P-Value
T-Test
Chi-Square Goodness of Fit
Chi-Square Test of Independence
Correlation
100

Before we look at the p-value, we must look at the alpha. What is the standard alpha level?

.05

100

What is a one-sample T-test doing?

Comparing a sample mean to a known population mean

100

Is Chi-Square Goodness of Fit bivariate or univariate?

Univariate

100

Is the Chi-Square Test of Independence bivariate or univariate?

Bivariate

100

What is the purpose of a Correlation analysis testing?

- measures the association (strength) of the relationship between 2 variables

- measures the linear relationship between 2 variables ONLY (IV and DV)

200

What is the purpose of the p-value?

- to tell us the significance level

- to make a decision

200

What is an independent sample t-test doing?

Comparing means from two independent groups

Looking for a relationship between two variables

200

What is the purpose of the Chi-Square Goodness of Fit test?

- used to test and compare the frequencies (categories/levels) within one variable

200

What are keywords to remind us of when to use/look for a Chi-Square Test of Independence? 

- Nominal/Qualitative
- 2 variables with multiple levels
- Relationship

200

What is the number that indicates a strong positive linear relationship? a strong negative linear relationship? 

+1 and -1

300

If P is ≤ alpha, _______, ________.

If P is ≤ alpha, significant, reject null hypothesis.

300

What is a dependent sample t-test doing?

Comparing mean scores within the same group

300

Within the Chi-Square Goodness of Fit test, what kind of variable is used? How many levels?

1 Quantitative (nominal/categorical) variable with multiple levels
300

Do both variables have to be qualitative to be considered a Chi-Square Test of Independence?

Yes.

300

What kind of graph does a Correlation use?

Scatterplot

400

If P is ≥ alpha, _______, _________.

If P is ≥ alpha, not significant, fail to reject null hypothesis.

400

What are the three types of dependent samples?

Paired, related, matched

400

What are some keywords to remind us of when to use/look for Chi-Square Goodness of Fit?

- Nominal/Qualitative
- 1 variable multiple levels (frequencies/categories)

400

What is the purpose of the Chi-Square Test of Independence?

- Used to test the relationship between 2 qualitative (nominal/categorical) variables with multiple levels

400

What are keywords to remind us of when to use/look for a Correlation testing?

- relationship
- bivariate
- scale
- correlate, related

500

If P is .001 and alpha is .05, what do we do?

P (.001) ≤ alpha (.05)

Reject the null hypothesis.

500

Which t-test is this?

Researchers want to test a new anti-hunger weight loss pill. They have 10 people rate their hunger both before and after taking the pill. 

Dependent (paired) sample t-test

500

Q: Are there more Pugs at the dog park than Chihuahuas, or Schnauzers?

What is the variable? How many levels?

Variable: Dog breeds

Levels: 3

500

Q: Do psychology majors and biology majors do the same activities of going to the park, going for a swim, and going out to eat?

What are the variables? How many levels to the variables?

IV: Majors
levels: 2- psychology and biology

DV: types of activities
levels: 3- going to the park, going for a swim, and going out to eat


500

Describe a positive correlation and a negative correlation. 

Positive correlation: as one variable goes up the other also goes up. as one variable goes down the other also goes down (same behavior)

Negative correlation: as one variable goes up the other goes down (opposites)