Which of the following defines characteristics with more than one attribute or value that can be observed or manipulated?

Which of the following defines characteristics with more than one attribute or value that can be observed or manipulated?

a.Research question.

b.Hypothesis.

c.Variables of interest.

d.Research design.

 

Question 2

A piece of work that is considered the original report of research providing firsthand information or is the first published account is known as a:

a.Database.

b.Scholarly journal.

c.Secondary source.

d.Primary source.

 

Question 3

When studying the effect of maternal alcohol use and disruptive behavior in children, maternal alcohol use is likely:

a.A manipulated variable.

b.A selected variable.

c.Unrelated to the child’s disruptive behavior.

d.Controlled by the researcher.

 

Question 4

A form of bias that allows a typically irrelevant trait to influence perceptions of another, typically more relevant, trait is known as:

a.Halo effect.

b.Hawthorne effect.

c.John Henry effect.

d.Experimenter effect.

 

Question 5

An equal likelihood that a participant will be assigned to at treatment, control, or comparison groups is known as:

a.Equal sampling.

b.Pre-experimental design.

c.Experimental design.

d.Random assignment.

 

Question 6

The extent to which a study can be generalized to other settings and populations is:

Internal validity.

External validity.

Construct validity.

Content validity.

 

Question 7

The effect of the independent variable on the dependent variable is based upon the examination of group differences in:

a.All research designs.

b.Between group designs.

c.Qualitative designs.

d.Within groups designs.

 

Question 8

A researcher must be concerned with the significance level of the correlation coefficient because:

a.Research reports require that significance exist in order to be published.

b.It is a measure of the validity of the relationship.

c.It tells the researcher how likely it is that the computed correlation value is due to chance or sampling error.

d.It determines the feasibility for the study.

 

Question 9

The most commonly used correlation coefficient that is used when the data is quantitative and has a linear relationship is known as a:

a.Spearman Rho correlation coefficient.

b.Phi coefficient.

c.Pearson product moment correlation coefficient.

d.Point biserial correlation coefficient.