ECONOMIC & SOCIAL RESEARCH COUNCIL

CAQDAS Comparison

CAQDAS Comparison

by Thomas Koenig

This is a comparative overview of the most important computer-assisted qualitative data analyses software (CAQDAS, Fielding & Lee 1995) packages. Unlike most other reviews, it is not ordered by software products, but by product functions. As software capabilities are in a constant flux, we will aim to keep these pages up to date to reflect the latest versions of the reviewed programs.

Although it is true that all CAQDAS programs fulfill similar tasks (Lewins & Silver 2004: 3ff; Weitzman and Miles 1995), at the same time there are some substantial differences between the different packages (Heimgartner 2005; Lewins & Silver 2004; Lewis 2004). These are not simple differences of taste. As I have demonstrated elsewhere (Koenig 2004), specific methodologies might require a specific CAQDAS, which may not always be the program most widely available. Even if the CAQDAS available to you might support your chosen methodology, classical path dependence theory (David 1985) cautions us against choosing a program solely on the basis that it is available at one's institution. Since the learning curve for almost all CAQDAS is steep, even peer group support might not outweigh the advantages a better fit for your methodology might have.

Elsewhere I have followed others (e.g.; Lewins & Silver 2004: 3), who argue that CAQDAS cannot decide about a methodological approach. I would even go further and suggest that CAQDAS affinities with certain methodologies may steer the analyst subconsciously towards these methodologies. It is therefore essential to decide upon one's methodology, before a decision on a specific software can be made. Once the methodology is chosen, you can identify the tasks a software should ideally perform to support this methodology. The following pages might assist you in this decisions, as will other software reviews and the developers' pages, which can be found here. Also, keep in mind that some qualitative approaches might be served better by software not specifically developed as all-purpose CAQDAS. If you require only some CAQDAS functions, you might be better off with general purpose software or more specialized programs, such as Transana. To facilitate this decision, some of these programs have been included in the comparison.

After reviewing technical and ergonomic features of the softwares, their suitability for different forms of textual and multimedia data, this comparison follows the conceptualization of the main CAQDAS functions, as they have been identified by Weitzman and Miles (1995): Searches, coding strategies, and theory visualization networks. It is finishes with an assessment of their stability and speed, statistical functions, and a review of their idiosyncrasies and some methodological affinities.

This review explictly aims to include also software, which is not usually considered QDA software, as many of these progrmas fulfil some (but never all) of the functions that CAQDAS perform equally well or better. In many cases, more specialized programs, such as fs/QCA for ("Fuzzy Set") Comparative Analysis, or more general programs such as spreadsheets or search aides such as Google Desktop Search will be better suited for your research than CAQDAS. However, Microft Word, which has been suggested as a CAQDAS substitute (La Pelle 2004), in the fewest cases will be the most suitable substitute.

Technical Data

Most contemporary CAQDAS with the exception of HyperRESEARCH, which is indigenous to the Apple Mac-OS, but also features a Windows version, and TAMS, which can only be used with Mac-OS and Linux, are built for Microsoft's Windows platform. Below table overviews the basic technical features of the programs.
 Price
(educational)
Version
Tested
Operating
System(s)
Interface
Language(s)
ATLAS.ti€3905.0 RC2WindowsEnglish German
E6 (formerly ETHNOGRAPH)$2005 (Demo Version)WindowsEnglish
HyperRESEARCH$3702.6Mas-OS WindowsEnglish
Kwalitan€3155.0WindowsDutch/Flemish English1
MAXqda (formerly winMAX)€340/£255/$4452k3WindowsGerman English Spanish
QSR N6 (formerly NUD*IST)£205/$340 (2003)6.0WindowsEnglish
QSR NVivo£270/$445 (2003)2.0WindowsEnglish
QDA Miner$2951.0WindowsEnglish
Qualrus $3992.0.4.0WindowsEnglish
TAMSfreeware2.50b5Mas-OS Linux/UnixEnglish
Weft QDAfreeware2.0.4.0WindowsEnglish
Non-CAQDAS benchmark programs
InfoRapid Search&Replace/Cardfilefreeware3.1eWindowsGerman English
Transanafreeware1.22WindowsEnglish

Ergonomics

The ergonomics of a program might not be the most essential criterion for the choice of a program, but in some cases it may very well be one criterion.

There are at least three reasons, why you should seriously consider the intelligibility and user friendliness of software:

  1. Your learning curve of a program depends at least partially on the question of the intelligibility of its user interface. That kind of userfriendliness depends on the clarity of its menu structure, your familiarity with its overall structure and the intelligibility of its graphics. The former will depend on your familiarity with its graphical outlook, i.e. for most contemporary users the interface should resemble modern Windows programs, while the latter will depend on the choice of icons and their textual description.
  2. The biggest advantage of computer-assisted content analysis is its capability to handle bulk data. If you want to handle large amounts of data with some interpretive input by the analyst, then a fast handling of the interface is essential. Therefore, customizable keystroke commands would be desirable for efficient data handling.
  3. Finally, the easier intelligible a program is, the more likely it is that you will know all of its options, as most people do not tend to read through the manual.

Unfortunately, almost all contemporary CAQDAS do not behave like modern Windows programs, but their window design and handling is frequently oriented at outdated versions of Windows.

Except for N6, which features an archaic Windows 2 style interface, which pastes command lines into a window, all programs are highly mouse oriented, excluding less intuitive, but faster keystroke commands.

For Windows users, it might be at first confusing that HyperRESEARCH even in its Windows version behaves like an apple program, even emulating characteristic Apple sounds. HyperRESEARCH windows are also the most difficult to handle in Windows, because they again behave like Apple windows and open four main Windows windows instead of a variety of subwindows, as most indigenous Windows programs do.

ATLAS.ti, whose search window (shown below) contains buttons labeled with a single letter and whose default layout clutters its interface with a button, whose sole function is the production of a computer voice proclaiming "I hate computers" does certainly not deliver a groundbreaking interface with respect to ease of use. Thankfully, from Built 62 onwards, this button can be removed by checking the option "be serious" in the preferences menu.

ATLAS.ti Query Tool (68K)

The main menu of NVivo does not offer the familiar structure of drop down menus on, but instead offers a "Project Pad" (pictured below), which contains several buttons on several nested tabs.

NVivo project pad (76K)

MAXqda, QDA Miner and Qualrus follow the normal layout of Windows programs most closely. The latter two programs also offer the easiest window handling.


 Interface
"Feel"
IconsWindow
Handling1
Shortcut
Keys
ATLAS.ti 5.0 Windows 95cryptic non-standard (drop down menus), no shortcut keys very few, not customizable
E6 Windows 95
HyperRESEARCH 2.6 Mac-OS text menus only non-standard: several floating windows, non-standard shortcut keys: windows appear as if four differerent applications none
Kwalitan 5.09 Windows 3.11 next to verbal explanation, some menus not translated from Dutch Windows 3.11 behavior, no shortcut keys none
MAXqda 2 Windows 3.11 fairly intuitive, tooltip pop-ups Windows 3.11 behavior, no shortcut keys none
N6 Windows 2.0 upon DOS commands none n/a none
NVivo 2 non-standard, Windows 95 fairly intuitive none
QDA Miner 1.0.15 Windows 95 intuitive non-standard none
Qualrus 2.0.4.0 Windows 95 mainly text buttons no shortcut keys very few; for text editing only
TAMS 2.50b5 Mac-OS
Non-CAQDAS benchmark programs
InfoRapid Search&Replace 3.1e Windows 3.11 none n/a n/a
Transana 1.22 X-Windows text menus only unwieldy none

Textual Data

Even though some CAQDAS by now also organize effectively multimedia data, the core data for all content analyses remain to be textual data, which are much easier to search than visual or audial data.

Traditionally, CAQDAS have been used for transcribed interview data, where the analyst could choose the file format. Media studies, in particularly studies of the new media, however, frequently analyze already existing text files, whose format therefore cannot be influenced by the researcher. It would thus be desirable, if CAQDAS could handle a wide variety of data formats.

The most important format is, of course, still plain text. But plain text is not always plain text. Most programs will handle the standard English ascii character set, but some have problems with different iso definitions for other languages, which contain accents (e.g. ê), Umlaute (e.g., ö), or funny currencies (e.g., €), not to speak of Cyrillic or Γρεεκ characters (let's no go to pictorial languages). Most programs can handle these different encodings only with great difficulties, hence in practice, it is frequently advisable to convert all textual data into formatted text, particularly, if you use documents in different languages at the same time. Except for N6 and HyperRESEARCH (which allows for some limited manipulation of the code page for characters), all CAQDAS now allow for text in rich text format.

Even though html and xml are far more flexible and human readable formats, CAQDAS developers have adopted rtf as the primary format for formatted text, that is, if the software accepts formatted text. That means that for most documents you will need to convert your files into rich text format, which usually means that there will be conversion imperfections, particularly when it comes to tables, headers and other special sections of text documents. If objects like pictures or spreadsheets are embedded with a text file, only ATLAS.ti and QDA Miner will be able to display these.

The latter two programs are the most versatile with respect to text files, with Qualrus being the only other program, which handles html. Most others can only process the textual components of rich text. But even the most versatile programs are still a long way from the freeware program Inforapid, which cannot code, but which searches (and in combination with its suite sister Cardfile can sort these files.


  ascii/iso txt rtf html/xml Proprietory Formats
ATLAS.ti 5.0 ascii, several iso definitions, use rtf, when more than one iso-definition is used yes, including embedded object links html; internally converted into rtf, conversion imperfections doc, wpd, xls, wk3; all internally converted into rtf, conversion imperfections
E6
HyperRESEARCH 2.6 ascii, some Latinic iso definitions can be adjusted no no none
Kwalitan 5.09 ascii yes, but no embedded object links no none
MAXqda 2 no, conversion to rtf required (no built-in converter) default format; no embedded object links no none
N6 ascii no no none
NVivo 2 ascii yes, but no embedded object links no none
QDA Miner 1.0.15 ascii, internally converted to rtf yes, including embedded object links html; internally converted into rtf, conversion imperfections doc, wpd, xls, wk3; all internally converted into rtf, conversion imperfections
Qualrus 2.0.4.0 ascii yes, but no embedded object links html none
TAMS 2.50b5
Non-CAQDAS benchmark programs
InfoRapid Search&Replace 3.1e ascii; iso specifications according to Windows settings internal converter doc/xml unconverted or converted via internal or external converter doc, wpd, xls, pdf, wk3; converted via internal or external converter
Transana 1.22 n/a n/a n/a n/a

Multimedia Data

The digital revolution has made it possible to store and manipulate video and audio data to supplant textual with visual analysis and to easily capture communicative strategies not, or only with meticulous transcription, picked up by pure textual analysis. Alas, most CAQDAS still do not support an effective integration of such data types.

Effectively, only three CAQDAS — ATLAS.ti, HyperRESEARCH, and Qualrus — handle multimedia data in a way that is useful for the analysis of this kind of data, as they allow for the coding of video and audio sequences. NVivo only allows to link to multimedia data, that is, only entire picture and/or videos can be coded categorically. It therefore quickly reaches its limitation, when you work extensively with audio or video data (Lewis 2004: 461)

If you exclusively work with video or audio data, you might want to consider the freeware Transana, which performs all desirable coding and transcription functions.

  Linking to Multimedia Files Coding Parts of Pictures Coding/Transcribing of Video/Audio Data Handling of Compressed Files
ATLAS.ti 5.0 yes yes yes, but inconvenient Window handling4 all that are supported by Windows configuration
E6
HyperRESEARCH 2.6 yes yes yes all that are supported by Windows configuration
Kwalitan 5.09 no no no none
MAXqda 2 no no no none
N6 no no no none
NVivo 2 yes no no none
QDA Miner 1.0.15 no no no none
Qualrus 2.0.4.0 yes yes yes all that are supported by Windows configuration
TAMS 2.50b5
Non-CAQDAS benchmark programs
InfoRapid Search&Replace 3.1e n/a n/a n/a n/a
Transana 1.22 yes yes yes all that are supported by Windows configuration

Searches

Most so-called qualitative research benefits strongly from the effective searching of (textual) data (Dohan & Sánchez-Jankowski: 485). Ideally, CAQDAS should be able to search both codes and text using the following search types:

NVivo's search functions, which owe much to earlier NUD*IST releases, no longer beat the competition "hands down" (Weitzman and Miles 1995: 248), but NVivo still is the only program that allows for fuzzy searches. ATLAS.ti offers sophisticated GREP searches, which have supported UNIX users since the early 1970s.

None of the search tools for text, however, are as versatile as the ones the freeware InfoRapid Search&Replace, which processes a wide variety of text formats from plain text to Adobe Acrobat files, offers. Especially in conjunction with the fuzzy searches of SimFuz,1 another freeware, this little helper application, which also features an add-on data file management system (InfoRapid Cardfile), offers a viable alternative for methodologies — such as some brands of Discourse Analysis — that do not require any coding of data.

Below table overviews the search capabilities of all programs.

  Boolean Searches Proximity Searches Placeholder Searches Fuzzy Searches Search Combinations
ATLAS.ti 5.0 text: no;
codes: and, or, not
codes only: various GREP commands no flexible, but only with respect to codes
E6
HyperRESEARCH 2.6 text: no;
codes: and, or, not
no searches for codes are combinable
Kwalitan 5.09 and, or, not2 no no no through iterative filters
MAXqda 2 Text:
and, or
Codes: and, or, not
text & codes:
fixed unit (paragraphs)
no no very limited
N6 Text:
no

Codes: and, or, not
codes only: various multiple placeholders no flexible, but some limitations apply
NVivo 2 and, or, not both text and codes; flexible multiple placeholders basic flexible, but some limitations apply
QDA Miner 1.0.15 text only: and, or, not codes only: various standard wildcards and character ranges no any combination
Qualrus 2.0.4.0 and, or, not requires use of scripting language requires use of scripting language no limited to one Boolean operator
TAMS 2.50b5
Non-CAQDAS benchmark programs
InfoRapid Search&Replace 3.1e and, or, not highly customizable multiple placeholders no any
Transana 1.22

Coding

Coding is at the heart of CAQDAS, and a wide variety of coding techniques exist.

The most common coding techniques are:

All codes are usually stored in a codebook, which in some programs can be structured in a hierarchy and/or a network. Some programs also allow you to color codes to organize them.


  In vivo Contextual Automatic Color of Coding Stripes Codebook
ATLAS.ti 5.0 yes simple very slow random flat codebook, but codes can be linked in a variety of ways
E6
HyperRESEARCH 2.6 no windows are difficult to handle yes, but sources are quite cumbersome to add (one source at a time) none flat
Kwalitan 5.09 yes simple simple text only; invalid error messages none complex tree structure
MAXqda 2 yes windows are difficult to handle quick and stable five colors available hierarchical
N6 yes simple simple none hierarchical
NVivo 2 yes simple very slow no, and coding stripes slow the program considerably in large projects hierarchical, different types of codes
QDA Miner 1.0.15 no straightforward quick and stable all Windows colors Only two levels in hierarchy
Qualrus 2.0.4.0 yes cumbersome requires use of an idiosyncratic script language ? cumbersome
TAMS 2.50b5
Non-CAQDAS benchmark programs
Textpack
TCAS

Variable Diagrams

Some CAQDAS, namely ATLAS.ti, HyperRESEARCH, NVivo, and Qualrus, allow for the visualization of theoretical models among variables/codes in diagrams. While these model builders are not as flexible graphic programs such as Corel Draw, they are much easier to operate. While HyperRESEARCH merely allows you to diagrammatically link different codes with each other, NVivo and Qualrus offer several types of links to depict causality, interdependence, hierarchy, and contradiction. ATLAS.ti offers the by far most flexible model editor, which allows you to customize the types of linkages between codes. It is also the only editor that actually links the codes among each other via hyperlinks.
  Visualization Option Ease of Use Types of Links Links refer to Data
ATLAS.ti 5.0 complex models simple customizable yes
E6
HyperRESEARCH 2.6 very basic straightforward none no
Kwalitan 5.09 no n/a n/a n/a
MAXqda 2 no n/a n/a n/a
N6 no n/a n/a n/a
NVivo 2 basic straightforward three types no
QDA Miner 1.0.15 no n/a n/a n/a
Qualrus 2.0.4.0 basic straightforward cause/effect; exclusion/contradiction; aspect of n/a
TAMS 2.50b5
Non-CAQDAS benchmark programs
Graphics Program customizable cumbersome customizable no
Paper & Pen customizable :-) customizable no

Stability & Speed

One of the greatest advantages of CAQDAS are their efficiency. Instead of cumbersome searches through filing cabinets or myriads of loose cards, you can search for your data or notes at the ease of a mouse click. However, CAQDAS are not always the fastest or even the most stable programs. Here we document our experiences with the stabilty and speed of the different programs.

We measured the stability and speed of the programs using a 2GHz Pentium 4 computer with 512MB RAM running the Windows 2000 operating system with several, typical Office programs running in the background: A mail program (Qualcomm Eudora), an inter browser (Mozilla Firefox), a Word processor (Microsoft Word), a statistical package (SPSS), and Adobe Acrobat. Each CAQDAS was supplied with 2,626 plain text (in the case of MAXqda, which does not allow for plain text: rich text) documents, which ranged from 30 Bytes to 10 Kilobytes in size. All features of the programs were then tried out over a period of several days and the number of crashes were noted down. Since the differnt programs have different ranges of functions, the crash figures are not fully comparable: A program might have a bug in a function some of the other programs might not even offer. Likewise, different versions of Windows might yield very different results. Yet, we feel that a program should be bug free to ensure a smooth working process. Using the standard Windows Task Manager, the CPU time was measured. Finally, we ran simple, Boolean and proximity text searches and measured the time it took to perform these searches.

Except for MAXqda, all CAQDAS frooze at least once, i.e. did not respond to user input after a waiting period of 3 hours. It therefore seems advisable to always create backup copies of the project one is working with. Kwalitan was the least stable program. Most of its bugs did not crash the program entirely, but often just displayed error messages — some of them in Dutch — which require a subsequent restart of the program. While there is little loss of information, this can become quite a nuisance. NVivo, which to be sure is not intended for the amount of data we used in the test, tended to use up so much CPU time, that it quasi frooze, when some functions (such as the display of coding stripes during coding or editing) were performed. Much of the search and coding functions moreover became unusable, once a project surpassed a few hundred files. Below that limit, the program worked fine. ATLAS.ti was considerably more stable, but it too ran into time problems, when searches and codings were performed over several hundred files. Qualrus improved yet again over ATLAS.ti, both in terms of stability and in terms of speed for those functions it offered an equivalent to ATLAS.ti. Finally, QDA Miner and MAXqda both were the most stable and the fastest CAQDAS.


  Stability CPU Usage Simple Search Complex Search Autocoding
ATLAS.ti 5.0 medium (4) high 6'20 12'40 12'20
E6
HyperRESEARCH 2.6
Kwalitan 5.09 very low (19)1 low 24'30" 27'30" n/a
MAXqda 2 stable (0) low 0'10" 0'19" 0'17"
N6
NVivo 2 medium (6) extremely high 20" >3h n/a3
QDA Miner 1.0.15 high (1) low 0'14" 0'17" 0'40"4
Qualrus 2.0.4.0 high (2) low to medium 0'23" 1'04 n/a5
TAMS 2.50b5
Non-CAQDAS benchmark programs
InfoRapid Cardfile stable (0) very low 0'20" 0'26" n/a
Textpack
TCAS

Statistical Functions

Even though CAQDAS are expressly designed for qualitative analyses, one of the most promising fields for methodological enhancement through CAQDAS lies in mixed-method approaches, as most CAQDAS should handle bulk data very efficiently.

Three potential CAQDAS functions might be particularly useful for the integration of quantitative methods into qualitative research:

  1. Word counts, in particularly when combined with lemmatizations (word stemming), might reveal useful hints for potential keyword codes.
  2. Crosstabulations and word maps might identify themes in the data.
  3. Most importantly, the export of data, such as code frequencies across documents, enables statistical analyses withe the appropriate external software.

In contrast, the possibility to directly perform more complex quantitative content analyses within CAQDAS, while convenient, can take a backseat, if the latter data exchange facilities are offered. At any rate, currently only QDA Miner, which is integrated in the Simstat Suite for statistical analyses offers such functionality. As displayed in below table, which summarizes the statistical facilities offered by the different CAQDAS, all of the programs offer unproblematic transfer of their data to statistical packages and spreadsheets, once the data have been generated. The major differences therefore lie in the ease of data generation.

Most programs (with the exception of NVivo and Qualrus) allow for the display of simple word frequencies. ATLAS.ti and MAXqda with its plug-in MAXdictio allow moreover for the usage of manually defined stop word lists, an essential tool for all quantitative analyses. QDA Miner goes even a step further, as it contains inbuilt and links to dictionaries.

QDA Miner is also the most sophisticated program, when it comes to the analyses of co-occurrences of codes and/or strings, as it not only allows for the visualization of co-occurrence matrixes, but also for a number of clustering methodologies. All newer CAQDAS allow for some visualization of co-hierarchy matrices; NVivo, for instance, colors co-occurrences darker, the more frequent they are.

Finally, a major consideration in the use of CAQDAS for mixed methods is their speed, which will be discussed in the next section.


  Word Counts Crosstabs Exchange with Statistical Software Inbuilt Statistical Functions
ATLAS.ti 5.0 manual stop list; slow1 no csv files2 and drag & drop no
E6
HyperRESEARCH 2.6
Kwalitan 5.09 simple requires word list spss and csv files2 none
MAXqda 2 MAXdictio add-on allows for Word lists no csv files2 and drag & drop no
N6
NVivo 2 no visualization (codes only) spss and csv files2 and drag & drop no
QDA Miner 1.0.15 inbuilt lemmatization [EN/FR]; inbuilt stop word list visualization (codes and words) csv files2; direct interchange with Simstat modules extensive
Qualrus 2.0.4.0 no codes only csv files2 none
TAMS 2.50b5
Non-CAQDAS benchmark programs
Textpack

Idiosyncrasies

Even though most CAQDAS perform similar tasks, still every CAQDAS features some idiosyncrasies.

The most common peculiarity is probably the technical terminology each CAQDAS uses. For instance, the database, which holds (or links to) all files that belong to a particular project is called "project" in most programs, but the developers of ATLAS.ti insist on the label "hermeneutic unit," while HyperRESEARCH uses the term "study." Similarly, NVivo and N6 speak metaphorically of "nodes," where the mainstream of CAQDAS developers have opted for "codes."

Beyond these purely semantic differences and the different capabilities of the different programs in areas of multimedia and integration of statistical methodology, two programs offer particular functions, no other CAQDAS offer:

Methodological Affinities

The other pages in this section have hopefully given you an overview about the functionality of CAQDAS, which can assist you in the choice of CAQDAS, if you know what kind of tools are required for your methodology. There are a few areas, which I have not covered, but which nevertheless may be crucial for your decision, which software to use for your work. Most importantly, I have not (yet) covered the softwares' capabilities for teamwork and the merging of projects. Also, I have left aside issues of data archiving.

Elsewhere (Koenig 2004), I have examined the usability of CAQDAS for a specific methodology that attempts to quantify and systematize the identification of frames in textual data. Clearly, this cannot be the place to discuss the suitability of each program for all sorts of methdologies, though: Given the variety of methodological approaches, this would rather require an eight volume encyclopedia. Nevertheless, some general trends regarding the methodogical affinities of the different CAQDAS might provide you with an initial idea, as to what program might be suitable for your methodology.1

Mixed Methods

In a recent review of the potentiality of QSR software for mixed methods, Bazeley (2002: 241) praises "the advantages NVivo offers to the mixed methods researcher, [which] are, in the first instance, enhanced flexibility and convenience." Our evaluation paints a different story: Because of its limitations for larger projects, NVivo is decidely unsuitable for mixed-method approaches that use larger amounts of data. From the QSR range, we would therefore recommend N6, if any, for mixed method studies. Unlike NVivo, N6 has no problems with larger datasets and unlike most other CAQDAS, N6 offers a scripting language, which lets you automate processes. Unfortunately, though, N6's capabilities with respect to the size of a project are bought with a decrease of flexibility, as N6 is the only current CAQDAS, which requires preformatted plain text files as input.

ATLAS.ti, on the other hand offers both flexibility and capacity for larger projects, but its speed does not allow for efficient mixed-method strategies, once a certain number of data files has been exceeded. As in NVivo, it is less the sheer amount of data which matters in this respect, but the number of files influences the speed much stronger: While there is no problem to handle 5 files of 1,000KByte each, 5,000 files of 1KByte each bring NVivo to a standstill, while a simple autocoding with ATLAS.ti will give you time to have a short coffeebreak. During that time Kwalitan might have produced 20 error messages, as its instability is a serious issue under Windows 2000. Finally, Qualrus contains no in-built autocoding functions and therefore is only be suitable for semi-standardized material, such as open-ended interviews. On these, it performs well, not the least because it is the only CAQDAS that offers a scripting language.

Most mixed methods studies will thus fare best with either MAXqda or QDA Miner, as these run fairly swiftly and stable across larger data sets. Unfortunately, neither offers currently multimedia support. If you also want to analyze videos and pictures, you therefore will have to recur to ATLAS.ti or HyperRESEARCH, whose speed we unfortunately did not test yet.

Discourse Analysis

Like many other methodological approaches to the analysis of discourse2, Discourse Analysis is a proliferated paradigm. Nevertheless, there are some recurrent themes in Discourse Analysis, which emphasize the discursive context (e.g. Antaki et al. 2002: 6) and the importance to examine discursive resources that are not utilized (Hammersley 2002: 768). In its narrow sense, coding, which seperates quotations from their contexts, and which cannot investigate silences, is therefore usually antithetical to Discourse Analysis. Although it is certainly possible to use coding primarily as a way of organzing data (Gibbs 2002: 4), the severe restrictions on the types of data most CAQDAS allow for and the decontextualizing effects of coding outweigh in my view the advantages such organization strategies have. Instead, most Discourse Analysts will primarily need to search their data. Of the classical CAQDAS, NVivo offers the largest variety of search functions. Except for fuzzy searches, which are important for data which contain many typographical errors, ATLAS.ti's search facilities are also quite sophisticated, and unlike NVivo is able to effectively handle (read: code) audio and video data. Yet, search functions are equally well performed by InfoRapid Cardfile, which also is the most liberal in the acceptance of file formats. Since with respect to coding, NVivo's only advantage is a fuzzy search facility, can be emulated by the freeware zip archive SimFuz, Cardfile seems the obvious choice for most Discourse Analyses that do not require coding features.

Ethnography

Since in ethnography the analyst is confronted with a host of different materials, it is imperative that a wide variety of data can be handled. Currently, only ATLAS.ti, HyperRESEARCH, and Qualrus allow for the effective integration of multimedia data.

References


  1. I would very much encourage you to contact me, if you would like to suggest further affinities.
  2. For frame analysis, cf. Entman 1993. Content Analysis is somewhat more coherent, but Weber (1990: 13) still rightfully insists that "there is no single right way to do content anlysis" (boldface: mine).

  1. For a few menu items and error messages. the English translation is missing.
  2. By "Window Handling," the navigation between the different functional windows, such as code book, case or text brwoser is meant.
  3. While coding, the Video Window is in the background. It therefore cannot be maximized during coding.
  4. The (now defunct) freeware SimFuz (Download 131K) performs sophisticated fuzzy searches on text, HTML, and older Word™ files.
  5. Searches in Kwalitan are implemented through filters.
  6. There are two reasons, why in vivo coding may be hazardous. From a theoretical point of view, it is imperative to "break" (Bourdieu, Passeron & Chamboredon 1991) with the communicative categories of everyday speech to analyze discourse effectively. From a practical standpoint, the ease with which in vivo codes are applied might lead to a coding/data fetish, which prompts the analyst to "Code everything." (Cisneros 2003: 306) Obviously, these hazards can be circumvented, if one stays aware of them.
  7. Additionally, Kwalitan frequently produced error messages, which did not correspond to actual errors.
  8. When displaying coding stripes, NVivo frequently freezes.
  9. As seaches could not be completed, autocoding time could not be measure.
  10. QDA Miner does not show, when coding is finished.
  11. Autocoding in Qualrus requires prior definition of segments.
  12. ATLAS.ti's Word Cruncher took more than three hours to perform its task onto approximately 2,000 documents with maximum 10KByte size.
  13. Comma or tab delimited files are plain text files, which can be read by virtually all statistical and office applications.
  14. Note, that this is an inductionist approach, which is heavily contested among social scientists.

References


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