mmw

What is data?

• Processed information

• Organized information

• Raw information or facts

• Archived data

What does data management involve?

• Data visualization

• Data analysis only

• Looking after field data sheets

• Only data collection

Why is data management important?

• It ensures data is always correct

• It allows for high-quality data analysis

• It eliminates the need for data collection

• It guarantees future data use

What is a census?

• A survey of a sample

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

• An observational study

• An experiment with controlled variables

What is a sample survey?

• An observational study

• A method of data archiving

• A selection of a subset within a population

• A survey of the entire population

What is an experiment?

• A method of data collection

• A survey of a sample

• A procedure with controlled variables to study effects

• A type of observational study

What is an observation study?

• A type of census

• A study with controlled variables

• A study without controlled variables

• A method of data management

What is a characteristic of a well-designed survey?

• It must avoid random sampling

• It must be biased

• It must use leading questions

• It must be representative of the population

What is nonprobability sampling?

• Sampling where every element has a chance of selection

• Sampling where some elements have no chance of selection

• Sampling that allows estimation of sampling errors

• Sampling based on random selection

What is convenience sampling?

• Sampling that includes all members of a population

• Sampling based on random selection

• Sampling based on availability

• Sampling that uses a random number generator