Statistics Exercise V

Assignment                     15
Statistics Exercise V

These weekly exercises provide the opportunity for you to understand and apply statistical methods and analysis.
 

All assignments MUST be typed, double-spaced, in APA style and must be written at graduate level Englis,. citing the text in APA format.
 

#1.  What information does the strength of a correlation coefficient convey?
 

#2.  State whether each of the following is an example of a positive correlation or a negative correlation. Higher education level is associated with a larger annual income.Increased testosterone is associated with increased aggression.The smaller the class size, the more students believe they are receiving a quality education.Rising prices of apples are associated with the sale of fewer apples.
#3.  Which is the predictor variable (X) and which is the criterion variable (Y) for each of the following examples? A researcher tests whether the size of an audience can predict the number of mistakes a student makes during a classroom presentation.A military officer tests whether the duration of an overseas tour can predict the morale among troops overseas.A social psychologist tests whether the size of a toy in cereal boxes can predict preferences for that cereal.
Assignment Outcomes:

Assess the concepts underlying appropriate use of various research methodologies 

Analyze how to recognize the inappropriate or deceptive use of research methodology 

Compare/contrast the basic assumptions underlying various statistical operations Summarize the consequences of using various methodological approaches Differentiate between the appropriate and inappropriate application and interpretation of research methods and statistics