Dental_research_Vorn_Vutha(1-50)

1.      In order to save time and money, psychologists collect their data by?

2.      The specific statistical methods that can be used to summarize or to describe a collection of data is called?

3.      Non-sampling errors are introduced due to technically faulty observations or during the………………of data?

4.      Data is simply the numerical results of any scientific……………?

5.      The……………….process would be required to ensure that the data is complete and as required?

6.      A sample is a portion of the………..population that is considered for study and analysis?

7.      Both the sampling as well as the non-sampling errors must be reduced to a minimum in order to get representative a sample of the………as possible?

8.      A variable is any characteristic which can assume…………value?

9.      The basic objective of a sample is to draw………….about the population from which such sample is drawn?

10.  What is the defining characteristic of experimental research?

11.  Which of the following includes examples of quantitative variables?

12.  Which of the following can best be described as a categorical variable?

13.  What is the opposite of a variable?

14.  The strongest evidence for causality comes from which of the following research methods?

15.  A numerical value used as a summary measure for a sample, such as sample mean, is known as a ?

16.  Since the population size is always larger than the sample size, then the sample statistic?

17.  The sum of the percent frequencies for all classes will always equal?

18.  Since the mode is the most frequently occurring data value, it ?

19.  Mu is an example of a?

20.  The mean of a sample is?

21.  The difference between the largest and the smallest data values is the?

22.  Which of the following is not a measure of central location?

23.  If a data set has an even number of observations, the median?

24.  The sum of deviations of the individual data elements from their mean is?

25.  The value that has half of the observations above it and half the observations below it is called the?

26.  The most frequently occurring value of a data set is called the?

27.  A tabular summary of a set of data showing the fraction of the total number of items in several classes is a?

28.  The standard deviation of a sample of 100 observations equals 64. The variance of the sample equals?

29.  The variance of a sample of 81 observations equals 64. The standard deviation of the sample equals?

30.  Refer to Exhibit 3-2. The median is?

31.  Refer to Exhibit 3-2. The mode is?

32.  Refer to Exhibit 3-2. The mean is?

33.  Refer to Exhibit 3-3. The range is?

34.  Refer to Exhibit 3-4. The mean is?

35.  Which of the following is not a measure of dispersion?

36.  The measure of dispersion that is influenced most by extreme values is?

37.  When should measures of location and dispersion be computed from grouped data rather than from individual data values?

38.  The descriptive measure of dispersion that is based on the concept of a deviation about the mean is?

39.  On matters of academics (knowledge) a researcher should consider himself as?

40.  Given the N values in a series, the geometric mean is ?

41.  Which of the measures given here are based on every item of the series?

42.  A researcher selects a probability sample of 100 out of the total population. It is ?

43.  If x is 4 and the distribution is 2, 3, 4, 5, 6, the sum of squared deviations from the x will be?

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44.  Generalized conclusion on the basis of a sample is technically known as ?

45.  A statistical measure based upon the entire population is called parameter while measure based upon a sample is known as ?

46.  If x is 48, Median is 47, Mode value will be ?

47.  Since the population size is always larger than the sample size, then the sample statistic?

48.   is an example of a?

49.  The stages of a malignant disease (cancer) is recorded using the symbols 0, I, II, III, IV. We say that the scale used is ?

50.  The fundamental statistical indicators are ?