Welcome to your Stat Quiz 04 Your Name 1. In the context of relationship between variables, increases in the values of one variable are accompanied by increases in the values of the second variable in a _____ relationship.non-linearnegative linearpositive linearcurvilinear2. A numerical index of the strength of relationship between variables is called a _____ coefficient.correlationrandomlinearbiaxial3. A psychologist develops a measure of self-esteem in order to study the variable of self-esteem. He then conducts a number of studies investigating the differences between candidates who score low and candidates who score high on self-esteem. He does so to devise an accurate method of studying self-esteem. In this case, the psychologist is trying to establish _____.reliabilityconstruct validityinternal validityreactivity4. A researcher finds that the more a song is played on the radio, the greater the liking for the song. However, she also finds that if the song is played too much, people start to dislike the song. In the context of relationship between variables, what type of relationship exists between the song and its likeness factor?Positive linear relationshipNegative linear relationshipNo relationshipCurvilinear relationship5. A study has high _____ validity when strong inferences can be made that one variable caused changes in the other variable.constructinternalinferentialreliable6. Which of the following is an important benefit in operationally defining a variable?It ensures accuracy of conclusions about cause and effect.It enables scientists to discuss concrete concepts in abstract terms.It helps researchers to communicate their ideas with others.It enables to generalize the findings of a study to other settings.7. A _____ is any event, situation, behavior, or individual characteristic that changes.variableparametersystemmodule8. In the context of relationship between variables, when the graph is simply a flat line, it shows that there is _____ between the two variables.a curvilinear relationshipa negative linear relationshipno relationshipa positive linear relationship9. A researcher desires to study the relationship between stress and an employee’s ability to perform at work. However, he finds that there is no direct relationship between the two. He also notices that presence of a supervisor in the environment is establishing a relationship between stress and employee’s ability to perform. In this context, supervisor’s presence is acting as a _____ variable.dependentparticipantsituationalconfounding10. _____ validity concerns whether the methods of studying variables are accurate.LinearExternalConstructInternal
