GMRT Score Descriptions

Score Type

Short Description

Average Percent Correct

The result of dividing the average raw score for the group by the total number of test questions, multiplying by 100, and then rounding to a whole number; class averages like these need to be interpreted as if they were the scores for the average student in the class

Extended Scale Score (ESS)

Follows a student's progress in reading over a period of several years on a single, continuous scale. Also referred to as "expanded standard scores,"growth scale," "universal scale scores" or "developmental scale scores."

Grade Equivalent (GE)

A decimal number that describes a student’s location on an achievement continuum in terms of grade and months at which the typical student received this score (for example, 2.2 is second grade and two months into that grade)

Grade Equivalent, 2006 Norms (06GE)

Alternative grade-equivalent score based on  2006 norms. Score is offered in conjunction with 2017 norms-based score.

Lexile ®

A score obtained from a reading assessment test that can help match a student with reading material of an appropriate difficulty level; it also gives an idea of how well a reader will comprehend a text.

Lexile scores can be entered on the Metametrics Inc web site to find books that match a reader's level.

Local Percentile Rank (LPR)

Percentile rank based on the district’s or school’s own data as opposed to the national-based normative information

Local Stanine (LS)

A stanine based on the district's or school’s own data as opposed to the normative information based on a national sample

National Percentile Rank (NPR)

A percentile rank indicating the status or relative rank of a student's score compared with a nationally representative sample of examinees

National Stanine (NS)

A stanine (1 - 9 rank corresponding to percentile ranges) indicating the status or relative rank of a student’s score compared with a nationally representative sample of examinees.

Normal Curve Equivalent (NCE)

Normalized standard scores that range from 1 to 99 with a mean of 50 and a standard deviation of 21.06 in the large norm group from which they were derived.

Number Attempted (No. Att)

The number of items an individual attempts to answer on a test

Percent Correct (%C)

The result of dividing the number of questions a student answered correctly on a test by the total number of test questions and then multiplying by 100

Percentile Rank (PR)

A score from 1 to 99 that indicates the percentage of students in a particular group that scored at or below the score of the student

Raw Score (RS)

The number of questions a student answered correctly on a test

Standard Score (SS)

A point on a continuous growth scale that describes a student’s location on a continuum of achievement or ability through grade 12

Stanine (S)

Normalized standard scores that range from 1 to 9 and have an average value of 5