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Author Question: If the hypothesis is a one-tailed hypothesis, how can the experimenter determine whether the results ... (Read 52 times)

danielfitts88

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on: Jun 19, 2018
If the hypothesis is a one-tailed hypothesis, how can the experimenter determine whether the results are in the correct direction for a pretest posttest design? The experimenter checks the _____.
 
  a. absolute value of the obtained t c. pretest and posttest means
  b. sign of the obtained t d. all of these

Question 2

In order to find the critical value of t in the table, we need to know _____.
 
  a. whether the hypothesis is one-tailed or two-tailed
  b. alpha
  c. the degrees of freedom
  d. all of these


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kswal303

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Reply #1 on: Jun 19, 2018
Answer to Question 1

C
If the larger mean corresponds to the mean that was predicted to be larger, then the result is in the correct direction. The value of related t is always positive

Answer to Question 2

D
The critical value of t depends of all of these things, whether the design is an independent groups design or a repeated measures design.


danielfitts88

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Reply 2 on: Jun 19, 2018
Great answer, keep it coming :)

scikid

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Reply 3 on: Yesterday
Excellent

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