Elementary PSA Item Specification Chart
| Elementary Probability Statistics Algebra Item Specification Chart—6/29/05 | |||||||
|---|---|---|---|---|---|---|---|
Mathematics Content |
S |
T |
A |
Type I Items |
Type II Items |
Type III Items |
Type IV Items |
1. Probability |
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a. sample space (outcomes) |
3 |
3 |
6 |
|
8. Determine equally likely outcomes (sample space) of a given experiment |
|
|
b. determine likelihood of an outcome/event |
5 |
2 |
7 |
3. Determine likelihood of an event |
|
|
|
c. determine simple/compound probabilities (theoretical) |
3 |
5 |
8 |
4. Find simple theoretical probability given a situation |
|
|
18. Find compound theoretical probability of a given situation |
d. determine simple/compound probabilities (empirical) |
3 |
4 |
7 |
|
|
12. Find simple probabilities given empirical data |
|
e. concept of randomness |
0 |
3 |
3 |
|
|
|
19. Determine if a situation is random |
f. independent and dependent events |
2 |
1 |
3 |
|
|
|
|
g. fair games and expected value |
0 |
2 |
2 |
|
|
|
|
h. misconceptions about prob. |
1 |
1 |
2 |
|
|
|
|
i. conditional probability |
2 |
0 |
2 |
|
|
|
|
j. describe and conduct experiments and simulations |
0 |
1 |
1 |
|
|
|
|
k. compare empirical & theoretical probabilities |
0 |
1 |
1 |
|
|
|
|
Mathematics Content |
S |
T |
A |
Type I Items |
Type II Items |
Type III Items |
Type IV Items |
2. Data Representation & Analysis |
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a. represent data using appropriate graphs and plots |
6 |
6 |
12 |
1. Description of a type of graph |
|
|
16. Determine appropriate graphical representations |
b. collect data |
6 |
5 |
11 |
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c. formulate questions |
6 |
2 |
8 |
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d. measures of central tendency |
5 |
6 |
11 |
2. Find the mean, median or mode of a set of data |
|
|
|
e. use measures of spread |
3 |
4 |
7 |
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f. analyze data/draw conclusions |
4 |
4 |
8 |
|
6. Draw conclusions from graphical representations 7 |
|
|
i. distributions of data (shape) |
3 |
3 |
6 |
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g. making predictions/inferences |
5 |
3 |
8 |
|
|
11. Make predictions using graphs and proportional reasoning |
|
h. sampling |
3 |
3 |
6 |
|
|
|
17. Determine if a given sampling technique generates a random sample |
j. make conjectures |
3 |
2 |
5 |
|
|
|
|
k. compare data sets |
2 |
1 |
3 |
|
|
|
|
l. understand correlation vs. causation |
2 |
1 |
3 |
|
|
|
|
m. misuses of statistics |
2 |
1 |
3 |
|
|
|
|
n. compare different representations of the same data |
1 |
0 |
1 |
|
|
|
|
Elementary Probability Statistics Algebra Item Specification Chart—4/19/05 (Continued) |
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Mathematics Content |
S |
T |
A |
Type I Items |
Type II Items |
Type III Items |
Type IV Items |
3. Algebraic Ideas |
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a. patterns (generating/generalizing) |
7 |
6 |
13 |
|
|
13. Generalize patterns using algebraic expressions |
|
b. function concepts and representation |
6 |
6 |
12 |
|
9. Determine whether or not a relation is a function |
14.Use graphical representations to describe relationships |
|
h. graph representations (reading/interpreting graphs) |
4 |
5 |
9 |
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c. variables/unknown numbers |
7 |
5 |
12 |
|
10. Identify expression of a given situation |
|
|
d. expressions |
4 |
3 |
7 |
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e. equation representation & modeling |
6 |
6 |
12 |
|
|
15. Use equations to solve problems |
20. Create a model for an algebraic equation |
i. equation solving |
4 |
5 |
9 |
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f. plotting points – Cartesian plane |
5 |
5 |
10 |
5. Find coordinates of a given point in a four-quadrant plane |
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|
|
g. slope/intercept |
1 |
3 |
4 |
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k. direct variation |
0 |
2 |
2 |
|
|
|
|
l. systems of equations |
0 |
1 |
1 |
|
|
|
|
m. bivariate and univariate data |
0 |
1 |
1 |
|
|
|
|
n. curve fitting |
0 |
1 |
1 |
|
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|
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