Difference between data collection and survey

Surveys are a form of data collection. Once a population has been properly defined, the researcher designs  the survey being careful to avoid bias in the questions. The researcher then decides on the method to do the survey (phone, mail, web, etc...) and how to select the participants ( self-selection, simple random sample, cluster sample, stratified sample, etc...)

Data collection is a broad category that includes surveys.Researchers recording information about an experiment are...

Surveys are a form of data collection. Once a population has been properly defined, the researcher designs  the survey being careful to avoid bias in the questions. The researcher then decides on the method to do the survey (phone, mail, web, etc...) and how to select the participants ( self-selection, simple random sample, cluster sample, stratified sample, etc...)

Data collection is a broad category that includes surveys. Researchers recording information about an experiment are collecting data. Researchers looking through archived information are collecting data. Researchers observing (whether an experiment or an obsevational study) are collecting data. Researchers recording survey results are collecting data.

In all cases, a primary concern is to avoid bias (selection bias, bias in the questions or method of collection, interpreting outliers, etc...)