Question 1

A curve that never changes direction is called an) ________ curve.

Accepted Answer

A)  monotonic 
B)  nonmonotonic 
C)  U-shaped 
D)  inverted 
A)  monotonic 
B)  nonmonotonic 
C)  U-shaped 
D)  inverted A

Question 2

Scattergrams represent data commonly analyzed by which statistic?

Accepted Answer

A)  t-test 
B)  Chi square 
C)  correlation coefficient 
D)  analysis of variance 
A)  t-test 
B)  Chi square 
C)  correlation coefficient 
D)  analysis of variance C

Question 3

A frequency distribution that has a longer tail on one end or the other is called a:

Accepted Answer

A)  scattergram 
B)  bar graph 
C)  skewed distribution 
D)  normal curve 
A)  scattergram 
B)  bar graph 
C)  skewed distribution 
D)  normal curve C

Question 4

The proportion of the variability in y that is accounted for by x is found by squaring the ___

Accepted Answer

A)  Correlation coefficient 
B)  Regression slope 
C)  Chi-square result 
D)  t-test value 
A)  Correlation coefficient 
B)  Regression slope 
C)  Chi-square result 
D)  t-test value

Question 5

Which one of the following distributions is probably negatively skewed?

Accepted Answer

A)  family income in dollars per year 
B)  scores on a very difficult test 
C)  scores on a moderately difficult test 
D)  scores on a very easy test 
A)  family income in dollars per year 
B)  scores on a very difficult test 
C)  scores on a moderately difficult test 
D)  scores on a very easy test

Question 6

Which one of the following terms least belongs with the others?

Accepted Answer

A)  X-axis 
B)  Y-axis 
C)  independent variable values 
D)  horizontal 
A)  X-axis 
B)  Y-axis 
C)  independent variable values 
D)  horizontal

Question 7

In a certain box-and-whisker plot, the left hand or lower) whisker is longer than the right hand or upper) whisker. Therefore, the distribution is probably

Accepted Answer

A)  bimodal 
B)  normal 
C)  positively skewed 
D)  negatively skewed 
A)  bimodal 
B)  normal 
C)  positively skewed 
D)  negatively skewed

Question 8

The coding guide lists

Accepted Answer

A)  the columns in which variables can be found 
B)  the names of all variables 
C)  acceptable values of all variables 
D)  All of these are true. 
A)  the columns in which variables can be found 
B)  the names of all variables 
C)  acceptable values of all variables 
D)  All of these are true.

Question 9

The 50th percentile is

Accepted Answer

A)  The score below which 50% of the cases fall 
B)  The score above which 50% of the cases fall 
C)  The 75th percentile minus the 25th percentile 
D)  The first quartile 
A)  The score below which 50% of the cases fall 
B)  The score above which 50% of the cases fall 
C)  The 75th percentile minus the 25th percentile 
D)  The first quartile

Question 10

The initial data sheet should contain all of the following except

Accepted Answer

A)  The date 
B)  The condition in a coded form 
C)  The participant's name 
D)  The researcher's name 
A)  The date 
B)  The condition in a coded form 
C)  The participant's name 
D)  The researcher's name

Question 11

A ___________ shows the same information as a frequency table in a graphical format.

Accepted Answer

A)  scattergram 
B)  frequency distribution 
C)  ungrouped frequency distribution 
D)  rank-order distribution 
A)  scattergram 
B)  frequency distribution 
C)  ungrouped frequency distribution 
D)  rank-order distribution

Question 12

When making a graph to show the relationship between quantitative variables, such as dependent variable as a function of an independent variable, you should use a

Accepted Answer

A)  Line graph 
B)  Scattergram 
C)  Median split 
D)  Frequency Table 
A)  Line graph 
B)  Scattergram 
C)  Median split 
D)  Frequency Table

Question 13

The most common score in a frequency distribution is called

Accepted Answer

A)  Mean 
B)  Mode 
C)  Median 
D)  Standard deviation 
A)  Mean 
B)  Mode 
C)  Median 
D)  Standard deviation

Question 14

A scientist placed some bacteria in a sterile dish of agar. He counted the number of live bacteria at regular intervals afterward. He observed that at first the bacteria grew slowly at first, and then they increased very rapidly in number. Finally, the count leveled off and then declined rapidly as the food supply was used up. A graph of this relationship would be.

Accepted Answer

A)  U-shaped 
B)  linear 
C)  monotonic 
D)  nonmonotonic 
A)  U-shaped 
B)  linear 
C)  monotonic 
D)  nonmonotonic

Question 15

The middlemost score in a distribution is called

Accepted Answer

A)  Mean 
B)  Mode 
C)  Median 
D)  Standard deviation 
A)  Mean 
B)  Mode 
C)  Median 
D)  Standard deviation

Question 16

You should connect the data points with straight lines, instead of a smooth curve, unless

Accepted Answer

A)  the data points describe a curvilinear relationship 
B)  you could write the mathematical equation for the curve 
C)  the line would be nonmonotonic 
D)  None of these. You should always connect the data points with straight lines. 
A)  the data points describe a curvilinear relationship 
B)  you could write the mathematical equation for the curve 
C)  the line would be nonmonotonic 
D)  None of these. You should always connect the data points with straight lines.

Question 17

You should decide how to handle the data from an experiment

Accepted Answer

A)  Before you see your first subject 
B)  After the data has been collected 
C)  When you have all of the data sheets 
D)  When you have finished data reduction 
A)  Before you see your first subject 
B)  After the data has been collected 
C)  When you have all of the data sheets 
D)  When you have finished data reduction

Question 18

A frequency distribution differs from other graphs in that the y-axis represents _____, rather than the value of a ________

Accepted Answer

A)  frequency, dependent variable 
B)  frequency, independent variable 
C)  dependent variable, frequency 
D)  independent variable, frequency 
A)  frequency, dependent variable 
B)  frequency, independent variable 
C)  dependent variable, frequency 
D)  independent variable, frequency

Question 19

The variance is

Accepted Answer

A)  Based on the median 
B)  Based on the mode 
C)  Based on the mean 
D)  The square root of the standard deviation 
A)  Based on the median 
B)  Based on the mode 
C)  Based on the mean 
D)  The square root of the standard deviation

Question 20

A frequency distribution shows an) _____ on the y-axis and an) _______ on the x-axis.

Accepted Answer

A)  dependent variable, independent variable 
B)  frequency, independent variable 
C)  frequency, dependent variable 
D)  independent variable, frequency 
A)  dependent variable, independent variable 
B)  frequency, independent variable 
C)  frequency, dependent variable 
D)  independent variable, frequency

A curve that never changes direction is called an) ________ curve.

Scattergrams represent data commonly analyzed by which statistic?

A frequency distribution that has a longer tail on one end or the other is called a:

The proportion of the variability in y that is accounted for by x is found by squaring the ___

Which one of the following distributions is probably negatively skewed?

Which one of the following terms least belongs with the others?

In a certain box-and-whisker plot, the left hand or lower) whisker is longer than the right hand or upper) whisker. Therefore, the distribution is probably

The coding guide lists

The 50^th percentile is

The initial data sheet should contain all of the following except

A ___________ shows the same information as a frequency table in a graphical format.

When making a graph to show the relationship between quantitative variables, such as dependent variable as a function of an independent variable, you should use a

The most common score in a frequency distribution is called

The middlemost score in a distribution is called

You should connect the data points with straight lines, instead of a smooth curve, unless

You should decide how to handle the data from an experiment

A frequency distribution differs from other graphs in that the y-axis represents _, rather than the value of a ____

The variance is

A frequency distribution shows an) _ on the y-axis and an) ___ on the x-axis.

Psychology and Science

Developing a Research Question

Ethics in Research

Writing in Psychology

Variables

Validity

Control

Nonexperimental Research, Part I: Observational,

Nonexperimental Research, Part Ii

True Experiments, Part 1 Single-Factor Designs

True Experiments, Part 2 Factorial Designs

Single Subject Experiments

Quasi Experiments

Data Exploration, Part 2: Inferential Statistics

Epilogue Biases and Limitations of Experimental Psychology

Filters

Exam 14: Data Exploration, Part 1: Graphic and Descriptive Techniques

A curve that never changes direction is called an) ________ curve.

Scattergrams represent data commonly analyzed by which statistic?

A frequency distribution that has a longer tail on one end or the other is called a:

The proportion of the variability in y that is accounted for by x is found by squaring the ___

Which one of the following distributions is probably negatively skewed?

Which one of the following terms least belongs with the others?

In a certain box-and-whisker plot, the left hand or lower) whisker is longer than the right hand or upper) whisker. Therefore, the distribution is probably

The coding guide lists

The 50th percentile is

The initial data sheet should contain all of the following except

A ___________ shows the same information as a frequency table in a graphical format.

When making a graph to show the relationship between quantitative variables, such as dependent variable as a function of an independent variable, you should use a

The most common score in a frequency distribution is called

The middlemost score in a distribution is called

You should connect the data points with straight lines, instead of a smooth curve, unless

You should decide how to handle the data from an experiment

A frequency distribution differs from other graphs in that the y-axis represents _____, rather than the value of a ________

The variance is

A frequency distribution shows an) _____ on the y-axis and an) _______ on the x-axis.

Psychology and Science

Developing a Research Question

Ethics in Research

Writing in Psychology

Variables

Validity

Control

Nonexperimental Research, Part I: Observational,

Nonexperimental Research, Part Ii

True Experiments, Part 1 Single-Factor Designs

True Experiments, Part 2 Factorial Designs

Single Subject Experiments

Quasi Experiments

Data Exploration, Part 2: Inferential Statistics

Epilogue Biases and Limitations of Experimental Psychology

Filters

The 50^th percentile is

A frequency distribution differs from other graphs in that the y-axis represents _, rather than the value of a ____

A frequency distribution shows an) _ on the y-axis and an) ___ on the x-axis.