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MBA.Graduate Psychology,PHD in HRM
Strayer,Phoniex,
Feb-1999 - Mar-2006
MBA.Graduate Psychology,PHD in HRM
Strayer,Phoniex,University of California
Feb-1999 - Mar-2006
PR Manager
LSGH LLC
Apr-2003 - Apr-2007
Freddie (known as Dr. K. by his students), a renowned researcher in sleep and dreams, hypothesized that there was a relationship between number of hours slept a night and performance on a short-term memory task (memorizing a list of 10 words). He went to one of his school's dining halls and found 50 students who agreed to participate. Each participant completed a brief form indicating average hours of sleep per night. Each participant also completed the short-term memory task. His results were in the form of: Subject 1-- 9 hours (sleep); 5 words remembered; Subject 2 -- 10 hours; 4 words, etc. After completing an analysis, Freddie determined his results were significant at the .20 probability level. He concluded that hours of sleep is related to short-term memory performance-- the more sleep, the worse the performance.Â
a. What type of research is Freddie most likely using?
b. What statistic did he most likely compute?
c. What type of relationship was observed between sleep and performance?
d. What type of sampling did Freddie use for his study?
e. What can you conclude about Freddie's significance level of p=.20?
f. What are at least two problems with this study?
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