You designed a randomized experiment to see if children placed in high quality d

Question

You designed a randomized experiment to see if children placed in high quality day care versus those in a control group regular day care would exhibit improved cognitive development. You concluded that there was no difference in cognitive development between the groups when in reality the high quality day care group did improve slightly more. What is happening here?

a This is a type II error

b This is a type I error

c The p value for mean differences between the groups must have been < .05

d This shows that random assignment was not successful.

Explanation / Answer

Option-A) This is a type II error. Because here we are retaining a false null hypothesis.

Related Questions

Navigate

• Browse (All)
• Browse Y
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.