PSY/V/CC/09 Student's Copy
2 0 1 8
CBCS
5th Semester
PSYCHOLOGY
FIFTH PAPER
Research Methodology
Full Marks 75
Time 3 hours
PART A—OBJECTIVE
Marks 25
The figures in the margin indicate full marks for the questions
SECTION—A
Marks 10
Tick the correct answer in the brackets provided 1×10=10
1. describes the purpose of the study in a research and states what the
subject will be asked to do.
Debriefing
Mortality effect
Informed consent form
Privacy
2. The variable is manipulated by the experimenter.
dependent
independent
extraneous
intervening
/114 1 Contd.
3. In sampling, the investigator selects the person according to his
convenience.
purposive
quota
snowball
accidental
4. tests are those tests administered to one person at a time.
Subjective
Objective
Individual
Power
5. A test is used when the shape of the distribution of the population
from which a sample is drawn is not known to be normal.
parametric
non-parametric
t-test
z-test
6. is a parametric test.
t-test
Mann-Whitney U-test
Kruskal-Wallis test
Chi-square test
7. is appropriate for linear relationships.
Spearman's rank-order correlation
Biserial correlation
Partial correlation
Pearson's product moment correlation
PSY/V/CC/09/114 2 Contd.
8. If we predict that the more time students spend studying for a test, the
higher their grades on the test will be, and that the less they study, the
lower their test scores will be, we are expecting to find a
positive correlation
negative correlation
zero correlation
point biserial correlation
9. In a the researcher simply predicts that the two groups being
compared differ, without predicting the direction of that difference.
one-tailed hypothesis
two-tailed hypothesis
null hypothesis
simple hypothesis
10. ANOVA was developed by
Karl Pearson
Ronald Fisher
Sir Francis Galton
Mann and Whitney
SECTION—B
Marks 15
Write short notes on the following 3×5=15
1. Steps in psychological research or Observation
2. Purpose of research design or Validity
3. Applications of non-parametric tests or Characteristics of chi-square
4. Types of correlation or Spearman's rank-order correlation
5. Two-tailed tests of significance or Type I error
PSY/V/CC/09/114 3 Contd.
PART B—DESCRIPTIVE
Marks 50
The figures in the margin indicate full marks for the questions
1. What is psychological research? Discuss the ethical treatment of human
research subjects. 2+8=10
OR
Describe the kinds of experiments used in psychological research. 10
2. What is a research design? Explain between and within group designs.
2+8=10
OR
What is a psychological test? Briefly explain the types of reliability used in
testing. 2+8=10
3. Differentiate between parametric and non-parametric statistics. 10
OR
The table below shows the number of boys and girls who choose each of the
three possible answers to an item on an attitude scale
Yes No Undecided Total
Boys 14 66 10 90
Girls 27 66 7 100
41 132 17 190
Do these data indicate a significant gender difference in attitude? Test the
independence hypothesis and interpret your results. 10
PSY/V/CC/09/114 4 Contd.
4. What is correlation? Elaborate on the history of correlation. 2+8=10
OR
In a study, seven students were made to take two tests X and Y. The
resulting data are presented next
Score On X 8 7 8 9 7 6 5
Score On Y 7 9 8 8 5 6 4
Conduct a Pearson's r to determine the degree of relationship between the
two tests and interpret your results. 8+2=10
5. Define hypothesis testing. Explain the steps and errors in hypothesis
testing. 2+8=10
OR
A psychologist at a private mental hospital was asked to determine whether
if there was any difference in the length of stay of patients with different
categories of diagnosis. Looking at the last five patients in each of the three
major categories, the lengths of stay (in terms of weeks) are given below.
State the null hypothesis and complete an F-test at a 0 × 05 interpect your
results.
Patients Affective disorders Cognitive disorders Drug-related conditions
1 7 11 9
2 6 8 10
3 5 9 12
4 6 13 10
5 6 14 14