Which of the following is true of experimental studies?
A. They involve manipulation of independent variables.
B. They cannot be used to draw causal conclusions.
C. They can be conducted in any situation without ethical concerns.
D. They can only examine associations between variables.
Answer: A
You might also like to view...
The answer to the question of why it is almost always males who compete for access to females is _______.
a. parental investment theory b. intersexual selection theory c. both of the above d. neither of the above
The term teratogen refers to __________
A) any environmental agent that causes damage during the prenatal period B) a limited time span during which a part of the body is biologically prepared to develop rapidly C) a rapid period of prenatal neurological development D) a synthetic hormone used to prevent miscarriage
Why is attachment considered to have lifelong consequences?
A. because it becomes part of a child's internal working model of self and his or her feelings of worthiness of love B. because it involves a pattern of parenting that doesn't change over time in a child's life C. because it only involves the relationship with the mother, and children typically spend more time with mothers than with fathers D. because attachment is an inborn, biological characteristic that becomes part of a person's personality
If Emma has a fear that her symptoms are the result of a serious or deadly illness, today she would be diagnosed as having __________, but in previous versions of the DSM, it would have been __________.
A. somatization disorder; Münchausen syndrome B. hypochondriasis; somatic symptom disorder C. somatic symptom disorder; hypochondriasis D. Münchausen syndrome; somatization disorder