Sampling 6

# Sampling 6 - NEW ROOM! Effective Thursday 1/25 Lecture will...

This preview shows pages 1–11. Sign up to view the full content.

NEW ROOM! Effective Thursday 1/25 Lecture will meet in LC C6!

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
Sampling
Samples and Populations Population – the people you want to know about Americans (attitude toward President Obama) Dentists (attitude toward Trident chewing gum) Adults between 18 and 50 (how many numbers can an adult can hold in short-term memory) Sample – the people in your study 2000 Americans 100 Dentists 50 Adults

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
Population and Sample Symbols μ = mu = population mean σ = sigma = population standard deviation σ 2 population variance M = sample mean s = sample standard deviation s 2 = sample variance
Generalizability Ability to apply findings from one sample or in one context to other samples or contexts aka External Validity

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
Sampling Techniques Random sampling – every member of population has an equal chance of being selected into the study Convenience sample – using participants who are readily available
Sampling Techniques Cluster – populations into clusters; randomly select clusters Stratified – population into strata (categories); randomly select from within strata

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
Replication Duplicating results with other samples or contexts

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
Coincidence or Probability? Confirmation bias – paying
This is the end of the preview. Sign up to access the rest of the document.

## This note was uploaded on 05/26/2011 for the course PSCH 343 taught by Professor Victoriaharmon during the Spring '11 term at Ill. Chicago.

### Page1 / 23

Sampling 6 - NEW ROOM! Effective Thursday 1/25 Lecture will...

This preview shows document pages 1 - 11. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online