PRAXIS Template

1
PRAXIS Template

• To use this template, Duplicate the slides as
  needed and customize them to fit your problem.
• There are 4 backgrounds (one for each tab).
• These templates could be used by the content
  creation teams to communicate their vision of
  the PRAXIS Learning Object under construction.

2
Addition information

• Definition of percentile
• A value on a scale that indicates the percent of
  a distribution that is equal to it or below it.
  For example, a score at the 95th percentile is
  equal to or better than 95 percent of the
  scores. (from DPIs glossary at
  http//dpi.wi.gov/standards/mathglos.html)
• DPI Math Standards
• By the end of Grade 12, all students should
• E.12.1. Work with data in the context of
  real-world situations...
• E.12.2. Organize and display data from
  statistical investigations using percentiles,
  quartiles, deciles.
• By the end of Grade 8, all students should
• E.8.1 Work with data in the context of real-world
  situations
• Use the results of data analysis to make
  predictions, develop convincing arguments, and
  draw conclusions.
• Additional Needs Assessment
• Teachers need to understand percentiles in order
  to interpret students standardized test score
  results correctly. In particular, a score in the
  70th percentile is not average, but is in fact
  better than 70 percent of all students who took
  the test.

3
Percentile Rank
On an achievement test taken by a large group of
people, Bill scored at the 70th percentile with
respect to the test-score distribution for the
group. This information implies that

• PRAXIS - WI
• Jon Hasenbank
• Anusack Banuvong
• Rachel Klinner
• Traci Leis
• Katie Schank
• Leader for this problem.

A. Bill got 70 of the test correct. B. 70 scores
were lower than Bills score. C. 30 of the
scores were higher than Bills score. D. Bills
score was approximately one standard deviation
above the mean test score for the group.
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Question Page
Feedback for D Incorrect. A percentile ranking
can sometimes be linked to standard deviations,
but we would need more information about the
scores distribution.
Feedback for C Correct! Being in the 70th
percentile means Bill did as well as about 70 of
his peers, so 30 outscored him.
On an achievement test taken by a large group of
people, Bill scored at the 70th percentile with
respect to the test-score distribution for the
group. This information implies that
A. Bill got 70 of the test correct. B. 70 scores
were lower than Bills score. C. 30 of the
scores were higher than Bills score. D. Bills
score was approximately one standard deviation
above the mean test score for the group.
The box below represents a set of test scores
from a another class. Move the slider to discover
what the percentile score represents.
Lowest scorein the class
Highest score in the class
Feedback for A Incorrect. Bills percentile
ranking refers to how he did relative to all
others who took the test.
Feedback for B Incorrect. It is true that
approximately 70 percent of scores were below
Bill, but not necessarily 70 scores.
Programmer The slider should range from 1 to 100
(for 1st percentile to 100th percentile.)
Initially, it should be placed at the 19th
percentile. As it slides, the percentages should
change in unit increments to show the percent of
the rectangle that lies below / above the arrows
position. The textbox in the lower right should
also change to reflect the current percentile.
The slider currently in the 19th percentile.
A percentile ranking divides the scores into a
low group ( below) and a high group ( above).
Percentile Rank
5
Jons Tutorial (1)
To answer this question, we need to understand
how to interpret a persons percentile rank.
On an achievement test taken by a large group of
people, Bill scored at the 70th percentile with
respect to the test-score distribution for the
group. This information implies that
A. Bill got 70 of the test correct. B. 70 scores
were lower than Bills score. C. 30 of the
scores were higher than Bills score. D. Bills
score was approximately one standard deviation
above the mean test score for the group.
Shortly after the animation is complete,
automatically transition to the next slide, which
simultaneously highlights the two phrases that
refer to percentile rank.
Percentile Rank
6
Jons Tutorial (2)
To answer this question, we need to understand
how to interpret a persons percentile rank.
On an achievement test taken by a large group of
people, Bill scored at the 70th percentile with
respect to the test-score distribution for the
group. This information implies that
A. Bill got 70 of the test correct. B. 70 scores
were lower than Bills score. C. 30 of the
scores were higher than Bills score. D. Bills
score was approximately one standard deviation
above the mean test score for the group.
Shortly after this slide appears, transition to
the next slide and highlight the two phrases that
refer to percentile rank.
Percentile Rank
7
Jons Tutorial (3)
To answer this question, we need to understand
how to interpret a persons percentile rank.
On an achievement test taken by a large group of
people, Bill scored at the 70th percentile with
respect to the test-score distribution for the
group. This information implies that
Definition A persons percentile rank is the
percentage of all test-takers that the person
either tied or outscored.
A. Bill got 70 of the test correct. B. 70 scores
were lower than Bills score. C. 30 of the
scores were higher than Bills score. D. Bills
score was approximately one standard deviation
above the mean test score for the group.
.
Percentile Rank
8
Jons Tutorial (4)
On an achievement test taken by a large group of
people, Bill scored at the 70th percentile with
respect to the test-score distribution for the
group. This information implies that
Definition A persons percentile rank is the
percentage of all test-takers that the person
either tied or outscored.
A. Bill got 70 of the test correct. B. 70 scores
were lower than Bills score. C. 30 of the
scores were higher than Bills score. D. Bills
score was approximately one standard deviation
above the mean test score for the group.
When this slide appears, the newly-boxed
Definition should fly from its current position
to the box at the top of the screen. Immediately
progress to the next slide.
Percentile Rank
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Jons Tutorial (5)
Definition A persons percentile rank is the
percentage of all test-takers that the person
either tied or outscored.
On an achievement test taken by a large group of
people, Bill scored at the 70th percentile with
respect to the test-score distribution for the
group. This information implies that
In our example, we are told that Bill scored at
the 70th percentile.
According to the definition, that means Bill
either tied or outscored 70 of the test-takers.
A. Bill got 70 of the test correct. B. 70 scores
were lower than Bills score. C. 30 of the
scores were higher than Bills score. D. Bills
score was approximately one standard deviation
above the mean test score for the group.
Lowest score
Highest score
Display the paragraphs in turn.
Percentile Rank
10
Jons Tutorial (6)
Definition A persons percentile rank is the
percentage of all test-takers that the person
either tied or outscored.
On an achievement test taken by a large group of
people, Bill scored at the 70th percentile with
respect to the test-score distribution for the
group. This information implies that
Thats actually enough to answer the question.
The answer must be C.
A. Bill got 70 of the test correct. B. 70 scores
were lower than Bills score. C. 30 of the
scores were higher than Bills score. D. Bills
score was approximately one standard deviation
above the mean test score for the group.
Lowest score
Highest score
.
Percentile Rank
11
Jons Tutorial (7)
Definition A persons percentile rank is the
percentage of all test-takers that the person
either tied or outscored.
On an achievement test taken by a large group of
people, Bill scored at the 70th percentile with
respect to the test-score distribution for the
group. This information implies that
Thats actually enough to answer the question.
The answer must be C.
Notice that A refers to how many questions Bill
got right percentile rank doesnt tell us
anything about that!
A. Bill got 70 of the test correct. B. 70 scores
were lower than Bills score. C. 30 of the
scores were higher than Bills score. D. Bills
score was approximately one standard deviation
above the mean test score for the group.
Lowest score
Highest score
.
Percentile Rank
12
Jons Tutorial (8)
Definition A persons percentile rank is the
percentage of all test-takers that the person
either tied or outscored.
On an achievement test taken by a large group of
people, Bill scored at the 70th percentile with
respect to the test-score distribution for the
group. This information implies that
Thats actually enough to answer the question.
The answer must be C.
Answer B refers to the number (not percent) of
scores lower than Bills. Thats why it isnt
correct.
A. Bill got 70 of the test correct. B. 70 scores
were lower than Bills score. C. 30 of the
scores were higher than Bills score. D. Bills
score was approximately one standard deviation
above the mean test score for the group.
Lowest score
Highest score
.
Percentile Rank
13
Jons Tutorial (9)
Definition A persons percentile rank is the
percentage of all test-takers that the person
either tied or outscored.
On an achievement test taken by a large group of
people, Bill scored at the 70th percentile with
respect to the test-score distribution for the
group. This information implies that
Thats actually enough to answer the question.
The answer must be C.
And D is incorrect because wed need to know more
about the distribution to comment on the standard
deviation.
A. Bill got 70 of the test correct. B. 70 scores
were lower than Bills score. C. 30 of the
scores were higher than Bills score. D. Bills
score was approximately one standard deviation
above the mean test score for the group.
Lowest score
Highest score
.
Percentile Rank
14
Chalk Talk
You can use the RecordNarration Feature to
record a draft Audio portion. First, create a
script for what you want to say in a word
program. Then create any figures you will need
for your chalk talk. Finally, record your chalk
talk.
On an achievement test taken by a large group of
people, Bill scored at the 70th percentile with
respect to the test-score distribution for the
group. This information implies that
A. Bill got 70 of the test correct. B. 70 scores
were lower than Bills score. C. 30 of the
scores were higher than Bills score. D. Bills
score was approximately one standard deviation
above the mean test score for the group.
Percentile Rank
15
A
On an achievement test taken by a large group of
people, Alissa scored at the 65th percentile with
respect to the test-score distribution for the
group. This information implies that A. Alissa
scored better than 35 of her peers. B. Alissa
scored worse than 35 of her peers. C. Alissas
score is about 1 standard deviation above the
mean. D. Alissas score was below average for the
test.
A. Incorrect. Percentile ranking gives the
percent of scores that were worse than the given
score. B. Correct! C. Incorrect. A percentile
ranking can sometimes be linked to standard
deviations, but we would need more information
about the scores distribution. D. Incorrect.
An average score would probably be closer to the
50th percentile (which is the median, or middle,
score). That is well below Alissas percentile
rank.
Percentile Rank
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B
On an achievement test taken by a large group of
people, Ben was outscored by 40 of the other
test-takers. This information implies
that A. Bens score is below the median score
for the group. B. Bens score is in the 40th
percentile. C. Bens score is in the 60th
percentile. D. Ben scored better than 40 of the
other test-takers.
A. Incorrect. The median score is the middle
score, so it would be outscored by 50 of the
group, not 40. B. Incorrect. If Bens score was
in the 40th percentile, he would have done better
than 40 of his peers. The question says the
opposite of that. C. Correct! D. Incorrect. The
question says 40 of test-takers beat Ben, not
the other way around.
Percentile Rank
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C
On an achievement test taken by a large group of
people, Cassie correctly answered 30 of the 40
questions on the test. This information implies
that A. Cassies score is in the 75th
percentile. B. Cassies score is in the 25th
percentile. C. Cassies score is in the 30th
percentile. D. Cassies percentile score cannot
be determined from the given information.
A. Incorrect. Cassie got 75 of the questions
right, but that does not mean she scored in the
75th percentile. B. Incorrect. Cassie got 25 of
the questions wrong, but that does not mean she
scored in the 25th percentile. C. Incorrect.
Remember that Cassies percentile ranking
describes the percentage of test-takers that
scored worse than Cassie. D. Correct! Unless we
know more about how Cassies score compared to
everyone elses scores, we cannot determine her
percentile ranking.
Percentile Rank
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D
On an achievement test taken by 2000 people, 400
people had scores higher than Dani. This
information implies that A. Danis score is in
the 20th percentile. B. Danis score is in the
80th percentile. C. Danis score is in the 40th
percentile. D. Danis score is in the 60th
percentile.
A. Incorrect. On the other hand, 20 of the
test-takers did outscore Dani B. Correct! Dani
scored as well or better than 1600 / 2000 people,
or 16/20. That is 4/5 of the test-takers, or
80. C. Incorrect. Try looking at the ratio of
the number of people Dani outscored to the total
number of people who took the test. D. Incorrect.
Try looking at the ratio of the number of people
Dani outscored to the total number of people who
took the test.
Percentile Rank
19
E
On an achievement test taken by a large group of
people, Erin came to see you to discuss her sons
test results. The report showed her son scored at
the 53rd percentile. This information implies
that A. Erins son correctly answered only
about 53 of the test questions. B. Erins son
failed the test. C. Erins son outscored more
than half of the test-takers. D. Both B and C are
correct.
A. Incorrect. Remember, a percentile ranking
compares a single score to the rest of the
scores. It is not the same as percent
correct. B. Incorrect. Usually 53 correct is a
failing grade, but percentile ranking is not the
same as percent correct. C. Correct! A student
who scores in the 53rd percentile has done as
well or better than 53 of the test-takers. D. Inc
orrect. Remember that percentile ranking is not
the same as percent correct.
Percentile Rank
20
F
On an achievement test taken by a 1200 people,
Francine scored higher than all but 200 people.
This information implies that A. Francines
score is in the 17th percentile. B. Francines
score is in the 20th percentile. C. Francines
score is in the 80th percentile. D. Francines
score is in the 83rd percentile.
A. Incorrect. Francine outscored most of the
other test takers, so her percentile ranking
should be higher than this. B. Incorrect.
Francine outscored most of the other test takers,
so her percentile ranking should be higher than
this. C. Incorrect. Consider the ratio of (people
Francine outscored) to the (total number of
people). D. Correct! Francine scored higher than
1000 people, and 1000/1200 10/12 5/6, or
about 83.
Percentile Rank
21
G
To qualify for a certain scholarship, applicants
must score at or above the 90th percentile on a
60-question test that is taken by a large group
of people. This information implies
that A. Approximately 10 of test-takers will
fail to qualify for the scholarship
B. Applicants must correctly answer at least 54
questions to qualify. C. An applicant who only
answers 45 questions correctly has failed to
qualify. D. Applicants must do better than 90 of
the other test-takers in order to qualify.
A. Incorrect. Scoring at or above the 90th
percentile is a pretty tough requirement! B. Incor
rect. Remember that the percentile rank gives the
percent of scores at or below a given score it
is not the same as percent answered
correctly. C. Incorrect. If the test is
extremely difficult, even the top score (which
would be in the 100th percentile) could be quite
low! D. Correct!
Percentile Rank
22
H
To qualify for a certain scholarship, applicants
must correctly answer 18 out of 20 questions on a
test that is taken by a large group of people.
This information implies that A. Applicants
must score at least 90 on the test to
qualify. B. Approximately 10 of test-takers will
fail to qualify for the scholarship
C. Applicants must score at or above the 90th
percentile in order to qualify. D. Both B and C
are correct.
A. Correct! B. Incorrect. In fact, it is
possible that everyone will meet the requirement
in this case! C. Incorrect. It depends on how
difficult the test is. Answering 90 of the
questions does not necessarily correspond to the
90th percentile. D. Incorrect. The requirement is
not based on relative performance compared to
other test-takers, only on answering 90 of the
questions correctly.
Percentile Rank
23
I
On an achievement test taken by a large group of
people, Iris was outscored by 60 of the other
test takers. This information implies
that A. Iriss score is in the 60th
percentile. B. Iriss score is below the median
score for the group. C. Iris answered 40 of the
questions correctly. D. Iris answered 60 of the
questions correctly.
A. Incorrect. If Iriss score was in the 60th
percentile, she would have done better than 60
of her peers. The question says the opposite of
that! B. Correct! Since 60 outscored Iris, she
must be below the median (or middle) score for
the group. C. Incorrect. Iris was outscored by
60 of test-takers, but that does not mean she
missed 60 of the questions. D. Incorrect. Iris
was outscored by 60 of test-takers, but that
does not mean she answered 60 of the questions
correctly.
Percentile Rank
24
J
On an achievement test taken by a large group of
people, Jeff scored in the 80th percentile with
respect to the test-score distribution for the
group. This information implies that A. 20
scores were higher than Jeffs score. B. Jeff got
20 of the test incorrect. C. 20 of the scores
were higher than Jeffs score. D. Jeff scored 80
on the test.
A. Incorrect. The number of scores higher than
Jeffs might not be the same as the percent of
scores higher than Jeffs. B. Incorrect. The
percentile ranking refers to how he did relative
to all others who took the test. C. Correct! D. In
correct. The percentile ranking refers to how he
did relative to all others who took the test.
Percentile Rank