Regarding difference thresholds, which of the following statements is TRUE?
a. Difference thresholds occur when we can first detect some stimulus.
b. Difference thresholds occur when we can first detect the change in the intensity of a stimulus.
c. Difference thresholds involve the decrease in sensory response to an unchanging stimulus.
d. Difference thresholds involve the mental process of organizing sensations into meaningful patterns.
ANSWER: b
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Arielle and her husband want to have a child, but her husband has a medical condition that prohibits him from producing adequate sperm. She will attempt a procedure in which a fertilized egg will be implanted in her fallopian tubes. Which procedure will Arielle undergo?
A. artificial insemination B. embryonic implant C. fertilization D. zygote intrafallopian transfer
The difference between a point biserial coefficient and a normal Pearson correlation coefficient is that
a. a point biserial correlation is based on two continuous variables. b. a point biserial correlation is based on one dichotomous variable and one continuous variable. c. a point biserial correlation is based on two dichotomous variables. d. the kind of variable has nothing to do with the issue.
The permissive parenting approach is characterized by _____ acceptance-responsiveness and _____ demandingness-control
a. high; high b. high; low c. low; high d. low; low
The natural sex ratio at birth is close to 50:50
Indicate whether this statement is true or false.