The quiz Topten items for revision of firstyear

10 (-) The arithmetic average is also known as the a. b. c. d.

9 (10) Which of the following is a better measure of variation for distributions

8 (8) In a normal distribution, a. b. c. d. the majority of scores

7 (4) The graph which illustrates the degree of a relationship between two variables

6* (9) As the difference between the means of two groups grows larger, the

5 (7) Summary statistics are used to a. b. c. d. determine statistically significant

4 (1) The appropriate test of statistical difference between two samples of interval level

3 (3) A variable that can have an infinite number of values is called

2* (6) If the finding of a study can be generalised to situations outside

1* (-) A correlation of zero means that a. b. c. d. two variables

End of the quiz Top-ten items for revision of first-year research methods RDA 2

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The quiz Top-ten items for revision of first-year research methods RDA 2 (PSY 2001 -N) 1

10 (-) The arithmetic average is also known as the a. b. c. d. mean median mode central tendency RDA 2 (PSY 2001 -N) 2

9 (10) Which of the following is a better measure of variation for distributions that contain extreme scores? a. b. c. d. Range Mean Standard deviation Semi-interquartile range RDA 2 (PSY 2001 -N) 3

8 (8) In a normal distribution, a. b. c. d. the majority of scores fall between the first and second standard deviations the standard deviation is equal to the mean the majority of scores fall within one standard deviation on either side of the mean the majority of scores fall between the second and third standard deviations RDA 2 (PSY 2001 -N) 4

7 (4) The graph which illustrates the degree of a relationship between two variables is a _______; the statistical procedure which more precisely represents this relationship is the ______. a. scattergram; standard error of the mean b. frequency polygon; product moment correlation c. frequency polygon; critical ratio d. scattergram; product moment correlation RDA 2 (PSY 2001 -N) 5

6* (9) As the difference between the means of two groups grows larger, the likelihood that their difference is statistically significant a. b. c. d. decreases increases remains the same is due to error RDA 2 (PSY 2001 -N) 6

5 (7) Summary statistics are used to a. b. c. d. determine statistically significant differences between groups of data show basic characteristics of a sample of data make predictions about relationships between data describe how an individual score compares to a sample RDA 2 (PSY 2001 -N) 7

4 (1) The appropriate test of statistical difference between two samples of interval level data gathered from two different sets of people would be a. b. c. d. the chi-square test Spearman’s rho independent samples t-test Mann-Whitney U test RDA 2 (PSY 2001 -N) 8

3 (3) A variable that can have an infinite number of values is called a. dichotomous b. continuous c. nominal d. ordinal RDA 2 (PSY 2001 -N) 9

2* (6) If the finding of a study can be generalised to situations outside the laboratory, it has a. b. c. d. internal validity internal consistency external validity RDA 2 (PSY 2001 -N) 10

1* (-) A correlation of zero means that a. b. c. d. two variables are totally unrelated as the first variable increases the other decreases as the first variable decreases the other increases participants tended to score around zero on both variables RDA 2 (PSY 2001 -N) 11

End of the quiz Top-ten items for revision of first-year research methods RDA 2 (PSY 2001 -N) 12