tulane university school of public health and tropical medicine module 6 of 10 motivation and...
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Tulane University School of Public Health and Tropical Medicine
Module 6 of 10Motivation and Practices for Developing PDA-
Based Electronic Forms
Jeffrey Shaffer, Ph.D.
Using Mobile Technologies to Conduct PDA-Based Surveys in Remote Areas
Part II: Electronic Form Design and Data Management Methods
In 2009, I was part of a research team to study Chagas' disease in two rural Mexican communities.
Data collection procedures for this project included conducting a PDA-based household survey, where I was responsible for developing the PDA-based electronic questionnaire forms.
The topics in modules 6-10 reflect many of the challenges that I encountered and techniques that I applied over the course of this project.
My Role in Conducting a Recent PDA-Based Household Survey
Module 6
Identify the motivation and practices for developing PDA-based electronic forms.
Link PDA-based electronic forms with an underlying table.
Develop PDA-based electronic forms with a set of controls and macros.
Identify techniques for data preparation, management, and visualization.
Synthesize PDA and global positioning devices to conduct a PDA-based household survey.
Course Competencies for Part IIModule 6
Those interested in conducting PDA-based surveys in remote areas or other locations where mobile technologies are useful
University students
Epidemiologists
Statisticians
Public health professionals
The primary outcome studied in this course is Chagas’ disease, but the course concepts are
directly applicable to a host of other outcomes.
Target Audience for Part IIModule 6
Each video module includes brief presentation of the material given in the course manual.
Problem sets are provided as companion modules and at the end of each chapter of the course manual to help you reinforce the concepts introduced in each module.
The course concludes with a set of learning questions to assess your general knowledge of the course content.
Several of the concepts covered in this part of the course overlap with those covered in Part I.
Course StructureModule 6
Ten video presentation modules (not downloadable)
Ten video problem set modules (not downloadable)
Ten PowerPoint presentations for course content (downloadable)
Ten PowerPoint presentations for problem sets (downloadable)
Course manual (downloadable)
Course data sets (downloadable)
Course MaterialsModule 6
Module 7
PDA-Based Electronic Form Design I
Module 6
Motivation and Practices
Overview of Part II
Module 8
PDA-Based Electronic Form Design II
Module 9
Data Preparation, Management, and
Visualization
Module 10
A Complete Case Study
Module 6
Module 7
PDA-Based Electronic Form Design I
Overview of Part II
Module 8
PDA-Based Electronic Form Design II
Module 9
Data Preparation, Management, and
Visualization
Module 10
A Complete Case Study
Module 6
Module 6
Motivation and Practices
Describe the format for Part II.
State the course competencies for Part II.
Define three classifications of electronic forms.
Identify several software applications for developing PDA-based electronic forms.
Use data synchronization software to transfer files between a PC and a PDA.
Capture PDA screenshots.
Module 6 Learning ObjectivesModule 6
An electronic form (e-Form) is an electronic template with protected information and fields for recording information.
Three broad categories:
1. Nonfillable
2. Single-ended
3. Two-ended
What is an Electronic Form?Module 6
The most basic classification of e-Forms
Essentially digital templates for paper forms
Not linked to a table
Information is recorded on printed copies of the form and manually entered into a table for summarization
Not very useful for PDA-based surveys unless the sample population is small
Nonfillable e-FormsModule 6
Electronic forms with digitally fillable fields
Not linked to a table
Information is recorded either by saving each form separately or by recording information on printed copies of the form and manually entering into a table for summarization
Useful when the main content needs to be customized for different populations or respondents
Single-Ended e-FormsModule 6
Electronic forms with fillable fields that are linked to an underlying table
Although data could be recorded by using only a table, it is considerably more efficient to record the data using a form
The form component is sometimes referred to as the front end of its associated table; the table component is often referred to as the back end of the form
Two-ended e-Forms will be used exclusively in this course.
Two-Ended e-FormsModule 6
PDA-based data collection is not very useful for responses with long strings
Best suited for questions with brief, closed-ended responses
PDA keyboards or miniature laptops should be considered for studies with long, open-ended responses
Suitability of PDAs for Data CollectionModule 6
Microsoft Access
Microsoft Word
Adobe Acrobat
Microsoft Internet Explorer
PageMaker
Microsoft Excel
Some PC-Based Software for Creating e-Forms
Module 6
While these packages provide great flexibility in creating forms, they are only suited for laptop or desktop computers (PCs)
We use the Visual CE e-Form software (www.syware.com) for the course applications.
$129 for a single user, or $399 for three or more users
Competing applications:
FAST (www.geoage.com/software.php)
$49 for each user, and $200 for data transfer software
Cybertracker (www.cybertracker.co.za/)
Freeware
Pendragon (www.pendragon-software.com/)
$299 for first user, and $65 for each additional user
e-Form Software for PDAsModule 6
The functionality of PDA-based e-Form software is very limited compared to that for PCs
The documentation for PDA-based e-Form software is not very well-developed
PDAs should be used as data collection devices; data management should be performed using the PC
Choosing e-Form Software for PDAsModule 6
Cost of base software, extensions, and updates
Customization abilities; e.g., available text sizes, labels, templates, and resizing features
Available controls; e.g., radio buttons, check boxes, drop-down lists, note boxes, and time stamps
Macro programming capabilities
Functionality on various PDA operating systems; e.g., Windows Mobile, PalmOS, and PocketPC
Synchronization capabilities
Customer support
Choosing e-Form Software for PDAsModule 6
The first step for developing PDA-based e-Forms is to establish connectivity between the PDA and the PC
Two software packages for establishing connectivity for PCs with Windows operating systems:
Microsoft ActiveSync Windows Mobile Device Center (WMDC)
This software is often referred to as data synchronization software
File ManagementModule 6
Microsoft ActiveSync
URL: http://www.microsft.com/windowsmobile/en-us/help/ synchronize/activesync45.mspx
Price: free
Supported for Microsoft Windows XP
Not Vista or Windows 7-compatible
Windows Mobile Device Center (WMDC)
URL: http://www.microsoft.com/windowsmobile/en-us/ help/synchronize/device-center.mspx#download
Price: free
Only supported for Vista and Windows 7
Data Synchronization Software Module 6
I will present the techniques in this course using ActiveSync; these instructions are very similar to those for using the WMDC.
1. Connect the PDA to the PC/Laptop using a USB cable 2. Open ActiveSync on the PC/Laptop: a. Click the Start button b. Select Programs c. Select ActiveSync3. Select Tools4. Select Explore Device
Using Data Synchronization SoftwareModule 6
6. Double-click the icon for your mobile device It should look like this:
7. Drag the M6Practice1.docx file to the My Documents folder on your mobile device
8. Open the M6Practice1.docx file from the mobile device
Illustration 1: Using the Data Synchronization Software
Module 6
Studies using PDA devices usually call for capturing PDA screenshots for preparing instructions and presentations
Capturing PDA ScreenshotsModule 6
PDA Screenshots
Remote Display Control for Pocket PC
URL: http://www.microsoft.com/technet/
archive/wce/downloads/ppctoys.mspx?mfr=true
Price: free
I had no problems running this software using Vista
This application is often used in conjunction with the “Print Screen” and “Snipping Tool” (Vista / Windows 7 Users) features for the PC
Capturing PDA ScreenshotsModule 6
1. Connect the PDA to the PC/Laptop using a USB cable 2. On the PC/Laptop: a. Open ActiveSync b. Open the Remote Display Control Host, and leave the new window open3. On the PDA: a. Click the Start button b. Select Programs c. Click cerdisp d. Click OK e. Click Connect f. Leave the Hostname set to PPP_PEER, and click OK g. Open the M6Practice1.docx file
Illustration 2: Capturing PDA ScreenshotsModule 6
4. On the PC/Laptop, select Start, Programs, and Accessories
5. To take the screenshot, Vista / Windows 7 users should choose the Snipping Tool, while XP users should select Microsoft Paint
Illustration 2: Capturing PDA ScreenshotsModule 6
Describe the format for Part II.
State the course competencies for Part II.
Define three classifications of electronic forms.
Identify several software applications for developing PDA-based electronic forms.
Use data synchronization software to transfer files between a PC and a PDA.
Capture PDA screenshots.
Module 6 Learning ObjectivesModule 6
A hands-on demonstration of some of the aforementioned software applications is provided next.
Hands-On DemonstrationsModule 6
This concludes Module 6.
In Module 7, I introduce strategies and techniques for designing PDA-based e-Forms.
What’s Next?Module 6