OpenRepGrid and Friends
•
1 like•1,420 views
This document outlines the OpenRepGrid project which aims to create open source software for analyzing repertory grid data using the R programming language. It discusses the motivation for the project due to limitations of existing proprietary software. The OpenRepGrid R package provides functionality for importing, analyzing, and visualizing repertory grid data. The document demonstrates several analysis methods available in OpenRepGrid and discusses plans to develop graphical user interfaces and community participation to further expand the software's capabilities.
Recommended
Recommended
More Related Content
Similar to OpenRepGrid and Friends
Similar to OpenRepGrid and Friends (20)
More from Mark Heckmann
More from Mark Heckmann (10)
Recently uploaded
Recently uploaded (20)
OpenRepGrid and Friends
- 1. OpenRepGrid & Friends Tools for the Analysis of Repertory Grid Data ICPCP Conference, Sydney, July 21, 2013 Mark Heckmann University of Bremen, Germany
- 2. PART I • Motivation for OpenRepGrid • Why R? • The OpenRepGrid project PART II • Getting started with R • Getting started with OpenRepGrid • Creating analysis reports • How to add new features PART III • Graphical User Interfaces for OpenRepGrid • Preview: A grid administration software
- 3. Part I
- 6. General requirements for (grid) software • Durability • Availability • Functionality • Compatibility • Documentation • Openness • Extensibility • Usability
- 8. No grid software offers all methods of analysis that have been devised in the literature Source: http://callcentersindia.files.wordpress.com/2010/06/selection-process.png
- 9. THE STRUCTURAL QUADRANTS METHOD: A NEW APPROACH TO THE ASSESSMENT OF CONSTRUCT SYSTEM COMPLEXITY VIA THE REPERTORY GRID JOSEP GALLIFA and LUIS BOTELLA Department of Psychology, Ramon Llull University, Barcelona, Spain This article presents a new mathematical method (the Structural Quadrants Method) for the assessment of construct system complexity via the repertory grid. The Struc- tural Quadrants Method (SQM) is presented step by step, and its sensitivity to grid structure is illustrated by applying it to five case studies. A validational study demonstrating the discriminative power of the SQM and comparing it to tradi- tional measures is included. Results indicate that the SQM discriminates between a group of 11 experts and one of 11 novices in terms of grid complexity as expected (i.e., detecting high degrees of differentiation and integration in the experts’ grids and low degrees of differentiation and integration in the novices’ grids). The dis- criminative power of the SQM is unparalleled by the traditional measures of grid structure compared in this article. The article ends with a section on the distinctive advantages of the SQM and some suggestions for future research. Journal of Constructivist Psychology, 13:1–26, 2000 Copyright ã 2000 Taylor & Francis 1072-0537/00 $12.00 + .00
- 10. Not extensible by user No framework to support experimental types of analysis
- 11. The output of most programs does not easily lend itself to subsequent computation Source: http://www.jacksofscience.com/wp-content/uploads/2008/05/computing_occurs.jpg
- 12. Development by a single person or a small group of researchers, each with their own special competencies in a certain field of research and often limited time resources. (Fromm, 2009)
- 13. Source: http://www.kirchen-und-kapellen.de/images/content/Community.jpg No joint community effort to improve a program: Development and documentation is delegated to the software providers
- 14. Source: h1p://evolu+on.berkeley.edu/evosite/misconceps/images/misconcep+ons_beavers2.gif Discontinued development once its initiators have moved on to other fields or retired “the programs that are currently available have a short shelf-life in that they are unlikely to be updated once their creators have retired” (Fransella, Bannister & Bell, 2004, p. 38)
- 15. What to do? • Software design that enables users to contribute to its development • Set up infra- and communication structures to foster participation in a joint development Go Open Source!
- 16. Why ?
- 17. • Because I am familiar with it J • is the lingua franca in the field of statistics • runs on all major platforms • is managable by non-programmers • becomes increasingly popular within the social sciences
- 19. • provides an underlying framework for further computations • provides a wealth of functionality • extensible (GUI, 3D etc.) Suitable for Open Source grid software development
- 20. OpenRepGrid project OpenRepGrid R package OpenRepGrid Wiki
- 21. User entry points • Give feedback: bug reports, suggestions ... • Supply method descriptions to trigger development • Provide R code snippets • Generate tutorials and case studies • Join the R package development team
- 22. Development process Adding graphical user interface(s) Create wide range of analysis methods Documentation in Wiki 2011 2013 Phase 2Phase 1 Researchers with basic R skills Anyone
- 23. Part II
- 26. 30
- 27. 31 Using R as a calculator 4 + 4 ! ! ! ! !# Addition! 4 - 1 ! ! ! !# Subtraction! ! 2 + 2 * 3! ! !# standard calculating rules ! (2-1) * (2+2) ! !# standard use of brackets!
- 28. 32 Variable assignments a <- 2 + 2 ! ! !# assignment operator! a ! ! ! ! !# variable value is 4! ! a <- 100 ! ! # change variable value! a * 10 ! ! ! ! !# use the variable !
- 29. 33 Objects Objects (Variables) names may contain numbers, letters, underscores or dots. The name must not contain a function (+, - *, / etc.). object1 <- 10! object.1 <- “hallo”!
- 30. 34 Functions Function (lat. performance, execution) Every function uses round brackets rnorm(4)! ! ! ! !
- 31. 36 “Nurse, get on the internet, go to SURGERY.COM, scroll down and click on the ,‘Are you totally lost?’ icon.“
- 32. 37 Objects Opening help files ?rnorm! ! Commands inside the function’s round brackets are called arguments. A function may take zero to many arguments. rnorm(4, mean=10)! !
- 33. Generate 10 random numbers with mean 100 and a standard deviation of 15. You have 2 minutes Your turn
- 36. Web Repository with 3.500+ packages OpenRepGrid Load package when starting R
- 39. 44 OpenRepGrid is shipped with several sample grid data sets from the literature. Type in the name of a data set and press enter boeker! ! ! 8 - martin ! george - 7 | 9 - elizabeth ! karl - 6 | | | 10 - therapist ! kurt - 5 | | | | | 11 - irene ! father - 4 | | | | | | | 12 - childhood self ! mother - 3 | | | | | | | | | 13 - self before illness ! ideal self - 2 | | | | | | | | | | | 14 - self with delusion! self - 1 | | | | | | | | | | | | | 15 - self as dreamer ! | | | | | | | | | | | | | | | ! balanced (1) 1 4 2 2 3 5 2 5 4 2 6 2 2 3 3 (1) get along wit! isolated (2) 3 6 3 5 5 4 5 4 5 4 4 4 2 2 3 (2) sociable ! ely integrated (3) 2 2 2 3 5 3 2 3 2 3 3 4 4 5 3 (3) excluded ! discursive (4) 4 1 3 1 2 4 2 3 3 2 3 3 3 5 4 (4) passive ! open minded (5) 2 1 2 1 2 4 4 2 4 2 6 3 2 2 3 (5) indifferent ! dreamy (6) 4 5 3 5 4 5 4 5 4 4 6 3 3 3 2 (6) dispassionate! cally oriented (7) 2 1 3 2 3 3 3 2 2 3 2 3 3 3 3 (7) depressed ! playful (8) 4 5 4 3 4 3 2 3 4 4 5 3 2 4 3 (8) serious ! ocially minded (9) 2 1 3 2 4 5 4 1 3 2 6 3 3 3 3 (9) selfish ! quarrelsome (10) 5 5 5 5 5 2 5 2 4 4 1 6 5 5 5 (10) peaceful ! artistic (11) 5 1 2 4 3 5 3 2 4 3 3 4 4 4 4 (11) technical ! scientific (12) 2 1 5 3 4 4 5 3 4 1 6 4 2 3 3 (12) emotional !
- 40. For easier handling we save the boeker dataset in the object x! x <- boeker! ! ! !
- 41. Importing a dataset from a .txt file! ! ! x <- importTxt() # interactive dialog! ! # sample file path on windows! x <- importTxt(“C:mark/grid_1.txt") ! ! # sample file path on MacOs / Unix! x <- importTxt(“~/mark/grid_1.txt") ! ! ! !
- 42. Subsetting a grid using the squared brackets operator, e.g. extracting rows 1 to 5 x[1:5, ]! ! ! ! 8 - martin ! george - 7 | 9 - elizabeth ! karl - 6 | | | 10 - therapist ! kurt - 5 | | | | | 11 - irene ! father - 4 | | | | | | | 12 - childhood self ! mother - 3 | | | | | | | | | 13 - self before illness ! ideal self - 2 | | | | | | | | | | | 14 - self with delusion! self - 1 | | | | | | | | | | | | | 15 - self as dreamer ! | | | | | | | | | | | | | | | ! balanced (1) 1 4 2 2 3 5 2 5 4 2 6 2 2 3 3 (1) get along wit! isolated (2) 3 6 3 5 5 4 5 4 5 4 4 4 2 2 3 (2) sociable ! ely integrated (3) 2 2 2 3 5 3 2 3 2 3 3 4 4 5 3 (3) excluded ! discursive (4) 4 1 3 1 2 4 2 3 3 2 3 3 3 5 4 (4) passive ! open minded (5) 2 1 2 1 2 4 4 2 4 2 6 3 2 2 3 (5) indifferent !
- 43. Creating a bertin plot bertin(x)! ! !
- 45. Changing the look by modifying the arguments bertin(x, colors=c("white","darkblue"))! !
- 46. Creating biplots of elements and constructs biplot2d(x)! !
- 47. Creating composite plots of elements and constructs biplot3d(x)! !
- 48. Detect implicative dilemmas using correlations indexDilemma(x, self=1, ideal=2)! ###################! Implicative Dilemma! ###################! ! Dilemmatic Self-Ideal Construct Pairs! #####################################! ! By A Priori Criteria:! ! RexSI Rtot Constructs! 1 0.52 0.63 1 balanced - get along * <==> 5 open minde - indifferen! 2 0.60 0.64 1 balanced - get along * <==> 6 dreamy - dispassion! 3 -0.35 -0.54 1 balanced - get along * <==> 7 practicall - depressed! 4 0.35 0.42 1 balanced - get along * <==> 8 playful – serious! RexSI = Correlations excluding Self & ideal! Rtot = Correlations including Self & ideal! Rtot was used as criterion! * = discrepant construct pair!
- 49. Generate a cluster dendrogram for the boeker grid. You have 2 minutes Your turn
- 51. out now!
- 52. Press to generate document Insert tags
- 53. Using R markdown • Markdown is a lightweight language to structure a document • R code chunks can be directly included • Include R code between the following tags ```{r} # Some R Code here ```
- 55. Generate a report with inter-construct correlations for the boeker dataset. You have 2 minutes Your turn
- 58. Create a function that counts the number of midpoint ratings Task
- 59. Writing new functions f <- function(){! !# some R commands! }! f()! ! ! f <- function(x){! !x! }! f(12)! ! !
- 61. ! midpoints <- function(x) { ! !scores <- getRatingLayer(x) ! !midpoint <- getScaleMidpoint(x) ! !sum(scores == midpoint)! }! ! midpoints(bell2010)! The Midpoint Function
- 62. Part III
- 64. OpenRepGrid -‐ the workhorse Web based Local Building GUIs on top of OpenRepGrid PC / Server GUI type OnAir Other special purpose implementa+ons ?
- 68. gridhub developers Matthias Kaulartz (programming) Mark Heckmann (concept)
- 72. Want to participate? You have suggestions or ideas? Just get in touch!
- 73. Thanks!
- 74. Literature • Fransella, F., Bell, R. C., & Bannister, D. (2004). A manual for repertory grid technique (2nd ed.). Chichester: John Wiley & Sons. • Fromm, M. (2009). Grid Software. European Personal Construct Association. Retrieved July 25, 2010, from http://www.epca-net.org/ repgrid/software. • Heckmann, M. (2011). OpenRepGrid - An R package for the analysis of repertory grids (Unpublished diploma thesis). University of Bremen, Bremen, Germany. • Muenchen, R. A. (2011). The Popularity of Data Analysis Software. Retrieved March 28, 2011, from http://sites.google.com/site/ r4statistics/popularity. • R Development Core Team. (2011). R: A language and environment for statistical computing. Vienna, Austria: R Foundation for Statistical Computing. ISBN 3-900051-07-0, URL http://www.R-project.org/.