Data Management Quiz

What is data?

• Organized information

• Raw information or facts

• Processed information

• Archived data

What is the primary concern of data management?

• Presenting data

• Analyzing data

• Collecting data

• Looking after and processing data

Which of the following is NOT an advantage of good data management?

• Improved processing efficiency

• High-quality data for analysis

• Increased data storage costs

• Efficient integration of results

What is a census?

• An experiment with controlled variables

• A survey of a subset of a population

• A systematic acquisition of information about all members of a population

• An observational study

What is a sample survey?

• A method to analyze data

• A type of observational study

• A selection of a subset within a population

• A method to collect data from all individuals

Which sampling method allows for the estimation of sampling errors?

• Nonprobability sampling

• Convenience sampling

• Probability sampling

• Quota sampling

What is systematic sampling?

• Sampling all individuals in a population

• Selecting every nth individual from a list

• Sampling based on convenience

• Randomly selecting individuals from different strata

What is the purpose of a control group in an experiment?

• To ensure randomization

• To receive the treatment

• To increase sample size

• To compare against the experimental group

What does the placebo effect refer to?

• The effect of blinding

• The effect of an imitation treatment

• The effect of randomization

• The effect of a real treatment

What is matched random sampling?

• Sampling individuals randomly from the population

• Pairing subjects based on specific characteristics

• Sampling based on convenience

• Sampling every nth individual