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6 Written questions

6 Multiple choice questions

  1. a variable in a functional relation whose value determines the value or values of other variable
  2. start as a hypothesis about something, explains a phenomenon and then test the hypothesis
  3. Other variables may affect the relationship between an independent and dependent variable. A variable that directly or indirectly effects the dependent variable because of its relationship with the independent variable is what is called an mediating or intervening variable. In other words this variable serves to mediate or act as a "go between" in the relationship between the independent and dependent variable. A causal chain is created where the independent variable has an effect on the mediating variable which in turn effects the dependent variable.
  4. changes as a result of independent variable
  5. a testable prediction used to see how something works or to solve a problem
  6. refers to surface attributes that can be easily quantified, objectivity-precision, generalizing

6 True/False questions

  1. Quantitative InquiryThis what you need:


  2. Concept(Time Spent Studying) causes a change in (Test Score) and it isn't possible that (Test Score) could cause a change in (Time Spent Studying). We see that "Time Spent Studying" must be the independent variable and "Test Score" must be the dependent variable because the sentence doesn't make sense the other way around.


  3. Exampleconcept being investigated that is characterized by different attributes-male/female-class


  4. Exampleor example, a mediating variable explains the actual relationship between the following variables. Most people will agree that older drivers (up to a certain point), are better drivers. Thus: aging \to better driving But what is missing from this relationship is a mediating variable that is actually causing the improvement in driving: wisdom. The mediated relationship would look like the following: aging \to increased wisdom \to better driving (And yes, it could also be argued that instead of increased wisdom it is increased responsibility for one's actions, but separating those two is difficult to do.) Mediating variables are often contrasted with moderating variables, which pinpoint the conditions under which an independent variable exerts its effects on a dependent variable. A moderating relationship can be thought of as an interaction. It occurs when the relationship between variables A and B depends on the level of C. In fact, the best explanation of the above relationship is a combination of mediating and moderating variables. Increased age does often lead to increased wisdom, but it also requires the maintenance of good reflexes. Thus, there is an interaction between age and reflexes that serves as a moderating variable. Increasing age only improves driving until reflexes begin to suffer, at which point the moderator variable (age x reflexes) results in worse driving. Or: aging \to increased wisdom \to better driving \to worse driving (until) aging \to decline in reflexes


  5. What's an independent variable?An independent variable is exactly what it sounds like. It is a variable that stands alone and isn't changed by the other variables you are trying to measure. For example, someone's age might be an independent variable. Other factors (such as what they eat, how much they go to school, how much television they watch) aren't going to change a person's age. In fact, when you are looking for some kind of relationship between variables you are trying to see if the independent variable causes some kind of change in the other variables, or dependent variables


  6. variableconcept being investigated that is characterized by different attributes-male/female-class