Sampling Methods 0.0 / 5 ? PsychologyResearch methods and techniquesA2/A-levelAll boards Created by: lottiecoatesCreated on: 10-11-19 15:04 Types of sampling methods Random, Systematic, Stratified, Opportunity and Volunteer. (Rich sister snaps over voices) 1 of 6 Random Every member of the target pop. has a chance of being selected. Free from investigator bias but time consuming. 2 of 6 Systematic Uses a random starting point with a fixed interval. Minimises investigator bias and is time consuming. 3 of 6 Stratified Identify the types that make up the target population and create a representative sample. Most representative method. Time consuming and complex. 4 of 6 Opportunity People who are available at the time and willing to take part. Quick, cheap and easy. Introduces investigator bias. 5 of 6 Volunteer P's must themselves forward, e.g. answer an advert. Quick, cheap and easy. Introduces investigator bias. 6 of 6
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