Outline the three stages of labor
What will be an ideal response?
A good answer would include the following points:
- In the first stage of labor, uterine contractions initially occur every 8-10 minutes and last 30 seconds. Toward the end of labor, contractions may occur every 2 minutes and last as long as 2 minutes. As the contractions increase, the cervix becomes wider, eventually expanding to allow the baby's head to pass through. The first stage of labor is the longest and typically takes 16-24 hours for firstborn children.
- During the second stage, which typically lasts around 90 minutes, the baby's head starts to move through the cervix and birth canal. The second stage ends when the baby has completely left the mother's body.
- The third stage of labor occurs when the umbilical cord and the placenta are expelled from the mother. This stage is the quickest and easiest, taking just a few minutes.
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It was assumed by Tolman and others that research on white rats would ____
a. ?demonstrate the role of reinforcement in learning b. ?provide the basic foundation from which other studies could be devised in order to replicate the results with other species c. ?provide insights into the basic processes underlying the behavior of humans and other animals d. ?yield basic information on motivation and motivation e. ?serve as an intervening variable between higher and lower species
With a paired-samples t test, you will usually compare the sample mean for the difference score to ______.
A. -1 B. 0 C. +1 D. it varies from sample to sample
When were the earliest reported case of a disorder with psychotic-like symptoms?
A. 20 years ago B. 100 years ago C. 4,000 years ago D. 100,000 years ago
People with expertise are likely to demonstrate all of the following EXCEPT __________
a) use of different neural pathways to solve problems b) greater flexibility in approaching problems c) automatic processing of information d) limited ability to transfer these skills to other areas