Dr. aba is conducting a study to see whether there is a relationship between birth order and shyness. to assess participants' shyness, dr. aba uses a questionnaire: a score of 0-5 on the questionnaire indicates extreme shyness; 6-10, moderate shyness; 11-15, normal shyness; 16-20, moderate lack of shyness; and 21-25, extreme lack of shyness. this use of the questionnaire establishes a(n) of shyness.

We can define operational definition as it explains the concepts or variables by the way they are measured, anything that can be measured is a variable. Dr. Aba is conducting a study between birth order and shyness, so she needs to develop an operational definition of birth order and shyness.

even though you have attached neither the chart nor the generalizations, i have located them online. the right answer is d, since they are asking you about a generalization. you can only infer from the chart that between 2008 and 2009 the number of employed workers decreased significantly (from over 115 millions to 107 millions approximately), which signals some type of economic crisis.  

answer; ///relational devaluation;