51. The sampling method chosen when the members of a special population are difficult to locate is

  1. Availability sampling
  2. Purposive sampling
  3. Snowball sampling
  4. Dimensional sampling.

52. Which of the following is not an advantage of sampling?

  1. Sampling saves time and money
  2. Sampling cannot be a substitute for census
  3. Sampling saves labour.
  4. Sample coverage permits a higher overall level of adequacy than a full enumeration.

53. Controlled investigations that try to establish cause and effect between two or more variables with the purpose of predic­ting outcomes is

  1. Experimental design
  2. Correlation studies
  3. Survey
  4. Case study.

54. Research used for studying practical problems and finding a solution to it is

  1. Basic research
  2. Applied research
  3. Experimental research
  4. Evaluation research.

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55. Research focused on determining how education works by testing conclusions education works by testing conclusions related to theories of communication, learning, performance and technology is

  1. Theoretical research
  2. Empirical research
  3. Interpretive
  4. Evaluation.

56. The type of research method involving in-depth study and execution of available information in an attempt to explain complex phenomena is known as

  1. Philosophical research
  2. Developmental research
  3. Analytical research
  4. Action research.

57. Which of the following is a quantitative method of data collection?

(a) Observation (b) Correlation (c) Interviews (d) Observation.

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58. The type of interview relying on the sponta­neous generations in the natural flow of interaction is

  1. Informal interview
  2. Semi-structured interview
  3. Open-ended interview
  4. Focus-group interview.

59. Which of the following is not a method to ascertain whether two variables are correlated or not?

  1. Concurrent Deviation method
  2. Method of least squares
  3. Scatter diagram method
  4. Lorenz curve.

60. Which statistical device helps in analysing the covariation of two or more variables?

  1. Regression
  2. Median
  3. Standard Deviation
  4. Correlation.

61. The least possible correlation between two variables is

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(a) -1.00 (b) -0.1

(c) -0.01 (d) -0.001.

62. Which of the following is not a name following dispersion?

(a) Scatter (b) Spread

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(c) Regression (d) Variation.

63. Focus group interviews are aimed at

  1. Homogeneous people with similar backgrounds
  2. Heterogeneous people
  3. People living in same area
  4. People of same religious groups.

64. In testing of hypothesis, research and null hypothesis

(a) Exist together (b) one at a time (c) are invalid (d) are same.

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65. Which of the following is not an average?

  1. Mean
  2. Median
  3. Mode
  4. Standard Deviation.

66. The mean which stands for relative importance of the different items is

  1. Arithmetic mean
  2. Weighted mean
  3. Geometric mean
  4. Harmonic mean.

67. The average amount by which the quartiles differ from the median is represented by the

1.Range

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2. Inter-quartile range

3. Quartile deviation

4. Mean deviation.

68. The concept of Standard Deviation was introduced by

(a) Karl Pearson (b) Fisher (c) Gauss (d) Spearman.

69. Root mean square deviation is also called

  1. Mean deviation
  2. Standard deviation
  3. Variance
  4. Correlation.

70. The square of the standard deviation is called

  1. Mean deviation
  2. Quartile range
  3. Inter-quartile range
  4. Variance.

71. Variance was introduced by

(a) R. A. Fisher (b) Pearson (c) Tchebycheff (d) Spearman.

72. The graphic method of studying dispersion is called

(a) J curve (b) S curve

(c) Lorenz curve (d) Scatter diagram.

73. The middle value in a distribution refer to

  1. Mean
  2. Mode
  3. Median
  4. Geometric mean.

74. Which of the following is a positional average?

  1. Mean
  2. Mode
  3. Median
  4. Harmonic mean.

75. Value in a series of observation which occurs with the greatest frequency is

  1. Mean
  2. Mode
  3. Median
  4. Geometric mean.

76. The formula 3 Median -2 mean is used to compute

(a) Arithmetic mean (b) weighted mean (c) median (d) mode.

77. The Nth rest of the product of N items or values is

  1. Arithmetic mean
  2. Weighted mean
  3. Geometric mean
  4. Harmonic mean.

78. The reciprocal of the arithmetic mean of the reciprocal of the individual observation refers to

(a) Weighted mean (b) geometric mean (c) median mean (d) harmonic mean.

81. First moment about origin measures (a) mean (b) variance (c) skewers (d) kurtosis.

82. The research method used to investigate cultures and population subgroups and seeks to describe and explain cultural behaviour is

(a) Phenomenology

(b) Grounded theory

(c) Ethnography

(d) Action research.

83. The research method emphasizing on developing new knowledge and new theories about the topic being investigated is about the topic investigated is

(a) Phenomenology

(b) Grounded theory

(c) Ethnography

(d) Action research.

84. Which of the following methods of data, the investigator contacts third called witne­sses capable of the necessary information?

(a) Direct personal interview

(b) Indirect oral interview

(c) Observation

(d) Questionnaire.

85. The questionnaire in which sequence of questions is followed is called

(a) Disguised (b) undisguised

(c) Un-structured (d) structured.

86. Which method of research investigates the likelihood of a relationship between two variables and identifies associations rather than cause and effect?

(a) Experimental design

(b) Survey

(c) Case studies

(d) Correlation studies.

87. Theoretical work on t-distribution was done by

(a) Karl Pearson (b) Kelly (c) Fisher (d) Gusset.

88. Mean + | a covers

(a) 68.27% of the items

(b) 95.45% of the items

(c) 99% of the items

(d) 99.73% of the items.

89. in the positively skewed distribution value of

(a) mean is maximum and mode least

(b) Mean least and mode maximum

(c) Mean least and median maximum

(d) Mode least and median maximum.

90. The Arithmetic mean of a continuous series is measured by the formula

(c) X = A + ^i (d) X= N

91. Which of the following is a measure of the variation of the items in a distribution?

(a) Mean (b) Dispersion

(c) Median (d) Mode.

92. The simplest method of studying dispersion is

(a) Range

(b) Quartile deviation

(c) Mean deviation

(d) Standard mean.

93. The difference between the value of the smallest item and the value of the largest item included in the distribution is

(a) Range

(b) Inter-quartile range

(c) Mean deviation

(d) Standard deviation.

94. The difference between the third quartile and the first quartile are represented by

(a) Range

(b) Inter-quartile range

(c) Quartile deviation

(d) Standard deviation.

95. The application of t-distribution to test difference between means of two independent samples is represented by the formula

(X – N)Vn

(c) T =

96. F-test is named after great statistician

(a) Fisher (b) Gosset

(c) Pearson (d) Kelly.

97. Which test is also known as variance ratio test?

(a) F-test (b) Z-test

(c) T-test (d) Chi-square.

98. in a symmetrical distribution

(a) Mean and mode coincide

(b) Mean and median coincide

(c) Mode and median coincide

(d) Median, mean and mode coincide.

99. Which of the following is method of testing the significance of the correlation coefficient samples ?

(a) T-test (b) Z-test

(c) F-test (d) Chi-square.

100. Z-test method was given by

(a) Spearman (b) Fisher

(c) Karl Pearson (d) Kelly.

(a) Fisher (c) Spearman

101. The chi-square was first used by

(b) Gosset (d) Karl Pearson.

Answers

51.

(c)

52.

(b)

53.

(b)

54.

(b)

55. (b)

56. (c)

57. (b)

58.

(a)

59.

(d)

60.

(d)

61.

(a)

62. (c)

63. (b)

64. (b)

65.

(d)

66.

(b)

67.

(c)

68.

(a)

69: (b)

70. (d)

71. (a)

72.

(c)

73.

(c)

74.

(c)

75.

(b)

76. (d)

77. (c)

78. (d)

81.

(a)

82.

(c)

83. (b)

84. (b)

85. (d)

86.

(d)

87.

(d)

88.

(a)

89.

(a)

90. (d)

91. (b)

92. (a)

93.

(a)

94.

(b)

95.

(b)

96.

(a)

97. (a)

98. (d)