Question

semester : 3
1. What does randomization ensure in experimental research?
(a) Uniformity of the groups
(b) Similarity of the groups
(c) Uniformity and similarity of the groups (d) Uniformity, similarity and equal
groups.
2. Power of the test of significance means probability of what?
(a) Incorrect rejection of the null hypothesis
(b) Correct rejection of the
(c) Incorrect acceptance of the null hypothesi
(d) Correct acceptance of th
3. What does F-ratio mean?
(a) A ratio between mean SSA and mean SSw
(b) A ratio which is always
(c) A ratio between mean S ST and mean SSA
(d) A ratio between means
4. In which situation x? (Cbi square) test can be used?
(a) k-2, but some expected frequencies are less than S
(b) df is greater than I, but more than 20 per cent of frequencies are smaller than S
(c) Any expected frequency is smaller than I
(d) None of the above is f
5. What is wrong about non-parametric tests or significance?
(a) They are distribution-free techniques of analysis
(b) They assume that groups should be homogeneous
(c) They make no assumption about the parameters
(d) They do make certain assumptions, but these are fewer and less stringent.
6. In evaluating the significance of the research problem, an important social ca
(a) The genuine interest of the researcher in the problem.
(b) Practical value of the findings to educationists, parents and social workers, etc.
(c) Necessary skills, abilities and background of knowledge of the researcher.
(d) Possibility of obtaining reliable and valid data by the researchers.
7. A hypothesis in educational research need not be
(a) A compatible with well-attested theories and models.
(b) Logically consistent and pertinent to the question under consideration.
(c) Capable of establishing generalizations that can be applied in many areas of ed
(d) None of these.
8. Thinking analogously about hypothesis, a researcher should
(a) First bet and then roll the dice
(b) First roll the dice
(c) Change his bet after the data are in.
(d) Have not
9. If the population on which a study is based is such that all its units can be
(a) Target population.
(b) Accessible popu
(c) Homogeneous population.
(d) Heterogeneous
10. Sampling frame means
(a) Identification of target and accessible population. (b) Defining sample uni
(c) Preparing a complete list of the units of a finite population for drawing
(d) Fixing the sample size and drawing a sample.​

Answer 1

Answer:

1.d

2.b

3.a

4.d

5.b

6.b

7.c

8.a

9.b

10.c

Answer 2

Answer:

1 - d ; 2 - b ; 3 - a ; 4 - d ; 5 - b ; 6 - b ; 7 - c ; 8 - a ; 9 - b ; 10 - c

Explanation:

1. The drawing process plays a crucial role in ensuring appropriate blend uniformity. Complete randomization of the feed cans is a simple but efficient way to do this. Controlling the components, on the other hand, is even more critical.
2. The likelihood of rejecting the null hypothesis when it is untrue, or the probability of avoiding a type II mistake, is the power of a test.
3. The F ratio is equal to the difference between two mean square values. If the null hypothesis is correct, you should anticipate F to be near 1.0 the majority of the time. A high F ratio indicates that the variation in group means is more than would be expected by chance.
4. A chi-square test is used to see if observed findings match expected results and to rule out the possibility that observations are random. When the data being studied is from a random sample and the variable in issue is a categorical variable, a chi-square test is applicable.
5. When group variability differs, nonparametric analyses may not produce correct results. Parametric studies, such as the 2-sample t-test or one-way ANOVA, on the other hand, allow you to examine groups with uneven variances.
6. A research problem is a definite or clear expression about a source of concern, a condition that needs to be improved, a problem that needs to be solved, or a perplexing question that exists in scholarly literature, theory, or practice and indicates the need for meaningful understanding and deliberate investigation. A research challenge does not tell you how to achieve anything, make a broad or ambiguous proposal, or pose a value question.
7. A hypothesis is a statement that opens a research issue and suggests a possible outcome. It is an essential component of the scientific method and serves as the foundation for scientific experiments. As a result, when developing your hypothesis, you must be cautious and comprehensive.
8. First, place a wager, and then roll the dice.
9. Accessible pop-up
10. The sampling frame is a list of units from which the sample is drawn. The 'list' could be a physical listing of units, such as a phone book from which phone numbers will be sampled, or a population description, such as a map from which areas will be sampled.

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