Exam

Exam scores of 4,059 students from 65 schools in Inner London, as in
<code>Exam</code>.

Functions that provide statistical methods for interval-censored (grouped) data. The package supports the estimation of linear and linear mixed regression models with interval-censored dependent variables. Parameter estimates are obtained by a stochastic expectation maximization algorithm. Furthermore, the package enables the direct (without covariates) estimation of statistical indicators from interval-censored data via an iterative kernel density algorithm. Survey and Organisation for Economic Co-operation and Development (OECD) weights can be included into the direct estimation (see, Walter, P. (2019) <doi:10.17169/refubium-1621>).

Paul Walter

smicd

Statistical Methods for Interval-Censored Data

Exam function

A data frame with 4059 observations with the following 10 variables:<dl>
<dt>school</dt>
<dd>School ID - a factor.</dd><dt>examsc</dt>
<dd>Exam score.</dd><dt>schgend</dt>
<dd>School gender - a factor. Levels are mixed, boys, and girls.</dd><dt>schavg</dt>
<dd>School average of intake score.</dd><dt>vr</dt>
<dd>Student level Verbal Reasoning (VR) score band at intake - a factor.
Levels are bottom 25%, mid 50%, and top 25%</dd><dt>intake</dt>
<dd>Band of student's intake score - a factor. Levels are bottom
25%, mid 50% and top 25%</dd><dt>standLRT</dt>
<dd>Standardised LR test score.</dd><dt>sex</dt>
<dd>Sex of the student - levels are F and M.</dd><dt>type</dt>
<dd>School type - levels are Mxd and Sngl.</dd><dt>student</dt>
<dd>Student id (within school) - a factor</dd>
</dl>

Format

Exam scores from inner London — Exam

A data frame with 4059 observations with the following 10 variables:<dl>
<dt>school</dt>
<dd>School ID - a factor.</dd>

<dt>examsc</dt>
<dd>Exam score.</dd>

<dt>schgend</dt>
<dd>School gender - a factor. Levels are mixed, boys, and girls.</dd>

<dt>schavg</dt>
<dd>School average of intake score.</dd>

<dt>vr</dt>
<dd>Student level Verbal Reasoning (VR) score band at intake - a factor.
Levels are bottom 25%, mid 50%, and top 25%</dd>

<dt>intake</dt>
<dd>Band of student's intake score - a factor. Levels are bottom
25%, mid 50% and top 25%</dd>

<dt>standLRT</dt>
<dd>Standardised LR test score.</dd>

<dt>sex</dt>
<dd>Sex of the student - levels are F and M.</dd>

<dt>type</dt>
<dd>School type - levels are Mxd and Sngl.</dd>

<dt>student</dt>
<dd>Student id (within school) - a factor</dd>


</dl>

Exam: Exam scores from inner London

Description

Arguments

Format

References