i need help with grad school statistics homework!

1. t-test of independent means-Determining whether the observed difference between the means of two groups on variable x is statistically significant. Only used when there is no relationship between the two sets of scores.

• Hypothesis

• Scale of Measurement

• Population

• Sample

• Sampling methods and explanation

• Type of variable (e.g. continuous, non-continuous, dichotomous)

• Independent variables

• Dependent variables

2. t-test dependent means-Determining whether the observed difference between the mans of two groups on variable x is statistically significant. Only used when there is a relation ship between the two sets of scores.

• Hypothesis

• Scale of Measurement

• Population

• Sample

• Sampling methods and explanation

• Type of variable (e.g. continuous, non-continuous, dichotomous)

• Independent variables

• Dependent variables

3. Correlation-A mathematical expression of the directions and magnitude of the relationship between two measures that yield continuous scores.

• Hypothesis

• Scale of Measurement

• Population

• Sample

• Sampling methods and explanation

• Type of variable (e.g. continuous, non-continuous, dichotomous)

• Independent variables

• Dependent variables