Reliability vs. Validity - PowerPoint PPT Presentation

Loading...

PPT – Reliability vs. Validity PowerPoint presentation | free to download - id: 6f8718-NzQwM



Loading


The Adobe Flash plugin is needed to view this content

Get the plugin now

View by Category
About This Presentation
Title:

Reliability vs. Validity

Description:

Reliability vs. Validity Reliable means you will get the same results repeatedly. Relaibility can be increased with MORE TRIALS Remember R for Reliability and ... – PowerPoint PPT presentation

Number of Views:34
Avg rating:3.0/5.0
Slides: 4
Provided by: calt154
Category:

less

Write a Comment
User Comments (0)
Transcript and Presenter's Notes

Title: Reliability vs. Validity


1
Reliability vs. Validity
  • Reliable means you will get the same results
    repeatedly.
  • Relaibility can be increased with MORE TRIALS
  • Remember R for Reliability and Repeated
  • Valid means accurate or on the money. The
    measurement taken matches the actual amount.
  • - Validity is increased by
  • Adding more controlled variables
  • Improving measuring technique
  • Including more conditions

2
These targets show one way to interpret
reliability vs. validity. Draw/label them under
your notes!
3
  • EXAMPLE Someone who is 150 pounds gets on a
    scale five times.
  • If the scale reads 100, 125, 150, 175 and
    200
  • it is not reliable - numbers are not consistent
  • If the scale reads 100 each of the five times
  • it is reliable, but not valid - numbers are
    consistent, but not accurate
  • If the scale reads 150 each of the five times
  • it is reliable AND valid - numbers are
    consistent AND accurate
About PowerShow.com