This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: What is validity? How does it relate to reliability? What will be an ideal ... (Read 61 times)

imanialler

  • Hero Member
  • *****
  • Posts: 539
on: Jun 22, 2018
What is validity? How does it relate to reliability?
 
  What will be an ideal response?

Question 2

What is reliability?
 
  What will be an ideal response?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

GCabra

  • Sr. Member
  • ****
  • Posts: 331
Reply #1 on: Jun 22, 2018
Answer to Question 1

Without reliability, you have no chance for general accuracy. Thus, reliability is a precondition for validity (i.e., accuracy). We then assume that in any good study, the instruments used have acceptable reliability and validity. If they do not, then the results cannot be trusted and are of no use to you, just as the results of the wildly swinging weight scale are of no use to you.

Answer to Question 2

Instruments must be reliable to be useful. Reliability refers to consistency. If you step on a weight scale three times within a minute, assuming you made no changes (removed no clothing, drank no water, etc.), you should have pretty consistent weight readings if your scale is reliable. If your readings swing wildly by 5 or 10 pounds each time you step on the scale, you know you have an unreliable instrument.


imanialler

  • Member
  • Posts: 539
Reply 2 on: Jun 22, 2018
Thanks for the timely response, appreciate it

bbburns21

  • Member
  • Posts: 336
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.

Did you know?

Illicit drug use costs the United States approximately $181 billion every year.

Did you know?

Approximately one in four people diagnosed with diabetes will develop foot problems. Of these, about one-third will require lower extremity amputation.

Did you know?

Aspirin is the most widely used drug in the world. It has even been recognized as such by the Guinness Book of World Records.

Did you know?

In 2012, nearly 24 milliion Americans, aged 12 and older, had abused an illicit drug, according to the National Institute on Drug Abuse (NIDA).

Four hypotheses on how populations might relate to one another along an environmental gradient. Four hypotheses on how populations might relate to one another along an environmental gradient.
Cultures Ideal Body Types Cultures Ideal Body Types
What are examples of ideal forms? What are examples of ideal forms?
Decimal Values as They Relate to the Location of the Decimal Point Decimal Values as They Relate to the Location of the Decimal Point
A very light ideal spring stretches by when it is used to hang a 135-N object. What is the ... A very light ideal spring stretches by when it is used to hang a 135-N object. What is the ...
For the circuit in Figure 1, assume ideal diodes. The peak inverse voltage is approximately For the circuit in Figure 1, assume ideal diodes. The peak inverse voltage is approximately
Video: Gastrulation: cross section of the frog

For a complete list of videos, visit our video library