Descriptive Statistics in Educational Research MCQs
Descriptive Statistics in Educational Research MCQs
Answer these 50 Descriptive Statistics in Educational Research MCQs and see how sharp is your knowledge of Descriptive Statistics in Educational Research
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1: What is the median of the following set of scores: 22, 6, 10, 11, 14?
A. 10
B. 14
C. 11
D. 12
2: We want to predict a person’s achievement test score using his or her years of education and aptitude test score. Here is the appropriate regression equation:Y = 25 + .5X1 +10X2,where Y = achievement test score, X1 = years of education, and X2 = aptitude test score.If the person has 10 years of education and an aptitude test score of 5, then what is his predicted achievement score? (Hint: just insert 10 for X1 and 5 for X2 in the equation.)
A. 25
B. 50
C. 35
D. 80
3: Hypothesis testing and estimation are both types of ______ statistics.
A. Descriptive
B. Predictive
C. Inferential
D. Exploratory
4: How is a set of data organized?
A. Each participant gets a column, and each variable gets a row.
B. Each participant gets a row, and each variable gets a column.
C. Each variable is in a row and each participant’s score is in a different column.
D. Participants get the same number of rows as there are variables.
5: Which of the following is a measure of central tendency?
A. Mean
B. Range
C. Standard deviation
D. Correlation coefficient
6: Which of the following is a measure of variability?
A. Median
B. Variance
C. Intercept
D. Mode
7: What procedure is used to explain or predict the values of a dependent variable based on the values of two or more independent variables?
A. Simple regression analysis
B. Multiple regression analysis
C. Path analysis
D. Predictive regression analysis
8: In a fully normal distribution of scores, which of the following is true?
A. The mean, median, and mode are the same number.
B. The mean is larger than the median.
C. The median is larger than the mean.
D. It depends on the scaling of the numbers.
9: If a test was very easy for the vast majority of students, except for a few students who had very low scores, then the distribution of scores would be ______.
A. Positively skewed
B. Negatively skewed
C. Not skewed at all
D. Normal
10: Which of the following rules is correct when reading a contingency table?
A. If the percentages are calculated down the columns, compare down the columns.
B. If the percentages are calculated down the columns, compare across the rows.
C. If the percentages are calculated down the columns, compare column totals.
D. The numbers must be analyzed by a correlation to be interpretable.
11: Approximately 99% of scores fall within 2 standard deviations of the mean in a normal distribution.
A. True
B. False
12: The square root of the variance is the standard deviation.
A. True
B. False
13: A scatterplot is used to show the frequencies and shape that characterize a single quantitative variable.
A. True
B. False
14: Raw scores that have been transformed into standard deviation units are called z scores.
A. True
B. False
15: A percentile rank reflects the percentage of scores in a reference group that fell below a certain raw score.
A. True
B. False
16: A graph that uses vertical bars to represent the data is called
A. Line graph
B. Bar graph
C. Pie graph
D. All of these
17: In which table displaying information in cells formed by the intersection of two or more categorical variables?
A. Contingency
B. Periodic
C. Math
D. All of these
18: A set of data is known as
A. Data
B. Data set
C. Data value
D. None of these
19: Statistics that focus on describing, summarizing, and explaining a particular set of data is called
A. Descriptive statistics
B. Inferential statistics
C. Statistics
D. All of these
20: Exhaustive refers to the property that the set of intervals covers the complete range of data values is called
A. Exhaustive
B. Descriptive
C. Inferential
D. All of these
21: An arrangement in which the frequencies of each unique data value are shown is frequency distribution
A. True
B. False
22: The data values are clustered or grouped into separate intervals, and the frequencies of each interval are given is grouped frequency distribution
A. True
B. False
23: A set of numbers with a great deal of variability is called
A. Homogeneous
B. Heterogeneous
C. Variation
D. None of above
24: A graphic that shows the frequencies and shape that characterize a quantitative variable is called
A. Instagram
B. Histogram
C. Telegram
D. All of these
25: A set of numbers with little variability is _____
A. Homogenous
B. Heterogenous
C. Progenous
D. All of these
26: Statistics that go beyond the immediate data and infer the characteristics of populations based on samples is _____ statistics
A. Descriptive statistics
B. Inferential statistics
C. Statistics
D. All of these
27: A graph that relies on the drawing of one or more lines is called
A. Line graph
B. Bar graph
C. Pie graph
D. All of these
28: The arithmetic average is known as
A. Median
B. Mean
C. Mode
D. All of these
29: The single numerical value considered most typical of the values of a quantitative variable is measure of central tendency
A. True
B. False
30: A numerical index that provides information about how spread out the data values are or how much variation is present is measure of variability
A. True
B. False
31: Provide information about where a score falls in relation to the other scores in the distribution of data is measure of relative standing
A. True
B. False
32: The 50th percentile is called
A. Median
B. Mean
C. Mode
D. All of these
33: The most frequently occurring number is called
A. Median
B. Mean
C. Mode
D. All of these
34: In which regression based on one dependent variable and two or more independent variables?
A. Single
B. Multiple
C. Normal
D. None of these
35: Which exclusive refers to response categories that do not overlap?
A. Single
B. Mutual
C. Multiple
D. Normal
36: Skewed to the left is negatively skewed
A. True
B. False
37: A unimodal, symmetrical, bell-shaped distribution that is the theoretical model of many variables is normal distribution
A. True
B. False
38: A number that is very atypical of the other numbers in a distribution is called
A. Outlier
B. Range
C. Rate
D. Percentage
39: A regression coefficient obtained in multiple regression is partial regression coefficients
A. True
B. False
40: The percentage of scores in a reference group that fall below a particular raw score is called percentile ranks
A. True
B. False
41: Scores that divide a distribution into _____ equal parts is percentile ranks
A. 10
B. 20
C. 100
D. 150
42: Skewed to the _____ is called positively skewed
A. Right
B. Left
C. Midway
D. None of above
43: The difference between the highest and lowest numbers is called
A. Range
B. Variance
C. Standard deviation
D. None of above
44: The percentage of people in a group who have a specific characteristic is called
A. Rate
B. Speed
C. Velocity
D. Acceleration
45: The norm group that is used to determine the percentile ranks is called reference group
A. True
B. False
46: A set of statistical procedures that are used to explain or predict the values of a dependent variable on the basis of the values of one or more _____ is called regression analysis
A. Dependent variables
B. Independent variables
C. Constant variables
D. None of above
47: The predicted change in Y given a 1-unit change in X is called
A. Regression analysis
B. Regression coefficient
C. Regression equation
D. Regression line
48: The equation that defines the regression line is called
A. Regression analysis
B. Regression coefficient
C. Regression equation
D. Regression line
49: The line that best fits a pattern of observations is called
A. Regression analysis
B. Regression coefficient
C. Regression equation
D. Regression line
50: A graph used to depict the relationship between two _____ is called scatter plot
A. Quantitative variables
B. Qualitative variables
C. Constant variables
D. None of above
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Descriptive Statistics in Educational Research MCQs
