Doing Developmental Research
- Measurement in Human Development
- Systematic observation involves watching people and recording what they do in a natural setting, naturalistic observation, or in a setting created by the researcher for structured observation.
- Sampling behavior with tasks is used when a behavior cannot be observed directly. A task is created to sample the behavior of interest.
- Self-reports are people’s answers to questions about the topic of interest.
- Physiological measures involve measuring people’s physiological responses, such as heart rate, cortisol levels, and brain activity, to focus on a particular aspect of a person’s behavior.
- Reliability and validity refer to the extent to which a measure provides a consistent index of a characteristic (reliability) and whether it really measures what we think it measures (validity).
- Representative sampling must reflect the characteristics of the population of interest.