Reading

Data for assessing the contribution of non-verbal IQ to children's reading skills in dyslexic and non-dyslexic children.

Functions to fit regression models for bounded continuous and discrete responses. In case of bounded continuous responses (e.g., proportions and rates), available models are the flexible beta (Migliorati, S., Di Brisco, A. M., Ongaro, A. (2018) <doi:10.1214/17-BA1079>), the variance-inflated beta (Di Brisco, A. M., Migliorati, S., Ongaro, A. (2020) <doi:10.1177/1471082X18821213>), the beta (Ferrari, S.L.P., Cribari-Neto, F. (2004) <doi:10.1080/0266476042000214501>), and their augmented versions to handle the presence of zero/one values (Di Brisco, A. M., Migliorati, S. (2020) <doi:10.1002/sim.8406>) are implemented. In case of bounded discrete responses (e.g., bounded counts, such as the number of successes in n trials), available models are the flexible beta-binomial (Ascari, R., Migliorati, S. (2021) <doi:10.1002/sim.9005>), the beta-binomial, and the binomial are implemented. Inference is dealt with a Bayesian approach based on the Hamiltonian Monte Carlo (HMC) algorithm (Gelman, A., Carlin, J. B., Stern, H. S., Rubin, D. B. (2014) <doi:10.1201/b16018>). Besides, functions to compute residuals, posterior predictives, goodness of fit measures, convergence diagnostics, and graphical representations are provided.

Roberto Ascari

FlexReg

Regression Models for Bounded Continuous and Discrete Responses

Reading function

A <code>data.frame</code> containing 44 observations on 4 variables.<dl>
<dt><code>accuracy</code></dt>
<dd>a reading score.</dd><dt><code>accuracy.adj</code></dt>
<dd>the adjusted reading score: the observed 1's (perfect reading scores) are substituted with 0.99.</dd><dt><code>dyslexia</code></dt>
<dd>a factor indicating wheter the child is dyslexic.</dd><dt><code>iq</code></dt>
<dd>a standardized quantitative measure of the children's non verbal abilities.</dd>
</dl>

Format

Reading Skills data — Reading

A <code>data.frame</code> containing 44 observations on 4 variables.<dl>
<dt><code>accuracy</code></dt>
<dd>a reading score.</dd>

<dt><code>accuracy.adj</code></dt>
<dd>the adjusted reading score: the observed 1's (perfect reading scores) are substituted with 0.99.</dd>

<dt><code>dyslexia</code></dt>
<dd>a factor indicating wheter the child is dyslexic.</dd>

<dt><code>iq</code></dt>
<dd>a standardized quantitative measure of the children's non verbal abilities.</dd>


</dl>

Reading: Reading Skills data

Description

Arguments

Format

Details

References