CHAP 06 REVIEW Q&A

Question 1

Define the following terms:

• Hard edit
• check digit
• data type check
• table check
• cross-check

Answer 1

• Hard Edit : catches serious errors; information is edited or rejected.
• Check Digit : internal edit on critical value field such as property identification number.
• Data Type Check : ensures non-numeric data is not entered in numeric fields.
• Table Check : ensures data is one of allowable from pre-specific table.
• Cross-Check : checks for internal consistency between data items.

Question 2

For each of the following property characteristics, explain whether it is:

1. Quantitative or Qualitative?
2. Continuous, Discrete, or Binary?
3. Objective or Subjective?

Answer 2

Question 3

Two recent developments in data collection are hand-held data entry devices and video imagery.

Which of these developments do you feel offers the greatest potential for improving data collection? why?

Answer 3

Following are some advantages and disadvantages of each.

Hand-held data entry devices.

• less paperwork
• fewer errors (forgetting items while in field and data entry errors)
• more efficient
• expensive

Video Imagery

• can reduce need for field visits
• useful for appeal process