1. Ethics – Moral principles that govern researcher’s behavior.
Institutional Review Board – A review panel whose purpose is to make sure researchers follow ethical
guidelines. IRB’s must approve all study design plans.
Informed Consent – ensures that research participants are aware of the risks involved in a particular
treatment.
Primary data – data you collect as part of your study.
Secondary data – data collected by someone else and available to the researcher.
Margin of error – a statistic that expresses the amount of possible error in a study’s results.
Census – when the entire population of interest is included in a study.
Random – each element of the population has an equal chance of being selected.
Types of Random samples: Simple random, stratified random, systemic, cluster.
Nonrandom sample: convenience