Sir Francis Galton noted that, on a scatterplot, a regression ...

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Sir Francis Galton noted that, on a scatterplot, a regression line's slope portrays the __________ and __________ of the relationship between the two variables.
 
  a. strength; direction
  b. cause; effect
  c. main effect; interaction
  d. history; maturation

Question 2

James is conducting a within-subjects research design and he is concerned that his subjects may discover the purpose of the research because they are exposed to more than one condition of the study.
 
  Therefore, it appears that James is concerned that his study might be confounded by
 
   a. participant bias.
   b. subject mortality.
   c. statistical regression.
   d. the use of a Latin square design.

[maya.nigrin17@yahoo.com]

Answer to Question 1

a

Answer to Question 2

a

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Gracias!

[peter]

Excellent