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Author Question: Which of the following statements is true if a study measures two groups on each of 27 variables, ... (Read 35 times)

nelaaney

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on: Jun 20, 2018
Which of the following statements is true if a study measures two groups on each of 27 variables, and the experimenter carries out a t test for independent means for each variable (that is, 27 t tests) using the .05 significance level?
 
  A) If any of the t tests are significant, there is clearly a difference between groups on all variables at the overall .05 level.
  B) It is not proper to carry out any t tests in this situation.
  C) The chance of a Type II error is high.
  D) The chance of at least one t test being significant is greater than 5.

Question 2

The most common way for a t test for independent means to be reported in a research article is
 
  A) t(i:29 ) < .05
  B) independentt(15 ): 30, p: significant
  C) t(independent) = 2.9, significant
  D) t(45 ) = 3.5, p< .05


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ktidd

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Reply #1 on: Jun 20, 2018
Answer to Question 1

Please could you help me with another one. Thank you

Answer to Question 2

Thank you soo much


nelaaney

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Reply 2 on: Jun 20, 2018
Great answer, keep it coming :)

ttt030911

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Reply 3 on: Yesterday
Wow, this really help

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