THE BMZ ACADEMY
THE BMZ ACADEMY
053 8213
BMZ ACADEMY 061 262 1185/068 053 8213Page 1 of 13
,HMEMS80 Assessment 2
1. If for HMEMS80 Assignment 1 the majority of students were awarded 57%. In terms of the measures
of central tendency, this would mean 57% is the _
a. median
b. majority
c. mean
d. mode
2. Test-Retest Reliability examines
a. consistency across raters
b. the unidimensional nature of a set of items
c. consistency over time
d. consistency between forms
3. A variable that is related to the dependent variable, the influence of which needs to be removed is
called the _ variable.
a. independent
b. control
c. dependent
d. extraneous
4. The process through which new knowledge is discovered is called
a. theory building
b data analysis
c. inferential statistics
d. research
5 The scattergram is a visual representation of the correlation coefficient of the relationship between
two variables.
,a. True
b. False
6. If lecturers are interested in determining whether there is a statistically significant relationship
between the performance of students based on their year marks from assignments submitted during
the semester and the portfolio examination mark, the appropriate statistical test to calculate would be
_____
a. test for dependent groups
b. covariance analysis
c. correlation analysis
d. regression analysis
7. Which of the following is correct about reliability?
a. The challenge with the reliability of equivalence is the length of time allowed to elapse between
testing periods.
b. The length of time allowed between testing and scoring may affect the accuracy of inter?rater
evaluation.
c. If the parallel?forms are really equivalent, the length of time between testing should not be
important.
d. The internal consistency investigates the relationship between different measures of the similar
construct.
8 Which one of the following questions is an example of a qualitative research question?
a. On a scale ranging from 1 (excellent) to 5 (poor), how would you rate your relationship with your
lecturer?
b. How did you experience your honours degree at UNISA?
c. What is your country of origin?
d. How many children do you have?
, 9. Identify the dependent variable in the following hypothesis: "There will be a statistically significant
difference in graduation rates of at? risk high school seniors who participate in an intensive study
program as opposed to at?risk high school seniors who do not participate in the intensive study
program."
a. At?risk high?school seniors.
b. Graduation rates.
c. Participation in intensive study program.
d. Participation group.
10 How do you establish Construct validity?
a. Select a criterion and correlate scores on the test with scores on the criterion in the future.
b. Assess the underlying construct on which the test is based and correlate these scores with the test
scores.
c. Ask an expert if the items assess what you want them to assess.
d. Select a criterion and correlate scores on the test with scores on the criterion in the present.
11. A negative correlation indicates that _
a. when one variable changes value in one direction, the other changes in the same direction
b. there exists an inverse "U" relationship between the variables
c. when one variable changes value in one direction, the other changes in the opposite direction
d. the relationship between the variables is weak
12. Which type of research has immediate application value?
a. Basic research.
b. Literature review.
c. Pure research.
d. Applied research.
THE BMZ ACADEMY
053 8213
BMZ ACADEMY 061 262 1185/068 053 8213Page 1 of 13
,HMEMS80 Assessment 2
1. If for HMEMS80 Assignment 1 the majority of students were awarded 57%. In terms of the measures
of central tendency, this would mean 57% is the _
a. median
b. majority
c. mean
d. mode
2. Test-Retest Reliability examines
a. consistency across raters
b. the unidimensional nature of a set of items
c. consistency over time
d. consistency between forms
3. A variable that is related to the dependent variable, the influence of which needs to be removed is
called the _ variable.
a. independent
b. control
c. dependent
d. extraneous
4. The process through which new knowledge is discovered is called
a. theory building
b data analysis
c. inferential statistics
d. research
5 The scattergram is a visual representation of the correlation coefficient of the relationship between
two variables.
,a. True
b. False
6. If lecturers are interested in determining whether there is a statistically significant relationship
between the performance of students based on their year marks from assignments submitted during
the semester and the portfolio examination mark, the appropriate statistical test to calculate would be
_____
a. test for dependent groups
b. covariance analysis
c. correlation analysis
d. regression analysis
7. Which of the following is correct about reliability?
a. The challenge with the reliability of equivalence is the length of time allowed to elapse between
testing periods.
b. The length of time allowed between testing and scoring may affect the accuracy of inter?rater
evaluation.
c. If the parallel?forms are really equivalent, the length of time between testing should not be
important.
d. The internal consistency investigates the relationship between different measures of the similar
construct.
8 Which one of the following questions is an example of a qualitative research question?
a. On a scale ranging from 1 (excellent) to 5 (poor), how would you rate your relationship with your
lecturer?
b. How did you experience your honours degree at UNISA?
c. What is your country of origin?
d. How many children do you have?
, 9. Identify the dependent variable in the following hypothesis: "There will be a statistically significant
difference in graduation rates of at? risk high school seniors who participate in an intensive study
program as opposed to at?risk high school seniors who do not participate in the intensive study
program."
a. At?risk high?school seniors.
b. Graduation rates.
c. Participation in intensive study program.
d. Participation group.
10 How do you establish Construct validity?
a. Select a criterion and correlate scores on the test with scores on the criterion in the future.
b. Assess the underlying construct on which the test is based and correlate these scores with the test
scores.
c. Ask an expert if the items assess what you want them to assess.
d. Select a criterion and correlate scores on the test with scores on the criterion in the present.
11. A negative correlation indicates that _
a. when one variable changes value in one direction, the other changes in the same direction
b. there exists an inverse "U" relationship between the variables
c. when one variable changes value in one direction, the other changes in the opposite direction
d. the relationship between the variables is weak
12. Which type of research has immediate application value?
a. Basic research.
b. Literature review.
c. Pure research.
d. Applied research.
