Describe systematic observation and discuss methodological issues, such as the use of equipment, reactivity, reliability, and sampling.
- Systematic observation: careful observation of one or more specific behaviors in a particular setting.
- Equipment: Directly observe behavior and code it at the same time
- -ex: video recording, clipboard, stopwatch
- Reactivity: Possibility that the presence of the observer will affect people's behaviors
- Reliability: A measurement reflects true score rather than measurement error
- Sampling: Samples of behavior taken over an extended period provide more accurate and useful data than single, short observations.