, was late for work on a regular basis, and had not yet thrown out his clothes. Which of the following diagnoses could apply to Connie according to the DSM-5?
a. adjustment disorder with depressed mood
b. dysthymia
c. postpartum depression
d. major depressive disorder

What is the difference between an observational study and an​ experiment? choose the correct answer below. a. in an​ experiment, a treatment is applied to part of a population and responses are observed. in an observational​ study, a researcher measures characteristics of interest of a part of a population but does not change existing conditions. b. in an​ experiment, a treatment is applied to an entire population and responses are observed. in an observational​ study, a researcher measures characteristics of interest of an entire population but does not change existing conditions. c. in an​ experiment, a researcher measures characteristics of interest of a part of a population but does not change existing conditions. in an observational​ study, a treatment is applied to part of a population and responses are observed. d. in an​ experiment, a researcher measures characteristics of interest of an entire population but does not change existing conditions. in an observational​ study, a treatment is applied to an entire population and responses are observed.