A researcher wants to compare annual household income across 500 families.  Which graph would be MOST appropriate? 

A researcher predicts that as children’s daily physical activity increases, symptoms of depression decrease.  This hypothesis describes which type of relationship? 

A(n) is a testable prediction about the relationship between two or more variables. 

True or False:  The research process always follows a perfectly linear sequence from beginning to end without revisiting earlier stages. 

Researchers compare two classrooms.  Both classrooms have an average math score of 80.  Classroom A has scores ranging from 78–82.  Classroom B has scores ranging from 55–100.  Which statement is MOST accurate? 

A researcher develops a new survey intended to measure children’s sense of belonging at school.  When the survey is administered twice within one week under similar conditions, students receive nearly identical scores each time.  However, experts conclude that the survey mostly measures school attendance rather than belonging.  Which statement best describes the quality of this measure? 

Using the same table above, what percentage of students reported walking? 

Which research question best reflects a well-designed social science research question? 

Which statement best reflects the purpose of reflexivity? 

A researcher wants to summarize each variable below. Which combination of descriptive statistics is most appropriate?    Variable  Best Measure of Center  Best Measure of Variability  Race/Ethnicity  ?  ?  Household Income (Highly Skewed)  ?  ?  SAT Score (Approximately Symmetric)  ?  ?