B. Identification

For each of the following brief research scenarios, identify the independent variable and dependent variable. Then, identify whether the independent variable is manipulated or selected.

  1. An investigator tests a hypothesis about personal space by measuring (unobtrusively) the distance between a speaker and a listener as they are observed conversing in pairs or in groups of three on a campus mall.

    INCORRECT (b)   DV     a.  conversing in pairs or in groups of three
    INCORRECT (a)   IV     b.  distance between a speaker and a listener
    INCORRECT         IV is Manipulated Selected

  2. Children from three different grade levels (1st, 3rd, 5th) are presented a moral dilemma (involving a hungry person who steals food) as a test of their moral reasoning ability.

    INCORRECT (b)   DV     a.  grade levels (1st, 3rd, 5th)
    INCORRECT (a)   IV     b.  moral reasoning ability as measured from child's response to the moral dilemma
    INCORRECT         IV is Manipulated Selected

  3. A clinical psychologist uses two different "prompting methods" with adult patients to determine whether the methods differ in the degree to which memories of childhood abuse are elicited from the patients.

    INCORRECT (a)   DV     a.  degree to which memories of childhood abuse are elicited from patients
    INCORRECT (b)   IV     b.  two different "prompting methods"
    INCORRECT         IV is Manipulated Selected

  4. Employees at a manufacturing plant are asked to work under three different levels of illumination during a month-long study of worker productivity.

    INCORRECT (a)   DV     a.  worker productivity
    INCORRECT (b)   IV     b.  three different levels of illumination
    INCORRECT         IV is Manipulated Selected

   All answers are Correct!