Question

Researchers study the relationship between interpersonal violence and health in college age women. The researchers examined the average score on a psychological distress scale and compared the score for abused versus non abused women. If the researchers report a statistically significant difference and are incorrect about this conclusion what type of error could it be?

(2pts)

Question 14 - Researchers study the relationship between interpersonal violence and health in college age women. The researchers examined the average score on a psychological distress scale and compared the score for abused versus non abused women. If the researchers report a statistically significant difference and are incorrect about this conclusion what type of error could it be?

Select A clinical error as your answer	A clinical error
Select A type II error as your answer	A type II error
Select A type I error as your answer	A type I error
Select An error of omission as your answer	An error of omission

Answer 1

Researchers study the relationship between interpersonal violence and health in college age women.

The researchers examined the average score on a psychological distress scale and compared the score for abused versus non abused women.

Null hypothesis : average score on a psychological distress scale for abused women = average score on a psychological distress scale for non abused women ( the means are equal )

Alternate hypothesis : average score on a psychological distress scale for abused women != average score on a psychological distress scale for non abused women ( the means are not equal )

researchers report a statistically significant difference : She rejected the null hypothesis

are incorrect about this conclusion : hence, the two mean are equal

the kind of error she made is : Rejection of null hypothesis when it is true.

P[ type I error ] = P[ rejecting null hypothesis | null hypothesis is true ]

Hence, she is making type I error.