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Author Question: Which of the following experimental designs would have the strongest external validity? a. ... (Read 96 times)

panfilo

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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?


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Danny Ewald

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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

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Reply 2 on: Jun 20, 2018
Thanks for the timely response, appreciate it

parker125

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Reply 3 on: Yesterday
Gracias!

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