Quantitative Research Methods Quiz

Control, randomization, observation, and manipulation

Manipulation, observation, randomization, and selection

Selection, control, random assignment, and observation

Manipulation, control, random assignment, and random selection (correct)

To describe and observe natural phenomena

To establish cause-and-effect relationships among the variables of the study (correct)

To identify correlations between variables

To predict future outcomes based on past data

Observational studies with no experimental manipulation

Studies with only one variable under investigation

Studies with multiple independent variables and one dependent variable

Studies with at least one independent variable that is experimentally manipulated and with at least one dependent or outcome variable (correct)

<p>Factors that can be manipulated and measured</p> Signup and view all the answers

<p>To minimize the influence of extraneous variables on the dependent variable</p> Signup and view all the answers