What does R square represent in the context of multiple regression?

a.

The sum of the correlation coefficients of the independent variables

b.

The average correlation coefficient between the independent variables

c.

The total amount of variance explained by the independent variables

d.

The reliability of the dependent variable

e.

The dependent variables standard deviation

Which of the following is a measure of dispersion?

a.

Range

b.

Median

c.

Mean

d.

Mode

e.

Average

In logistic regression, which of the following is a requirement for the dependent variable?

a.

It must be a constant

b.

It must be binary and categorical

c.

It must be reliable

d.

It must be continuous

e.

It must have three or more categories

Which of the following is a requirement for multiple regression?

a.

Categorical variables only

b.

Subjective measures only

c.

A small sample size

d.

Objective measures only

e.

Absence of multicollinearity between variables

Which of the following research designs is required to identify causal relationships?

a.

Questionnaire

b.

Qualitative

c.

Experimental

d.

Cross sectional

e.

Case Study

What do we call an experimental research design without random assignment to groups?

a.

Partially experimental

b.

Faux experimental

c.

Quasi-experimental

d.

Experimental

e.

Part-experimental

Which of the following can be used to minimise the impact of extraneous variables in research?

a.

Avoid using a control group

b.

Allowing researchers to assign participants to groups

c.

Usually naturally formed groups

d.

Avoid using experimental groups

e.

Random assignment to groups

Which of the following is a major disadvantage of longitudinal research compared to cross sectional?

a.

Longitudinal research cannot be done online

b.

Longitudinal research is often less informative

c.

Longitudinal research cannot measure differences

d.

Longitudinal research cannot measure associations

e.

Longitudinal research is often more expensive

Which of the following is a type of meta-analysis?

a.

Sampling

b.

Categorical

c.

Dimensional

d.

Qualitative

e.

Fixed-effect

How do we define a "Hypothesis"?

a.

A body of evidence which describes a phenomenon

b.

The extent in which we can measure causal relationships

c.

A precise statement about what we expect to find in the research

d.

The adequacy of an experimental research design

e.

An estimation of the likely sample size

Under what circumstance would you use the chi-square statistic?

a.

To test for differences in association

b.

To measure the association between variables

c.

To measure the differences in skew

d.

To predict the likelihood of binary outcomes

e.

To test for differences in proportion

When testing the difference between means, which statistic is appropriate if your independent variable has five levels?

a.

ANOVA

b.

Correlation

c.

Standard deviation

d.

t-test

e.

Chi Square

When conducting a t-test, and your p-value is shown to be 0.07, what does this suggest?

a.

There is a large difference in means

b.

The two means are identical

c.

The difference in means is small

d.

There are statistically significant differences in means

e.

There are no significant differences between means