A psychologist wanted to find out whether the development of the ability to form

Question

A psychologist wanted to find out whether the development of the ability to formulate abstract concepts could be improved by special training. Ten sets of 5-year old identical twins were the subjects. The twenty children were given 25 conceptual problems to solve, and it was found that none of them could offer any correct solutions. Following the test, one twin in each set was randomly selected and given a 30-minute training session every day for 3 weeks. The other twin in each set received no training. Six months after training was completed, all 20 children were give a new set of 25 conceptual questions. All children improved on the second testing.

60.     The dependent variable in the study was

          a.   whether the subjects were in the placebo group

          b.   whether the subjects received the training

          c.   the scores on the conceptual test

          d.   none of these

61.     This is an example of

          a.   post-facto research

          b.   experimental research

          c.   correlational research

          d.   none of these

Explanation / Answer

60. The dependent variable in the study was the scores on the conceptual test.

Option c is correct.

61. Since training is being provided, this is an experimental research.

Option b is correct.

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