nwea_growth: Create a data frame of all requested NWEA MAP growth norms.

In almartin82/MAP-visuals: KIPP MAP Visuals

Description

nwea_growth takes three vectors for grade-level, (starting) RIT Score, and Measurement Scale (usually from a CDF) and return a returns data.frame of typical growth calculations from the NWEA 2011 MAP Norms tables for each grade-RIT-measurement scale triplet.

Usage

nwea_growth(start.grade, start.rit, measurementscale, ...)

Arguments

start.grade	vector of student start (or pre-test) grade levels
start.rit	vector of student start (or pre-test) RIT scores
measurementscale	vector of measurement scales for the RIT scores in start.rit
...	arguments passed to dplyr:select, used to select the requested norms data. You pass indicators like T42, S22, R12 as unevaluated args (i.e. as unquoted strings). For examples, passing R42 causes the function to return a single vector of reported fall-to-spring growth norms; passing R42, S42, R22 would return a data.frame with 3 columns for reported fall-to-spring growth, the standard deviation of fall-to-spring growth and reported spring-spring-growth, respectively

Details

User can indicate which calculted nomrs (typical mean, reported mean, and standard deviation) and any growth period by using the letter+two digit NWEA 2011 Growth Norms indicator (i.e. for Reported spring to spring growth user will provide R22, for typical fall to winter growth user provides T41, and for the the standard deviation of fall to spring growth user will provide S42). Providing no list of norms indicators results in every norm and season returned. All passed vectors must be the same length

Value

a vector of length(start.grade) or data.frame with nrow(start.grade) and ncols(x)==length(...).

Examples

nwea_growth()

almartin82/MAP-visuals documentation built on May 10, 2019, 9:24 a.m.