Scale Scores

PRoPL reports on overall content area student performance using scale scores in grades K-8. Scales scores are used to report test scores and aid in score interpretation. Standardized scale scores allow for the comparison of a given score with scores of other students taking the test within the same grade and subject. The scale-score ranges for grades K-2 are listed in the table below; see the Performance Levels section for scale-score ranges for grades 3-8.

Grade

Scale-Score Range

K

100-190

1

200-300

2

200-300

PRoPL results in ADAM provide visualizations indicating where average scores or a student’s score falls within the scale score range.

Performance Levels

In grades 3-8, students are placed into performance levels (referred to as Score Groups in ADAM) based on their scale scores.

The PRoPL performance levels are:

Performance Level

Description

Level 1 (Less than 10th percentile)

a student likely needing support at current grade and on some content from the previous grade

Level 2 (10th to 40th percentile)

a student likely needing support at current grade

Level 3 (40th to 75th- percentile)

a student who is likely developing on-grade proficiency

Level 4 (75th to 95th percentile)

a student who is likely demonstrated mastery on-grade and demonstrated readiness for some next-grade content

Level 5 (95th percentile and above)

a student who likely demonstrated mastery on-grade and demonstrated ability on next-grade level

The scale-score ranges determine the performance level of students. For each grade level below, the ranges for each performance level have been provided. The lowest value in Level 1 and the highest value in Level 5 represent the scale-score range for each grade. Because these levels are based on percentiles, these cut levels may be adjusted in subsequent years based on student performance. The goal of these levels is to help identify students who need support and students who are ready for more challenging material. These levels should not be interpreted as proficiency level. 

Grade

Level 1

Level 2

Level 3

Level 4

Level 5

Math

3

435-470

475-550

555-600

605-650

655-685

4

450-495

500-560

565-605

610-670

675-735

5

485-520

525-580

585-630

635-695

700-785

6

495-540

545-600

605-650

655-720

725-805

7

520-545

550-610

615-660

665-745

750-835

8

530-570

575-630

635-690

695-775

780-865

Reading

3

435-470

475-500

505-565

570-605

610-695

4

460-480

485-550

555-635

640-675

680-760

5

495-540

545-590

595-655

660-695

700-785

6

510-570

575-620

625-675

680-720

725-800

7

525-580

585-625

630-690

695-735

740-835

8

545-605

610-645

650-720

725-775

780-865

Student Achievement Norms

 The norms in the tables below represent the average scores observed across PRoPL districts testing in the fall administration of 2023. The norms can be interpreted as follows, using third grade math as an example:

  • Average observed third-grade math score was 507.4.
  • Standard deviation was 52.8.
  • This distribution represents a normal distribution meaning that 68 percent of third-grade students scored between 454.6 to 560.2 (507.4-52.8, 507.4+ 52.8).

Fall 2023 Interim 1 Student Achievement Norms

Subject

Grade

Average Scale Score

Standard Deviation

Math

Kindergarten

144.7

11.0

1

254.3

13.4

2

251.1

12.4

3

507.4

52.8

4

558.7

53.6

5

599.0

54.7

6

601.2

48.5

7

615.6

47.4

8

626.7

44.8

Reading

Kindergarten

139.5

9.5

1

249.9

15.1

2

242.2

13.9

3

522.1

50.6

4

562.3

58.7

5

604.9

55.4

6

623.8

55.8

7

649.3

55.9

8

671.7

55.9

In the high school courses, there was no scale score for Interim 1. The table below illustrates the observed average percent correct across all students taking these tests in the fall of 2023. These values have a similar interpretation as the previous table. For example, the average percent correct in Algebra 1, of 26.4, falls within the range of 12.3 and 40.5 percent correct.

Fall 2023 Interim 1 Student Achievement Norms

Subject

Average Percent Correct

Standard Deviation

Algebra 1

26.4

14.1

Algebra 2

33.0

12.1

Geometry

22.5

9.8

Reading

52.6

18.9

The lower average percent correct in high school is expected because students are just learning this content. This is especially true for Algebra 1 and Geometry courses where the content can seem quite different than previous mathematics courses. Reading in high school is more similar to Reading in 3-8 grade, which is reflected by the observed average percent correct. These scores serve as a baseline for measuring learning and growth during the year as students have opportunity to learn the new material.

The information above is also available for download below or from the overall PRoPL Resources page.



Tiny link: https://support.assessment.pearson.com/x/CADVBw