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

Author Question: Which of the following experimental designs would have the strongest external validity? a. ... (Read 55 times)

panfilo

  • Hero Member
  • *****
  • Posts: 572
on: Jun 20, 2018
Which of the following experimental designs would have the strongest external validity?
 
  a. One-group pretest-posttest design
  b. Randomized subjects, posttest-only, control-group design
  c. Randomized subjects, pretest-posttest, control-group design
  d. Nonrandomized pretest-posttest, control-group design

Question 2

Distinguish between score validity and 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

Danny Ewald

  • Sr. Member
  • ****
  • Posts: 332
Reply #1 on: Jun 20, 2018
Answer to Question 1

B

Answer to Question 2

Validity refers to the extent to which scores on a test enable one to make meaningful and appropriate interpretations. Does the test measure what it claims to measure? Reliability refers to how consistently a test measures whatever it is purported to measure.


panfilo

  • Member
  • Posts: 572
Reply 2 on: Jun 20, 2018
Wow, this really help

mammy1697

  • Member
  • Posts: 341
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

Though newer “smart” infusion pumps are increasingly becoming more sophisticated, they cannot prevent all programming and administration errors. Health care professionals that use smart infusion pumps must still practice the rights of medication administration and have other professionals double-check all high-risk infusions.

Did you know?

Certain chemicals, after ingestion, can be converted by the body into cyanide. Most of these chemicals have been removed from the market, but some old nail polish remover, solvents, and plastics manufacturing solutions can contain these substances.

Did you know?

Cyanide works by making the human body unable to use oxygen.

Did you know?

Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.

Did you know?

Oxytocin is recommended only for pregnancies that have a medical reason for inducing labor (such as eclampsia) and is not recommended for elective procedures or for making the birthing process more convenient.

Internal and external hemmorrhoids. Internal and external hemmorrhoids.
Use an Automated External Defibrillator Use an Automated External Defibrillator
Millikan Oil-Drop Experiment – Experimental Set-Up Millikan Oil-Drop Experiment – Experimental Set-Up
External auditory meatus External auditory meatus
Development of the Eyes and Ears: External View - 28 days Embryo Development of the Eyes and Ears: External View - 28 days Embryo
LiH has an experimental dipole moment, μ = 6.00 D. If LiH were 100% ionic, the distance ... LiH has an experimental dipole moment, μ = 6.00 D. If LiH were 100% ionic, the distance ...
Video: Bone Healing Animation

For a complete list of videos, visit our video library