EXPERIMENTAL RESEARCH

It is a type of research where the researcher manipulates one variable while controlling the rest of the variables.

It is usually conducted to explain causation/ cause and effect between variables.

Definition:

Manipulation of one or more independent variables

>independent variable(treatment)>dependent variable (outcome)

Control over extraneous variables Observation – effect of manipulation of IV to

DV

Defining Characteristics of Experimental Research

1. Identify and define the problem. Formulate hypotheses and deduce their consequences. Construct an experimental design that represents all the elements, conditions, and relations of the consequences. 1. Select sample of subjects.

2. Group or pair subjects. 3. Identify and control non experimental

factors.

Steps in Experimental study

4. Select or construct, and validate instruments to measure outcomes.

5. Conduct pilot study. 6. Determine place, time, and duration of the experiment.

Conduct the experiment. Compile raw data and reduce to usable form. Apply an appropriate test of significance.

Pre –experimental Designs

Quasi Experimental designs

True Experimental