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scollins44 scollins44
wrote...
Posts: 322
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6 years ago
Which of the following methods is not a good randomization procedure?
 a. Using a computer to generate a list of random numbers.
  b. Using a table of random numbers.
  c. Flipping a coin.
  d. Asking someone to pick numbers randomly between 1 and 10.

Q. 2

For each relationship (conclusions from one or more studies), define what the response and explanatory variables are. Drinking as little as two cups of coffee before exercising limits the blood flow to the heart. An experiment with 18 young adults showed that when the subject remained inactive, the caffeine had very little affect, but after the subject participated in exercise, the caffeine slowed down the blood flow to the heart.

Q. 3

For each relationship (conclusions from one or more studies), define what the response and explanatory variables are. Course grades based on student evaluations varied across the various fields. Social science courses generally received higher scores than natural science courses.

Q. 4

For each relationship (conclusions from one or more studies), define what the response and explanatory variables are. College instructors with a Ph.D. degree earn, on average, more than college instructors with only a Master's degree.

Q. 5

For each relationship (conclusions from one or more studies), define what the response and explanatory variables are. Listening to Mozart raised non-verbal IQ scores an average of 8 to 9 points higher than listening to relaxation tapes.

Q. 6

For each relationship (conclusions from one or more studies), define what the response and explanatory variables are. Second hand smoke (passive smoke) is a risk factor for chronic lung disease.

Q. 7

For each relationship (conclusions from one or more studies), define what the response and explanatory variables are. The oldest child in a family is more likely to favor the death penalty than the middle or youngest child.

Q. 8

For each relationship (conclusions from one or more studies), define what the response and explanatory variables are. Children who take the time to eat breakfast get higher grades in school than children who don't eat breakfast.

Q. 9

For each relationship (conclusions from one or more studies), define what the response and explanatory variables are. The average life expectancy in Russia dropped from 64 years (1991) to 57 years (1995). One theory was that radiation from nuclear fallout was responsible.
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Replies
wrote...
6 years ago
Answer to #1

D

Answer to #2

Response: Presence of slowing down of blood flow; Explanatory: Activity of subject (inactive or exercise).

Answer to #3

Response: Course grades from the student evaluations; Explanatory: Field of study (social science or natural science).

Answer to #4

Response: Income; Explanatory: Education (Master or PhD.)

Answer to #5

Response: Non-verbal IQ scores; Explanatory: Playing Mozart or a relaxation tape.

Answer to #6

Response: Chronic lung disease; Explanatory: Second hand smoke.

Answer to #7

Response: Favoring the death penalty; Explanatory: Birth order (oldest child in the family).

Answer to #8

Response: Grades in school; Explanatory: Eating breakfast

Answer to #9

Response: Life expectancy; Explanatory: Radiation from nuclear fallout.
scollins44 Author
wrote...
6 years ago
This calls for a celebration Person Raising Both Hands in Celebration
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