Jason wanted to study the effect of drinking on test performance. He assigned one group of people to have a beer before writing a test and another group to have a glass of water before writing the same test. When Jason analyzed his data, he found his results were significant at an ? level of 5%. What does this mean?
A. The probability that the groups are different is less than 5%.
B. The probability that the groups are the same is less than 5%.
C. Jason fails to reject the null hypothesis.
D. There was a large effect between the two groups.
B. The probability that the groups are the same is less than 5%.
You might also like to view...
Which tool within the Management component clarifies the roles, functions, expectations, and priorities of all activities in the CSCP?
a. Advisory Council b. Calendars c. Annual Agreement d. School Data Profile
Identify the independent and dependent variable(s) in this statement: “The primary purpose of the present study was to test a new strategy for treating burnout and to compare it to the traditional strategy normally used in rehabilitation for burnout in Finland. We analyzed the short-term and long-term effects of both interventions on the outcome variables (burnout symptoms and perceived job conditions) over an intervention lasting one year.”
What will be an ideal response?
Which of the following is a developmentally precipitated crisis?
a. Hurricane Katrina b. graduating from high school c. being raped d. losing a close friend in a car accident
Among the two types of between-groups designs, it is easier to protect the confidentiality of responses of the participants in the posttest-only control group design
Indicate whether the statement is true or false