https://github.com/tmsalab/fourpno

Estimate Barton & Lord's (1981) <doi:10.1002/j.2333-8504.1981.tb01255.x> four parameter IRT model with lower and upper asymptotes using Bayesian formulation described by Culpepper (2016) <doi:10.1007/s11336-015-9477-6>.
https://github.com/tmsalab/fourpno

armadillo cognitive-diagnostic-models gibbs-sampler item-response-theory r rcpp rcpparmadillo rstats

Last synced: 24 days ago
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Estimate Barton & Lord's (1981) <doi:10.1002/j.2333-8504.1981.tb01255.x> four parameter IRT model with lower and upper asymptotes using Bayesian formulation described by Culpepper (2016) <doi:10.1007/s11336-015-9477-6>.

• Host: GitHub
• URL: https://github.com/tmsalab/fourpno
• Owner: tmsalab
• Created: 2017-04-26T02:29:50.000Z (over 7 years ago)
• Default Branch: master
• Last Pushed: 2019-11-05T22:58:32.000Z (about 5 years ago)
• Last Synced: 2024-11-29T15:18:51.875Z (24 days ago)
• Topics: armadillo, cognitive-diagnostic-models, gibbs-sampler, item-response-theory, r, rcpp, rcpparmadillo, rstats
• Language: C++
• Homepage: http://tmsalab.github.io/fourPNO
• Size: 92.8 KB
• Stars: 1
• Watchers: 3
• Forks: 1
• Open Issues: 0
• Metadata Files:
  • Readme: README.Rmd

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README

        
---

output: github_document

---

```{r, echo = FALSE}

knitr::opts_chunk$set(

  collapse = TRUE,

  comment = "#>",

  fig.path = "README-"

)

```

# fourPNO

[![Build Status](https://travis-ci.org/tmsalab/fourPNO.svg)](https://travis-ci.org/tmsalab/fourPNO)

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Estimate Barton & Lord's (1981)  

four parameter IRT model with lower and upper asymptotes using Bayesian 

formulation described by Culpepper (2016) .

## Installation

You can install `fourPNO` from CRAN using:

```{r cran-installation, eval = FALSE}

install.packages("fourPNO")

```

Or, you can be on the cutting-edge development version on GitHub using:

```{r gh-installation, eval = FALSE}

if(!requireNamespace("devtools")) install.packages("devtools")

devtools::install_github("tmsalab/fourPNO")

```

## Usage

To use the `fourPNO` package, load it into _R_ using:

```{r example, message = FALSE}

library("fourPNO")

```

Inside the package, the estimation routines can be viewed as:

- `Gibbs_2PNO()`

- `Gibbs_4PNO()`

## Author

Steven Andrew Culpepper

## Citing the `fourPNO` package

To ensure future development of the package, please cite `fourPNO`

package if used during an analysis or simulation study. Citation information

for the package may be acquired by using in *R*:

```{r citation-info, eval = FALSE}

citation("fourPNO")

```

## License

GPL (>= 2)