Statistical Terminology 2.1.3 Making Results Meaning

What is another name for the Alternative Hypothesis?

• Null Hypothesis

• Research Hypothesis

• Confounding Hypothesis

• Control Hypothesis

What type of relationship can be tested with controlled experiments?

• Correlational Relationship

• Causal Relationship

• Confounding Relationship

• Randomized Relationship

What is a Confounding Variable?

• A variable that is always constant

• A variable that is accounted for in the design

• A variable that varies systematically with the dependent variable

• A variable that is the same as the independent variable

What is the most powerful experimental design for inferring causation?

• Cross Sectional Study

• Correlational Study

• Controlled, Randomized Experiment

• Observational Study

What does Correlation measure?

• The cause of one variable on another

• The degree of relationship between two variables

• The effect of a confounding variable

• The randomness of a variable

What type of study involves a single observation?

• Longitudinal Study

• Cross Sectional Study

• Experimental Study

• Double-Blind Study

What does Degrees of Freedom refer to in a study?

• The number of variables in a study

• The number of observations or groups minus some value

• The number of hypotheses tested

• The number of confounding variables

What is another name for the Dependent Variable?

• Independent Variable

• Control Variable

• Response Variable

• Confounding Variable

What is a Directional Alternative Hypothesis?

• A hypothesis with no specific direction

• A hypothesis that states a specific direction beforehand

• A hypothesis that is always true

• A hypothesis that is always false

In a Double-Blind Experiment, who knows the treatment allocation?

• Only the participant

• Only the researcher

• Neither the participant nor the treatment allocator

• Both the participant and the researcher