Package documentationOverview of functions in the dscore package. 


dscore: Dscore for Child Development 

Identify whether your milestones are supportedFunctions to identify supported milestones and instruments. 

Extract item names 

Get a subset of items from the itemtable 

Get labels for items 

Decomposes item names into their four components 

Get your data into shapeFunctions for mapping and recoding your data in a format that the dscore() function can understand. 

Rename items from gcdg into gsed lexicon 

Sorts item names according to userspecified priority 

Calculate Dscore and DAZThe main workhorse implements the algorithms to calculate the Dscore and the DAZ from 1) the child’s milestone scores, 2) the itembank, 3) the prior and 4) the reference. 

Dscore estimation 

Calculate posterior of ability 

Obtain difficulty parameters from item bank 

Working with referencesSpecification of the imputation models can be made more convenient using the following set of helpers. 

Dscore standard deviation score: DAZ 

Get Dscore reference 

Get age equivalents of items that have a difficulty estimate 

Internal functionsWhile documented, these internal functions should not be called directly. 

Median of Dutch references 

Median of GCDG references 

Median of phase1 references 

Calculate posterior for one item given score, difficulty and prior 

Normalize distribution 

DatasetsBuiltin datasets 

Global Scale for Early Development  itemtable 

Builtin itembank 

Ageconditional reference distribution of Dscore 

Outcomes on developmental milestones for pretermborn children 

Sample of 10 children from the GSED Phase 1 study 

Sample of 10 children from gpa (SF) 

Sample of 10 children from gto (LF) 

Sample of 10 children from GSED HF 