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What is C-I-SAID For?

The Code-A-Text Integrated System for the Analysis of Interviews and Dialogues (C-I-SAID) consists of an integrated suite of software programmes developed to facilitate the study of documents, usually based upon interviews or dialogues but can include documents such as questionnaires.  C-I-SAID has its most obvious applications in psychology, psychotherapy, sociology, medicine and market research but also has uses in wider areas such as law and the humanities - particularly in theatre

C-I-SAID offers a set of unique features which allow the depth of analysis, normally associated with a programme dedicated to qualitative analysis, within an analytic framework which is quantitative in orientation. Thus open ended coding, using comments and textual annotations, is accompanied by rating scales that can be categorical or numerical in format. There are also sections within the programme such as the lexicon (largely devoted to thematic content analysis) and the acoustic manager (devoted to the measurement of the volume, pitch and speed of speech) that generate statistics. The main outputs from C-I-SAID are reports, tables and charts which can be accompanied by a range of statistics these can be used to describe the data in tandem with qualitative methods.

C-I-SAID has been designed to enable the investigator to engage closely with their subject matter by making the original data, which may be a sound or video recording or a set of texts available at any stage in the analysis. Thus a paragraph in a report, a cell in a table or a point in a chart will usually be linked to their source data. A few mouse clicks can take you from a statistical description to the video, sound and text on which that was based.

The source data  is usually some form of human communication. This normally occurs in a situation where the participants can see and hear each other and use language to communicate. C-I-SAID enables studies using these different communication channels by allowing the investigator to use video, audio and text. Because it is sometimes impractical to use all three C-I-SAID makes it as easy to study a single channel often sound without video or text or, more commonly, text alone as in the  analysis of questionnaires.

What's Changed in Version 3

The changes are found in three main areas.

· The new methods for generating "document characteristics" enable the user to arrange their data within C-I-SAID so that they can easily move between three levels of analysis - the document level, the segment level and the document - segment level.
· The incorporation of the Acoustic Manager into the main programme means that when working with sound files the user has access to measures of pitch, volume and speech rate alongside a range of sound editing features.
· There has been further integration of the lexicon (with its features for computerised content analysis) and the rating scale features and many enhancements to the methods for developing content analysis.

These new features make C-I-SAID a unique programme that provides the depth of analysis associated with qualitative studies within a quantitative analytic environment. It is a flexible tool, which can as easily be used for the analysis of questionnaires (from data input to final report) as it can for the detailed analysis of a recorded or video taped dialogue. These different approaches are illustrated in the demonstration section of the User Guide

Importing Data

Data based on Media Files.

C-I-SAID bases its analyses on the documents within a project. A document can consist of sound, text and video. Each document is subdivided into speech units which in turn consist of segments. The segment is the normally the unit which is analysed. The user defines a segment which may be a speaking turn, a section of text consisting of a set number of words, or even a period of sound broken by a silence. In many cases C-I-SAID will automatically create the segment structure.  With Version 3 it is now possible to use the speech unit or the document as the analytic unit.

C-I-SAID has facilities for recording or copying audio files on to the computer and a number of features for transcription, including the capacity to slow sound down, insert silences into text, or to stop playback for a specific period of time. C-I-SAID contains a spell checker with British and American English dictionaries, of more than 200,000 words, and the facility to add dictionaries from other European languages .

C-I-SAID uses hypertext links to form associations between different parts of a document. Such links mean that the transcription and the media files are synchronised and the user can move between them with ease. These links, which are made by the user, also provide the facility to move between codes and the underlying source data.

Although C-I-SAID is specifically designed to analyse dialogues and has special facilities to accommodate different speakers with functions that enable the investigator to study the process sequentially it is, however, by no means restricted to this format. It is possible to code a media file directly without any transcription of sound, indeed the programme could easily be used for the study of music. 

Data Based on Text

C-I-SAID is not restricted to the study of conversation. C-I-SAID uses the convention that a normal document without speakers contains a single speaker and can automatically format such a document accordingly. Indeed from entering a Text Document to obtaining a full content analysis can take a matter of seconds.

C-I-SAID can also import data formatted as tab delimited files. The Data Editor introduced in version 3 provides a powerful and flexible means of editing and creating these files. Its text windows mean that questionnaire and other forms of data can be typed straight into C-I-SAID. The import functions can automatically create new documents and add the required scales and codes from a tab delimited file.  

 

Lexical Coding Methods

Thematic Content Analysis.

C-I-SAID creates an index of every word in a project. Words can be brought together in to word groups which relate to concepts that interest the investigator. C-I-SAID contains two internal dictionaries each of which contains more than 50 word groups involving more than 5,000 words which can be used as the basis of user defined groups. Word groups can also be created by importing them from external sources or generating them from the documents in a project.  

Comments

A comment is a piece of text added by the user to a segment. Comments are stored apart from any texts in the segments to which they apply. C-I-SAID creates a separate index of words in the comments which can be searched in the same way as the text to which it is attached.

Annotations

An annotation is a word entered into the main body of the text which functions as a code. Annotations might be used to indicate features such as tone of voice. C-I-SAID attaches an index of annotations to the comments index.

Rating Scales

User Created

Rating Scales are created by the user to try and capture the underlying essence within the source data. C-I-SAID allows the user to create numerical, ordinal or nominal scales. Rating scales can be either categorical or numerical. Categorical scales contain codes in discrete categories. E.g. A scale of Anxiety might have three ordered categories High, Medium, Low a scale Food might have categories such as Meat, Fish, Cheese. By contrast numerical scales only contain numbers.

Scales and codes are added to a project through the Rating Scale Editor. In the editor the user can add instructions as to how a scale should be coded. These are displayed when the user elects to code a segment on a scale.

There are five methods for manually coding rating scales.

Segment View displays all the scales and their codes for the current segment. The user clicks on a scale and the available codes are displayed with the coding instructions. Clicking on a code applies the code to the segment. Codes can also be pasted into a range of segments.
Grid View displays all the codes and scales in a spreadsheet. To code a segment the user clicks on a cell.
Quick Code is for keyboard entry. The scales and codes for a scale are presented as a numbered list. To code a scale a numbered is entered. The user uses the TAB key to move between scales and segments.
Code View only displays the scales that have been coded but also displays the comments at the same time. For coding, scales and codes are selected from  drop down lists.
Tab delimited input. All the data is entered into a tab delimited file (this can be done in the Data Editor or a spreadsheet) and then imported into C-I-SAID. C-I-SAID automatically creates the required documents, scales and codes. Using this method it is possible to output data to an external statistics programme (e.g. to undertake a factor analysis) and then import the results back into C-I-SAID or to import a complete set of questionnaires including the text of open ended questions.

Auto Coding

In addition to manual coding the user can direct that the results of an operation such as a search, should be directed to the value of a scale. For instance, in analysing interviews based on consumer preferences you could search for all the segments that were coded "Expresses Preference" on a scale called Activity and all the segments coded True for the Words "Fish" or "Meat" or "Cheese" and direct the output to a scale called "Preference" with a value called "Food". You might then direct that all the segments containing the words "cinema", "theatre" or one of the words from the word group "Television" to be coded as "entertainment" on the preference scale. The word group television would be true if the segment contained any of the words "television", "tele", "tv". C-I-SAID would automatically code the segments with these values.

Computer Generated

Apart from scales created by the user, C-I-SAID can generate many scales automatically. The lexicon generates a variety of rating scales and the user can also draw upon the hidden lexical scales, such as words or word groups and can convert these into Rating Scales

Acoustic Scales


The Acoustic Manager can be used to generate acoustic scales for a document. These are added to the collection of scales. The acoustic scales, which are applied to the segment,  can include volume , pitch , time from beginning of file, length of segment in seconds, speech rate and ratio of sound to silence. These can be displayed graphically for any segment or selection and can be written into the database as numerical scales.

Analysis

Searching

C-I-SAID can search a project using any of the coding methods described above. Apart from the normal Boolean operators C-I-SAID has a number of unique operators which allow for complex searches. There is no limit to the number of phrases that can be built into a search. Output from a search is the segments meeting the search criteria which can be presented with their properties (text, media, codes) as reports, tables or spreadsheet. The output from a search can also be directed to a Rating Scale or be used to create a new document.  

Searches can specify which documents and speakers to include. Searches of words and word groups can be filtered so that only segments with specific codes are included. The user can move the focus of a search from the segment to the speech unit. Word group searches can be focused within syntactical units. For instance when searching for the co-occurrence of two concepts the user can determine that the search criteria will only be met if the occur within the same phrase or sentence rather than the same paragraph (segment).

Searches that output to reports take the form of documents which include the text of the segments that meet the criteria and links to the media file. The lexical structure of the output such as word counts and frequencies with comparisons to those segments which don't meet the search criteria are also available 

Lexical Analysis

Can be applied to all words and word groups in a project. There are currently 17 different functions in this part of C-I-SAID. Many of these have multiple representations.

These include

Word and word group counts and facilities for comparing these between speakers and documents.
Measures of association, including a concordance which shows the relative position of words to each other in a document, and cross-tabulations and correlations between individual words or word groups.
Sequential plots which show the use of words and word groups over time and the ways which one speaker's use of words are associated with the usage of another.

Many functions also have graphical outputs.

Rating Scale Analysis.

Rating Scale Analysis provides functions for analysing and graphically representing the Rating Scales in a project. Each output from Rating Scale Analysis is accompanied by a chart, clicking on which will take the user back to the source data.

The main features of Rating Scale Analysis are

Descriptive statistics describing the distribution of codes within the scales. Charts include bar graphs and pie charts based on numbers, percentages or cumulative percentages.
Methods of cross tabulation including both ordinal and nominal scale statistics. Charts include 3 D bar charts and stacked bar charts.
Differences of means including T- Test, F- test, and Median tests. Charts include box plots based on either means or medians .
Regression analysis with correlations and slopes. Chart is a scatter plot .
Methods for calculating inter rater reliability. C-I-SAID has a compare method which allows the codes for up to four instances of a document, coded by different raters, to be displayed along side each other. It can then print out a list of segments where the coding is mismatched and calculate inter-rater reliability.
Sequential charts which present information about numerical and categorical scales sequentially allowing the user to see the pattern of codes over time.
Lagged cross tabulation which plots the relationship between codes on one segment and codes on another.

Methods for Manipulating Documents and Codes.

A variety of methods exist for manipulating document structure. These include creating documents based on

temporal and volume features of the sound file
numbers of words spoken
punctuation
merging one document into another
selecting a number of segments from a document e.g. all responses from one speaker

Rating scales can be manipulated by computing a new scale

based on values in several other scales
recoding existing scales
counting values in other scales.

Methods for Editing WAV files.

Reports can be output as interactive web pages which allow the sound to be played in Internet Explorer. New WAV files can be created which only contain the segments in the document.
New documents can be created from the segments selected into a grid. A new WAV file can be created which only contains the relevant segments. This may draw on a number of different source WAV files.
WAV files can be edited and sections copied or deleted. A special erase feature allows sensitive information to be wiped without changing the data in the file.
WAV files can be extracted from AVI video files for acoustic analysis.

Input and Outputs.

C-I-SAID supports the following

media files: AVI, WAV, JPEG files (including MP3) and Windows Media Audio.
Text files: RTF, TXT and HTML
Tables can be output as RTF, HTML or tab delimited.
Graphs can be output as bitmaps or meta files.

Data grids, which form the basis of rating scale analysis can be output as SPSS command files and data/codes which are in tab delimited format can be input directly into a document.