Question 1

The mean is a measure which constitutes:

Accepted Answer

A)  a set of observations concerning one relationship 
B)  a set of observations concerning one variable 
C)  a set of observations concerning one population of variables 
D)  the average of many combined variables 
A)  a set of observations concerning one relationship 
B)  a set of observations concerning one variable 
C)  a set of observations concerning one population of variables 
D)  the average of many combined variables B

Question 2

Within a normal distribution, as the number of measurement units become finer, the distribution curve will become:

Accepted Answer

A)  elongated 
B)  rougher 
C)  oblong 
D)  smoother 
A)  elongated 
B)  rougher 
C)  oblong 
D)  smoother D

Question 3

To represent the above proportion of male beavers as a percentage, one would:

Accepted Answer

A)  divide the proportional total by the number of female beavers 
B)  multiply the proportion by 100 
C)  square the proportional amount 
D)  derive the square root of the proportion 
A)  divide the proportional total by the number of female beavers 
B)  multiply the proportion by 100 
C)  square the proportional amount 
D)  derive the square root of the proportion B

Question 4

The standard deviation is computed by:

Accepted Answer

A)  squaring the sum of $ \frac{(x-\text { mean })^{2}}{N} $ 
B)  deriving the square root of $ \frac{(x-\text { mean })^{2}}{N-1} $ 
C)  deriving the square root of the average of $ \frac{(x-\text { mean })^{2}}{Y} $ 
D)  deriving the square root of the sum of $ \frac{(x-\text { mean })^{2}}{N-1} $ 
A)  squaring the sum of $ \frac{(x-\text { mean })^{2}}{N} $ 
B)  deriving the square root of $ \frac{(x-\text { mean })^{2}}{N-1} $ 
C)  deriving the square root of the average of $ \frac{(x-\text { mean })^{2}}{Y} $ 
D)  deriving the square root of the sum of $ \frac{(x-\text { mean })^{2}}{N-1} $

Question 5

A linear equation is expressed by which of the following:

Accepted Answer

A)  Y = a + bx 
B)  Y = a2 + bx 
C)  Y = Ax(b) 
D)  Y = $ \frac{\text{Ax} }{\text{b}} $ 
A)  Y = a + bx 
B)  Y = a2 + bx 
C)  Y = Ax(b) 
D)  Y = $ \frac{\text{Ax} }{\text{b}} $

Question 6

Ratios permit comparison across different:

Accepted Answer

A)  categories 
B)  units 
C)  medians 
D)  all of the above 
A)  categories 
B)  units 
C)  medians 
D)  all of the above

Question 7

The median represents the:

Accepted Answer

A)  mid-point of the distribution 
B)  the average score of a distribution 
C)  the highest occurring frequency of a distribution 
D)  the ordering of cases, normally from highest to lowest 
A)  mid-point of the distribution 
B)  the average score of a distribution 
C)  the highest occurring frequency of a distribution 
D)  the ordering of cases, normally from highest to lowest

Question 8

The standard deviation reveals the amount of:

Accepted Answer

A)  dispersion in a distribution 
B)  average of many different variables 
C)  measure of variation in the dependent variable 
D)  regression towards the mean in a distribution 
A)  dispersion in a distribution 
B)  average of many different variables 
C)  measure of variation in the dependent variable 
D)  regression towards the mean in a distribution

Question 9

The proportion of male beavers in the beaver population would be computed by:

Accepted Answer

A)  dividing the total number of beavers by the number of male beavers 
B)  dividing the total number of beavers by the number of female beavers 
C)  dividing the number of female beavers by the total number of female beavers 
D)  dividing the number of male beavers by the total number of beavers 
A)  dividing the total number of beavers by the number of male beavers 
B)  dividing the total number of beavers by the number of female beavers 
C)  dividing the number of female beavers by the total number of female beavers 
D)  dividing the number of male beavers by the total number of beavers

Question 10

A researcher will standardize data in order to:

Accepted Answer

A)  facilitate comparison across different units 
B)  facilitate comparison across distributions 
C)  determine the regression toward the mean 
D)  determine the regression away from the mean 
A)  facilitate comparison across different units 
B)  facilitate comparison across distributions 
C)  determine the regression toward the mean 
D)  determine the regression away from the mean

Question 11

Given that the Canadian infant mortality rate is 8 deaths per 1000, and the American rate is 10 deaths per 1000, which of the following represents the American/Canadian infant mortality ratio:

Accepted Answer

A)  8/10 
B)  1.25 
C)  .80 
D)  1/1 or 1 
A)  8/10 
B)  1.25 
C)  .80 
D)  1/1 or 1

Question 12

To compute a Z-score, which of the following formulas would one use:

Accepted Answer

A)  $ \frac{(\text{y} - \text{mean}) }{\text{sd}} $ 
B)  $ \frac{(\text{x} - \text{mean}) }{\text{N}} $ 
C)  $ \frac{(\text{x} - \text{mean}) }{\text{sd}} $ 
D)  $ \frac{(\text{x} - \text{mean}) }{\text{y}} $ 
A)  $ \frac{(\text{y} - \text{mean}) }{\text{sd}} $ 
B)  $ \frac{(\text{x} - \text{mean}) }{\text{N}} $ 
C)  $ \frac{(\text{x} - \text{mean}) }{\text{sd}} $ 
D)  $ \frac{(\text{x} - \text{mean}) }{\text{y}} $

Question 13

Which of the following is not a measure of central tendency:

Accepted Answer

A)  the mean 
B)  the mode 
C)  the z-score 
D)  the median 
A)  the mean 
B)  the mode 
C)  the z-score 
D)  the median

Question 14

Within a normal distribution, what percentage of cases will fall within one standard deviation (+ and -) of the mean:

Accepted Answer

A)  50 
B)  68 
C)  95 
D)  0 
A)  50 
B)  68 
C)  95 
D)  0

Question 15

Once computed, the standard deviation reflects:

Accepted Answer

A)  the standardized average score 
B)  the variability of a distribution 
C)  the standard range of a distribution 
D)  the amount of distribution regression 
A)  the standardized average score 
B)  the variability of a distribution 
C)  the standard range of a distribution 
D)  the amount of distribution regression

Question 16

A Z-score measures the distance of any value in a distribution:

Accepted Answer

A)  from the mode 
B)  from the mean 
C)  from the median 
D)  from the regression line 
A)  from the mode 
B)  from the mean 
C)  from the median 
D)  from the regression line

Question 17

Given 5 test scores (5, 8, 9, 3, 6), one can conclude that the:

Accepted Answer

A)  median is 5 
B)  mode is 9 
C)  mean is 5 
D)  the range is 6 
A)  median is 5 
B)  mode is 9 
C)  mean is 5 
D)  the range is 6

Question 18

The measure of variance is a:

Accepted Answer

A)  measure of central tendency 
B)  measure of dispersion 
C)  more elaborate version of the standard deviation 
D)  none of the above 
A)  measure of central tendency 
B)  measure of dispersion 
C)  more elaborate version of the standard deviation 
D)  none of the above

Question 19

The Lambda statistic measures the:

Accepted Answer

A)  proportionate adduction error 
B)  proportionate reduction rate 
C)  proportionate reduction in error 
D)  the regression toward the mean 
A)  proportionate adduction error 
B)  proportionate reduction rate 
C)  proportionate reduction in error 
D)  the regression toward the mean

Question 20

The mean is calculated by:

Accepted Answer

A)  squaring the standard deviation 
B)  determining the mid-point of a distribution 
C)  determining the category with the highest frequency 
D)  summing the values and dividing by the number of cases 
A)  squaring the standard deviation 
B)  determining the mid-point of a distribution 
C)  determining the category with the highest frequency 
D)  summing the values and dividing by the number of cases

The mean is a measure which constitutes:

Within a normal distribution, as the number of measurement units become finer, the distribution curve will become:

To represent the above proportion of male beavers as a percentage, one would:

The standard deviation is computed by:

A linear equation is expressed by which of the following:

Ratios permit comparison across different:

The median represents the:

The standard deviation reveals the amount of:

The proportion of male beavers in the beaver population would be computed by:

A researcher will standardize data in order to:

Given that the Canadian infant mortality rate is 8 deaths per 1000, and the American rate is 10 deaths per 1000, which of the following represents the American/Canadian infant mortality ratio:

To compute a Z-score, which of the following formulas would one use:

Which of the following is not a measure of central tendency:

Within a normal distribution, what percentage of cases will fall within one standard deviation (+ and -) of the mean:

Once computed, the standard deviation reflects:

A Z-score measures the distance of any value in a distribution:

Given 5 test scores (5, 8, 9, 3, 6), one can conclude that the:

The measure of variance is a:

The Lambda statistic measures the:

The mean is calculated by:

Approaches to Methods

Explaining

Experiments, Quasi-Experiments, and Field Observations

Survey Designs

Nonreactive and Comparative Research

Qualitative Research Methods

Critical Approaches to Research: Action and Feminist Research

Three Tests of Significance

Bias

Ethical Issues

Getting the Project Started

Measurement

Questionnaire Development

Sampling and Sample Size

Starting the Data Analysis

Basic Multivarate Techniques

The Research Report

Using Spss for Windows

Filters

Exam 8: A Statistics Primer

The mean is a measure which constitutes:

Within a normal distribution, as the number of measurement units become finer, the distribution curve will become:

To represent the above proportion of male beavers as a percentage, one would:

The standard deviation is computed by:

A linear equation is expressed by which of the following:

Ratios permit comparison across different:

The median represents the:

The standard deviation reveals the amount of:

The proportion of male beavers in the beaver population would be computed by:

A researcher will standardize data in order to:

Given that the Canadian infant mortality rate is 8 deaths per 1000, and the American rate is 10 deaths per 1000, which of the following represents the American/Canadian infant mortality ratio:

To compute a Z-score, which of the following formulas would one use:

Which of the following is not a measure of central tendency:

Within a normal distribution, what percentage of cases will fall within one standard deviation (+ and -) of the mean:

Once computed, the standard deviation reflects:

A Z-score measures the distance of any value in a distribution:

Given 5 test scores (5, 8, 9, 3, 6), one can conclude that the:

The measure of variance is a:

The Lambda statistic measures the:

The mean is calculated by:

Approaches to Methods

Explaining

Experiments, Quasi-Experiments, and Field Observations

Survey Designs

Nonreactive and Comparative Research

Qualitative Research Methods

Critical Approaches to Research: Action and Feminist Research

Three Tests of Significance

Bias

Ethical Issues

Getting the Project Started

Measurement

Questionnaire Development

Sampling and Sample Size

Starting the Data Analysis

Basic Multivarate Techniques

The Research Report

Using Spss for Windows

Filters