Quiz 7 Prep Session PSY 3000

Which t-test is used to estimate whether a certain sample statistic came from a particular population?

• Independent samples t-test

• One sample t-test

• triple sample t-test

• Paired samples t-test

What t-test is used to measured between-subjects?

• Independent samples t-test

• Paired samples t-test

• One-sample t-test

• triple sample t-test

What t-test is used to measure repeated measure design?

• Paired samples t-test

• Independent samples t-test

• One sample t-test

• Triple sample t-test

What is the correct order of steps for hypothesis testing?

• State the hypotheses about the population, Set the criteria for making a decision about accepting or rejecting your hypothesis, Make a decision, Collect data and compute sample statistics

• •Make a decision, Collect data and compute sample statistics,Set the criteria for making a decision about accepting or rejecting your hypothesis, State the hypotheses about the population

• Set the criteria for making a decision about accepting or rejecting your hypothesis, State the hypotheses about the population,Collect data and compute sample statistics, Make a decision

• State the hypotheses about the population, Set the criteria for making a decision about accepting or rejecting your hypothesis, Collect data and compute sample statistics, Make a decision

True or False: The Null hypothesis predicts that the IV will have NO effect on the DV for the population, whereas alternative hypothesis predicts that the IV WILL have an effect on the DV for the population

• True

• False

How is the Null hypothesis represented?

• H(0)

• H(1)

• H(2)

• H(3)

How is the alternative hypothesis represented?

• H(0)

• H(1)

• H(2)

• H(3)

Suppose you want to study the effects of an SAT preparation course on SAT scores. A sample of 25 students were put into GROUP A that held the preparation course and then took the SAT, while 25 other students were put into GROUP B, who took the SAT without the preparation course Then the mean scores are compared. How would you write out the null and alternative hypothesis?

• •H0: •µ(d)= 0 Alternative: H1: •µ(d) =/= 0

• •H0: •µ= 100. Alternative: H1: •µ=/= 100

• •Null: H0: •µ1=•µ2, Alternative H1:•µ1 =/= u2

• None of the above

Suppose you want to examine elementary students reading scores. Do the elementary school students have an average reading score different than the population standard score of 79? How would you write the null & alternative hypothesis?

• •H0: u= 79. Alternative: H1: u=/= 79

• •H0: u(d)= 0. Alternative: H1: u (d) =/= 0

• •Null: H0: u1=u2, Alternative H1:u1 =/= u2

• None of the above

A ____________ is used with directional hypotheses, and a ___________ is used with non-directional hypotheses.

• Two tailed test, one tailed test.

• one tailed test, three tailed test.

• one tailed test, two tailed test.

• Two tailed test, three tailed test