Quiz: Introduction to Statistics, Frequency Tables, and Graphs
Score for this quiz: 45 out of 60
IncorrectQuestion 1
0/3pts
The students in a psychology class seem to think that the midterm exam was very difficult. If
they are correct, what is the most likely shape for the distribution of exam scores?
symmetrical
positively skewed
negatively skewed
normal
Question 2
3/3pts
For an experiment comparing the effectiveness of two different teaching methods for improving
the social skills of autistic children, the dependent variable would be the
experimental methodology.
autistic children.
teaching methods used to teach social skills.
Question 3
3/3pts
After recording the final grade (A, B, C, D, F) for each individual in a class of N = 26 students, the
professor would like to display the grade distribution in a frequency distribution graph. Which
kind of graph should be used?
, histogram
polygon
pie chart
Question 4
3/3pts
A recent study reported that students who just finished playing a prosocial video game were
more likely to help others than students who had just finishing playing a neutral or antisocial
game. For this study, the kind of game given to the students was the
control group.
quasi-independent variable.
dependent variable.
IncorrectQuestion 5
0/3pts
A grouped frequency distribution table lists one interval as 15-20. The width of this interval is 5
points.
True
IncorrectQuestion 6
0/3pts
If a researcher measures two individuals on an ordinal scale, it is possible to determine how
much difference exists between the two people.
Score for this quiz: 45 out of 60
IncorrectQuestion 1
0/3pts
The students in a psychology class seem to think that the midterm exam was very difficult. If
they are correct, what is the most likely shape for the distribution of exam scores?
symmetrical
positively skewed
negatively skewed
normal
Question 2
3/3pts
For an experiment comparing the effectiveness of two different teaching methods for improving
the social skills of autistic children, the dependent variable would be the
experimental methodology.
autistic children.
teaching methods used to teach social skills.
Question 3
3/3pts
After recording the final grade (A, B, C, D, F) for each individual in a class of N = 26 students, the
professor would like to display the grade distribution in a frequency distribution graph. Which
kind of graph should be used?
, histogram
polygon
pie chart
Question 4
3/3pts
A recent study reported that students who just finished playing a prosocial video game were
more likely to help others than students who had just finishing playing a neutral or antisocial
game. For this study, the kind of game given to the students was the
control group.
quasi-independent variable.
dependent variable.
IncorrectQuestion 5
0/3pts
A grouped frequency distribution table lists one interval as 15-20. The width of this interval is 5
points.
True
IncorrectQuestion 6
0/3pts
If a researcher measures two individuals on an ordinal scale, it is possible to determine how
much difference exists between the two people.
