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  3. question 1 dr floyd had just finished a group experiment...

Question: question 1 dr floyd had just finished a group experiment...

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Question 1

Dr. Floyd had just finished a group experiment when he was told that the people in Group 1 all went to the same school while people in Group 2 went to a number of different schools. This means Group 1 was a(n) _____ and Dr. Floyd will have to _____.

impartial sample; conduct the experiment gain without that sample
just sample; be honest about the results
biased sample; conduct the experiment again without a biased sample
narrow minded sample; extrapolate more from his results

Question 2

The census is taken every decade in the United States and gives information regarding the "typical" or "average" American. Based on this information, what statistic is the census using?

the median
the p-value
the mean
correlations

Question 3

Sam conducted a field study that found a strong correlation that said the longer a couple is married the more often they know what the other person is thinking. How would this correlation be expressed?

.9
.5
-.8
-.1

Question 4

Jeff conducts a study on cell phone texting behavior in classrooms by immersing himself in classrooms and noting the number of texts sent by students throughout the day. He found that 75 percent of students tend to text during class. Sarah was also interested in texting behavior but she sent out surveys to college students asking about their texting habits. She found that 60 percent of students tend to text during class. Jeff utilized a _____ study with _____ data-collection methods while Sarah utilized a _____ study with _____ data-collection methods.

descriptive; observational; descriptive; self-report
descriptive; self-report; descriptive; observational
correlational; observational; correlational; self-report
experimental; self-report; experimental; observational
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