An educational researcher conducts a study on sleep and academic performances. He finds a ______ relationship between amount of sleep and GPA and concludes that the study indicates that the relationship exists.
A. positive correlational
B. negative correlational
C. theoretically meaningful
D. statistically significant
Answer: D
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According to the lifespan perspective, development is
a. singularly influenced and involves a single discipline. b. multiply influenced and involves a single discipline. c. singularly influenced and involves multiple disciplines. d. multiply influenced and involves multiple disciplines.
In the strange situation method, a child who pushes their mother away upon return or clings tightly, is demonstrating
a. avoidant attachment. c. ambivalent/resistant attachment. b. nonattachment. d. negative attachment.
If a score in a distribution changes in numerical value, it will necessary change the ______.
A. range B. interquartile range C. standard deviation D. all of the measures of variability
Stewart is relaxed and focuses on quality-of-life issues. He shows a __________ pattern
a. Type A c. Type C b. Type B d. Type D