Data Reduction and Descriptive Statistics of Communication MCQs
Data Reduction and Descriptive Statistics of Communication MCQs
Try to answer these 50+ Data Reduction and Descriptive Statistics of Communication MCQs and check your understanding of the Data Reduction and Descriptive Statistics of Communication subject.
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1: Analysis that examines the relationship among three or more variables simultaneously is called _____.
A. Statistics
B. Parameter
C. Biostatistics
D. Calculus
2: Statistics that describe and summarize the data for a sample is called Descriptive Statistics.
A. True
B. False
3: The process of reducing “raw” data to a simpler form by using, for example, summary statistics, tables, or graphs is called ______.
A. Data reduction
B. Descriptive statistics
C. Statistical formulae
D. Parameters
4: All the data from a research project is known as a data set.
A. True
B. False
5: Mean.range and variance is calculated by _____.
A. Statistical formulae
B. Data set
C. Data reduction
D. Tables
6: The values pertaining to a ______rather than a sample .
A. Population
B. Sample
C. Table
D. Formulae
7: Arrangements of data displayed and summarized by rows and columns are called ______.
A. Tables
B. Charts
C. Graphs
D. Flow diagram
8: IBM SPSS® Statistics is one of several statistical software packages used in the ______.
A. Social sciences
B. Mathematics
C. Biology
D. Physics
9: The programming language for statistical computing and graphics that you can use to clean, analyze, and graph your data is called R.
A. True
B. False
10: The Data points are recorded values of each _____, one value for each individual.
A. Variables
B. Constants
C. Values
D. Literals
11: Data that appear suspicious or are not anticipated by a researcher is called _____.
A. Anomalous data
B. Regression
C. Univariate analysis
D. Bivariate
12: Statistics that describe only one variable are _____ analysis.
A. Univariate
B. Bivariate
C. Trivariate
D. Tetravariate
13: The number of times a particular score or result occurs is known as _____.
A. Frequency
B. Voltage
C. Amplitude
D. Period
14: Tables that show categories of a variable by the number of times that category occurs is known as _____.
A. Frequency tables
B. Cross-tabs
C. Bivariate
D. Multivariate
15: Pertaining to two variables is known as bivariate.
A. True
B. False
16: A _____ is a table that shows how scores for two or more variables are related.
A. Cross tabs
B. Anova
C. Logistics regression
D. None of above
17: A table that shows how scores for two or more variables are related is called a contingency table.
A. True
B. False
18: Data that fit into distinct categories such as zip code or academic major is called ____ data.
A. Categorical
B. Continuous
C. Numerical
D. Preliminary
19: Data with incremental values between the minimum and maximum is called _____ data.
A. Categorical
B. Continuous
C. Numerical
D. Preliminary
20: Pertaining to three or more variables is called _____.
A. Multivariate
B. Univariate
C. Bivariate
D. Trivariate
21: The average for a set of scores is called _____.
A. Mean
B. Median
C. Mode
D. None of these
22: The _____of a set of scores is called median.
A. Midpoint
B. Endpoint
C. Startpoint
D. Mean
23: The most frequent score in a set of scores is called ____.
A. Mode
B. Mean
C. Median
D. Range
24: Measurements describing the central features of a data set rather than its outlying values are called measures of central tendency.
A. True
B. False
25: A statistical test for determining whether two groups differ significantly in their distribution of scores on the same variable is called _____.
A. Chi-square
B. T-test
C. Anova
D. Correlation
26: Trimodal distributions of data having three values occurring with _____ frequency.
A. Equal
B. Different
C. Diagonal
D. Perpendicular
27: Distribution of data that shows two values occurring with equal frequency is called _____ distribution.
A. Bimodal
B. Trimodal
C. Multimodal
D. Binary
28: Measurements describing the range and variability of values in a data set are called measures of _____.
A. Dispersion
B. Distribution
C. None of these
D. Both of these
29: The highest value in a data set is known as _____.
A. Maximum
B. Minimum
C. Average
D. Optimum
30: The lowest value in a data set is called
A. Maximum
B. Minimum
C. Average
D. Optimum
31: The difference between the maximum value and minimum value in a data set is called _____.
A. Range
B. Xrange
C. Domain
D. Standard deviation
32: The range between the highest and lowest values for the middle ____ of values in a distribution is called Interquartile Range.
A. 10%
B. 50%
C. 100%
D. 75%
33: A measure of the extent to which a set of scores vary on either side of their mean value is called
A. Range
B. Variance
C. Z-score
D. Deviation
34: A measure of the extent to which a set of scores vary on either side of their mean value is called _____.
A. Standard deviation
B. Range
C. Mean
D. Median
35: The number of units of standard deviation that any individual score is above or below the mean for a variable is called z-score.
A. True
B. False
36: A measure of the number of ways data could be combined and still produce the same value for a statistic is known as ______.
A. Degree of freedom
B. Interquartile range
C. Standard deviation
D. Confidence level
37: The calculated probability of a value being true is called _____level.
A. Confidence
B. Freedom
C. Distribution
D. Skew
38: The first step in data analysis is to decide what data to use. What is a reason you might exclude some data?
A. You have not obtained consent from a participant.
B. Respondent’s responses are incomplete.
C. You consider some respondents as “outliers.”
D. All of these
39: Descriptive statistics help describe the distribution of data in a data set.
A. True
B. False
40: What is a z score?
A. The average of a set of scores
B. The number of units of standard deviation a value is above or below the mean
C. A test of similarity of scores from two different groups
D. The number of units of variance a case is above or below the mean
41: “Cross tabs” occur when a researcher gets a result that was NOT expected.
A. True
B. False
42: The numbers that describe a sample are referred to as parameters.
A. True
B. False
43: Univariate analysis is the analysis of multiple variables at the same time.
A. True
B. False
44: When researchers start their research by looking at each variable on its own, they are using the approach known as ______ analysis.
A. Univariate
B. Primary
C. Frequency first
D. Bivariate
45: Multivariate analysis refers to analyzing three or more variables at a time
A. True
B. False
46: Statistics describe the numbers obtained from quantitative research.
A. True
B. False
47: The basic goal of data reduction is to present data in summary form.
A. True
B. False
48: Anomalous data are data that you expect to find in your research results.
A. True
B. False
49: Measures of central tendency (mean, median, and mode) describe the ______ of a data distribution.
A. Average
B. Total
C. Range
D. Center
50: The range and variability of scores are described by measures of ______.
A. Dispersion
B. Central tendency
C. Frequency
D. Parameters
Data Reduction and Descriptive Statistics of Communication MCQs
