BOX 2 : Indices of ICT use and familiarity

Three indices of ICT use and familiarity were derived from several observed variables that were collected in the
ALL survey. ICT related variables were examined using Exploratory Factor Analysis with principal components
specified as the method. Confirmatory Factor Analysis was then used to validate three models that were
hypothesized on the basis of the exploratory results and an interpretation of the observed variables. Index scores were derived according to the specified models using a Rasch scaling approach. Scores for each index are expressed as standardized scores on a 10-point scale, with a mean of 5 and a standard deviation of 1.5.

The underlying variables used to construct the three measures are outlined below:

1. Index of perceived usefulness and attitude toward computers

• Please tell me whether you strongly agree, agree, disagree, or strongly disagree with each of the
  following statements:
  • Computers have made it possible for me to get more done in less time
  • Computers have made it easier for me to get useful information
  • Computers have helped me to learn new skills other than computer skills
  • Computers have helped me to communicate with people
  • Computers have helped me reach my occupational (career) goals

2. Index of diversity and intensity of Internet use

• In a typical month, how often did you use the Internet for the following purposes? (Daily, a few times
  a week, a few times a month, never)
  • Electronic mail (e-mail)
  • Participate in chat groups or other on-line discussions
  • Shopping (including browsing for products or services but not necessarily buying)
  • Banking
  • Formal education or training (part of a formal learning activity such as a course or a program of
    studies)
  • Obtain or save music
  • Read about news and current events
  • Search for employment opportunities
  • Search for health-related information
  • Search for weather-related information
  • Search for government information
  • Playing games with others
  • General browsing
  • Other purposes; specify
• In a typical month, how many hours did you use a computer at home?
  

3. Index of using computers for task-oriented purposes

• In a typical month, how often did you use a computer for the following purposes? (Daily, a few times
  a week, a few times a month, never).
  • Writing or editing text
  • Accounts, spreadsheets or statistical analysis
  • Creating graphics, designs, pictures or presentations
  • Programming or writing computer code
  • Keeping a schedule or calendar
  • Reading information on a CD-ROM or DVD
• In a typical month, how many hours did you use a computer at home?