chapter 10

Question 1

Repeated Measures Design

Answer 1

• AKA Within Subjects Design
• Same participants in each condition
  ex- THC pill vs. Placebo pill in AIDS patients

Question 2

Independent Measures Design

Answer 2

• AKA Between Measures Design
• Different individuals in each group
  ex- Lecture-based class vs. Media-based class

Question 3

Null Hypothesis

Answer 3

• H0
• The independent variable has no effect on the dependent variable
• There is no relationship between X and Y

Question 4

Alternative Hypothesis

Answer 4

• H1
• The independent variable has an effect on the dependent variable
• There is a relationship between X and Y

Question 5

Directional

Answer 5

• Specifies Direction
• Increase or does not increase

Question 6

Nondirectional

Answer 6

• Talks about effect
• Affects or does not affect

Question 7

The Alpha Level

Answer 7

Creating a criteria we will use to accept or reject the NULL hypothesis

Question 8

The alpha is set only on ONE side of the probability distribution in a _______ test and is called a ______

Answer 8

• Directional
• One-tailed test

Question 9

The alpha is set only on BOTH sides of the probability distribution in a _______ test and is called a ______

Answer 9

• Nondirectional
• Two-tailed test

Question 10

Decision Rule-
If obtained probability is < alpha

Answer 10

REJECT NULL

Question 11

Decision Rule-
If obtained probability is > alpha

Answer 11

RETAIN NULL

Question 12

What is P-Value

Answer 12

‘probability value’; it
indicates how likely it is that a result occurred
by chance alone.

Question 13

Type I Error

Answer 13

Null Hypothesis is correct but it is rejected.

Question 14

Type II Error

Answer 14

Null Hypothesis is false but it is retained.

Question 15

Steps of statistical hypothesis

Answer 15

1. State the null and alternative hypotheses
2. Set alpha
3. Compute the test statistic
4. Make a decision