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51
"Sampling error" can be reduced by
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Answer: Option A
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52
The . . . . . . . . , though difficult to calculate, is the best measure of dispersion since it takes into consideration the whole data and the deviations are taken from the arithmetic mean.
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Answer: Option B
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53
Whenever we want to compare the variability of two series which differ widely in their averages or which are measured in different units, we calculate the . . . . . . . . , which being ratios, are numbers independent of the units of measurement.
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Answer: Option B
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54
The . . . . . . . . method is employed extensively in studies related to children, animals, birds, insects etc.
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Answer: Option B
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55
"Averages are statistical constants which enable us to comprehend in a single effort the significance of the whole", was said by
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Answer: Option A
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56
Which one of the following statements is correct about homogeneous test
1. Validity is dependent upon reliability
2. Reliability is dependent upon validity
3. Reliability and validity are contradictory
4. Poor reliability yields high validity
Select your answer:
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Answer: Option A
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57
If a test yields similar results on different occasions; it is considered
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Answer: Option A
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58
When the lower half before the median is divided into two equal parts, the value of the dividing variate is called
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Answer: Option A
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59
. . . . . . . . coefficient are desirable if test scores are to be used to help an individual with an important decision
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Answer: Option C
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60
. . . . . . . . in psychology formerly were associated chiefly with test construction and the interpretation of test results.
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Answer: Option A
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