Page 49 - Exhibit No. 3 Copies of Instructional Materials Actually Used

a. True experiment
An inquiry that consider four properties of
experimental research, namely:
• Manipulation
• The researchers subjects the
respondents of the study to a
particular situation

• Control

• The researcher imposes certain
conditions over the experimental
situation.

• Randomization
• The researcher assigns subjects to a
control or experimental group on
random basis, which means that every
subject has an equal chance of being
assigned to any group.

• Validity
• In experimental studies and similar
types of studies, the researcher is
interested in controlling extraneous
variables that may create spurious
results or findings.

Types or True Experimental Designs

1. Basic Experiment
• The post-test only design
➢ This refers to the randomization and
experimental treatment of the subjects
that were completed, followed by a
post test on the performance of the
subjects on certain variables.
• The pre-test and post-test design
➢ This refers to the pre-test and post-
test conducted before and after the
experimental treatment was done to the
control and experimental group.

2. Solomon Four Group Design
➢ This involves two control groups and two
experimental groups. One control and

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Nursing Research I