sampling methods

• What is the main topic of the video?

  Sampling in research methods
• Why is it important to consider who participated in a study?

  To assess if findings can be generalized
• What are the five sampling techniques discussed?

  • Random
  • Systematic
  • Stratified
  • Opportunity
  • Volunteer
• What is the definition of target population?

  All individuals in the group to study
• What is generalization in research?

  Applying results from a sample to the population
• What is a representative sample?

  A sample that reflects the larger population
• What is random sampling?

  Everyone has an equal chance of selection
• How is a random sample selected?

  Using a list and random selection methods
• What is a strength of random sampling?

  It avoids researcher bias in selection
• What is a potential weakness of random sampling?

  It may yield an unrepresentative sample
• What is systematic sampling?

  Selecting every Nth person from a list
• How does systematic sampling reduce bias?

  It removes researcher choice in selection
• What is a limitation of systematic sampling?

  It may still produce an unrepresentative sample
• What is an opportunity sample?

  Participants are selected based on availability
• What is a strength of opportunity sampling?

  It is quick and easy to obtain a sample
• What is a major drawback of opportunity sampling?

  It can lead to researcher bias in selection
• What is a volunteer sample?

  Participants select themselves to join the study
• What is a strength of volunteer sampling?

  It can reach a large number of participants
• What is a limitation of volunteer sampling?

  It may lead to volunteer bias in results
• What is stratified sampling?

  A sample that represents subgroups of the population
• How does stratified sampling work?

  Participants are randomly selected from identified strata
• What is a major advantage of stratified sampling?

  It produces a representative sample of the population
• What is a limitation of stratified sampling?

  It can be time-consuming and complex
• What does WEIRD stand for in psychology research?

  Western, Educated, Industrial, Rich, Democratic
• Why is the WEIRD sample a concern in psychology?

  It may not generalize to the global population
• What is a criticism regarding historical psychology studies?

  They often ignored or underrepresented women
• What are the strengths and weaknesses of each sampling method?

  Strengths:

  • Random: Avoids researcher bias
  • Systematic: Quick with existing lists
  • Opportunity: Fast and easy to obtain
  • Volunteer: Reaches large participant pool
  • Stratified: Representative of the population

  
  

  Weaknesses:

  • Random: May be unrepresentative
  • Systematic: Possible unrepresentative sample
  • Opportunity: Researcher bias potential
  • Volunteer: Volunteer bias present
  • Stratified: Time-consuming and complex
• What resources are available on psych boost?

  Exam tutorial videos and printable resources
• Who supports the development of the research methods unit?

  Students and teachers on Patreon
• What is the purpose of the tutorial videos mentioned?

  To provide examples and exam tips
• What is the final topic mentioned in the video?

  Experimental design in research methods