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

Author Question: Can a scale be reliable but not valid? What will be an ideal ... (Read 33 times)

dbose

  • Hero Member
  • *****
  • Posts: 597
on: Jun 21, 2018
Can a scale be reliable but not valid?
 
  What will be an ideal response?

Question 2

In a study, a researcher finds correlations of -.75 and +.35. Which one correlation is considered stronger and why?
 
  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

amanda_14

  • Sr. Member
  • ****
  • Posts: 342
Reply #1 on: Jun 21, 2018
Answer to Question 1

Answer: Yes, a scale can be reliable and thus consistently yield the same results, but at the same time it does not measure what it is supposed to measure and thus is not valid.

Answer to Question 2

Answer: The correlation with the stronger relationship is -.75. The strength is determined by the size of the number after the decimal point. The negative sign merely shows that it is a negative correlation.


dbose

  • Member
  • Posts: 597
Reply 2 on: Jun 21, 2018
Gracias!

meow1234

  • Member
  • Posts: 333
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

The first war in which wide-scale use of anesthetics occurred was the Civil War, and 80% of all wounds were in the extremities.

Did you know?

Ether was used widely for surgeries but became less popular because of its flammability and its tendency to cause vomiting. In England, it was quickly replaced by chloroform, but this agent caused many deaths and lost popularity.

Did you know?

People with alcoholism are at a much greater risk of malnutrition than are other people and usually exhibit low levels of most vitamins (especially folic acid). This is because alcohol often takes the place of 50% of their daily intake of calories, with little nutritional value contained in it.

Did you know?

Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.

Did you know?

There are more bacteria in your mouth than there are people in the world.

The Scale of Life 1 The Scale of Life 1
A trilobite fragment (T) in a thin-section of an Ordovician limestone; E=echinoderm; scale bar is 2 A trilobite fragment (T) in a thin-section of an Ordovician limestone; E=echinoderm; scale bar is 2
Flow Patterns and Large-Scale Weather: The Steering of Midlatitude Cyclones Flow Patterns and Large-Scale Weather: The Steering of Midlatitude Cyclones
Saffir-Simpson Hurricane Scale Saffir-Simpson Hurricane Scale
pH Scale - Weak Acid and their conjugate Base pH Scale - Weak Acid and their conjugate Base
GDP per Capita in the United States, 1870–2009 (Ratio Scale) GDP per Capita in the United States, 1870–2009 (Ratio Scale)
Video: Bipolar Disorder

For a complete list of videos, visit our video library