01
Front
How do primary and secondary data differ?
Back
Primary data are collected directly to answer a particular question; secondary data were collected previously for another purpose.
Free Online Flashcard Deck
2 Data Collection and Quality Free Online FlashCards
Study 2 Data Collection and Quality with 12 free online flashcards. Review key terms, definitions, and concepts with this interactive flashcard deck.
12 cards
02
Front
What does metadata document about a dataset?
Back
Metadata describe a dataset and its methods, including who collected it, how and why it was collected, what it covers, and when it was collected.
03
Front
What is a population in data collection?
Back
The population is the full group a business wants to understand.
04
Front
What is a sampling frame, and what can its omissions cause?
Back
A sampling frame is the list or mechanism used to reach potential participants. If it omits part of the population, the sample may suffer from undercoverage.
05
Front
What defines probability sampling?
Back
In probability sampling, every population member has a known, nonzero chance of selection. This supports estimates of sampling uncertainty.
06
Front
When does nonresponse bias occur?
Back
Nonresponse bias occurs when people who respond differ in relevant ways from those who do not respond.
07
Front
What is a key rule for writing survey questions?
Back
Write clear, neutral questions that address one idea at a time. Questions that combine topics can make answers difficult to interpret.
08
Front
What does an operational definition specify?
Back
An operational definition states exactly how a measure is obtained, such as defining repeat purchase as a second completed order within 90 days.
09
Front
What does validity assess?
Back
Validity is whether a measure captures the concept it is intended to measure.
10
Front
What does data quality mean?
Back
Data quality is fitness for use: whether information is suitable for a particular purpose.
11
Front
What does consistency mean when checking data quality?
Back
Consistency means applying definitions, units, and formats the same way across records and over time.
12
Front
What are core practices for responsible data handling?
Back
Collect only information needed for a clear purpose, protect it from unauthorized access, restrict access appropriately, and securely dispose of it when no longer needed.