• Skip to primary navigation
  • Skip to main content
  • Skip to footer
Stanford Aging and Ethnogeriatrics Research Center (SAGE Center)

Stanford Aging and Ethnogeriatrics Research Center (SAGE Center)

Ace Aging

  • LinkedIn
  • Twitter
  • Home
  • About Us
  • SAGE Scientists
  • Faculty
  • Research Methods
    • Research Method Webinars
      • Moderators, Mediators and Heterogeneity
    • Research Methodology Podcasts
      • Scientific Methods
      • Pilot Studies
      • Validity and Reliability
      • Exploratory Methods
      • Bootstrap Methodology
      • P Value
      • Effect Size
      • Randomized Clinical Trials
      • Covariates
      • Mediators And Moderators
      • Proportional Hazards Model
  • Research
  • Contact Us

Research Methodology Podcasts

Bootstrap Methodology

What do you do when you have a set of observations, you don’t know what the distribution is, but you have a certain question, for example I want to test between two populations and I don’t know what the distributions in either are? What you do is, if you have let’s say 10 observations in the sample, drop one and then compute statistic, put it back, drop a second one computer statistic. At the end if your 10 observations, you have 10 what are called jackknife estimates. Each one is obtained by dropping one of the original observations. Though the jackknife method actually worked very well for a lot of cases and it was the method of choice for quite a long time, it also had some problems. It didn’t work very well with small samples and it didn’t work if you were dealing with data where there were a lot of ties. But then when we got to about the 80s, and the 90s, that’s when the bootstrap method came out. 

To learn more from Dr. Helena Kraemer listen to the podcast episode below.

Click here for more Research Methodology Podcasts

Submit your Questions here

Share this:

  • Twitter
  • Facebook
Previous Post: « P Value
Next Post: Exploratory Methods »

Ace Aging

Footer

Stanford Medicine

  • About
  • School Administration
  • Contact
  • Maps & Directions
  • Jobs

 

  • Basic Science Departments
  • Clinical Science Departments
  • Academic Programs
  • Diversity Programs

Healthcare

  • Find a physician
  • Clinical Trials
  • Patient Information
  • Contact

Related

  • Ethnogeriatrics
  • Salud (Spanish Health Site)
  • Project Respect
  •   Find People
  •   Visit Stanford
  •   Search Clinical Trials
  •   Give a Gift

Copyright © 2022 Stanford Medicine
Privacy Policy | Terms of Use