- Local Norm
A standard, model, or pattern regarded as the typical composed from direct and relevant data within the AIMSweb account.
- Local Norms
Norms that have been obtained from data collected in a limited locale, such as a school system, county, or state. They may be used instead of or along with national norms to evaluate student performance. See also norms.
- LSF
Letter Sound Fluency
- M-CBM
Math- Curriculum Based Measurement
- M-CBM 2
Math- Curriculum Based Measurement 2
- M-CBM AP
Math- Curriculum Based Measurement: Application and Process
- M-CMB-2
Math- Curriculum Based Measurement 2
- M-LNF
MIDE Letter Naming Fluency
- M-LSF
MIDE Letter Sound Fluency
- M-SRF
MIDE Syllable Reading Fluency
- M-SSF
MIDE Syllable Segmentation Fluency
- M-Syll Spell
MIDE Spelling
- Maze
Maze- Comprehension
- MCAP
Math Concepts and Applications
- Mean
The arithmetic average of a set of values (scores) found by summing the scores and dividing the total by the number of scores in the set. For a group of examinees, the mean score is intended to represent the score earned by the typical examinee.
- Median
The middle score in a normal distribution or set of ranked scores. On a vertical scale, the point above which half of the data points lie, and below which the other half of the data points lie. Equivalent to the 50th percentile.
- MNM
Missing Number
- N or n
The symbol commonly used to represent the number of cases (students) in a group or sample.
- Near Target
The Progress Monitor progress summary used for an individual student assessment schedule when the student has a rate of improvement between +.5 and -.5 corrects of the required rate of improvement necessary to attain the Progress Monitor Goal.
- NIM
Number Identification
- Non-response
The failure to obtain a response on a test item.
- Norm-Referenced (Reports)
A reporting method which uses a relevant population, or average, as the basis of comparison to determine an outcome.
- Norm-referenced Test (NRT)
A standardized assessment, the results of which are interpreted in relation to the performance of a larger reference population taking the same test. Usually the reference population (or "norm group") is a national sample representing a wide and diverse cross-section of students. The purpose of norm-referenced score interpretations is usually to rank students and not to measure achievement toward specific performance criteria. See also criterion-referenced test.
- Normal Curve Equivalent (NCE)
A normalized scaled score with a mean of 50 and a standard deviation of 21.06. This score is most often used to enable test users to manipulate the test data algebraically. In contrast to percentile ranks, normal curve equivalents provide an interval scale; thus, they should be used instead of percentile ranks when interpolating or averaging scores.
- Normal Distribution
A frequency distribution for a set of variable data that in graphic form has a distinctive bell-shaped appearance symmetrical about the mean (middle). Scores are concentrated near the mean and decrease in frequency toward the tails of the curve. The shape of a normal distribution curve is defined by its mean and standard deviation. Many academic and ability measures assume a normal distribution of results.
- Norms
Mathematical conversions, score distributions, and related statistics derived from test scores of a large reference population of examinees. Norms data are regarded as representing the typical or average students performance on the associated assessment. Norms are generally presented in tabular format by grade or age and are used as a reference point against which scores earned by other groups of students taking the same test or subtest are compared.
- Norms Tables
See conversion tables.
- NWF
Nonsense Word Fluency
- Observed Score
The actual score a student earns on a test. The observed score differs statistically from the students true score by the standard error of measurement.
- OCM
Oral Counting