Jackie has irregular periods, therefore, she did not realize she was already 14 weeks along when she took a home pregnancy test. However, the test was negative. What could explain this?
a. hCG levels peak in the 2nd and 3rd month of pregnancy and then drop off to levels that might not be detected by a home pregnancy test.
b. By the 12th week of pregnancy, estrogen and progesterone have leveled off so differences in them are no longer detected by a home pregnancy test.
c. Home pregnancy tests are only able to detect changes in a woman's body related to pregnancy for the first 6 weeks of pregnancy.
d. She was using her early morning urine for the test which tends to be lower in concentration of pregnancy hormones.
a
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In the sentence, "Chris called up the psychology professor," what is the surface structure?
a. "Chris called professor." b. "The psychology professor was called up by Chris." c. "Chris called up the psychology professor." d. "Chris (subject) called up (verb) the psychology professor (object)."
Dr. Beaudette is studying parent-infant attachment and plans to define attachment in terms of the time it takes for a parent to respond to an infant's cries. Defining attachment in this way would:
a. be a testable hypothesis b. provide empirical verification of the concept c. represent an operational definition d. violate general research ethics
For Watson, thinking is:?
a. ?internal speech b. ?imageless c. ?implicit, unlearned behavior d. ?explicit, learned behavior
The presence of a Y chromosome appears to be necessary for life
Indicate whether the statement is true or false