*Non-Experimental Designs - Are used when the researcher wishes to:•Explore events, people, situations as they naturally occur•Test relationships and differences among variables-The independent variable is not manipulated-Subjects are not randomized-There is no control group
Survey
A research design used when the researcher intends to provide a quantitative or numeric description of trends, attitudes, opinions of a population by studying a sample of that population
Intends to estimate the extent to which the different variables are related to one another
Establishes or explores relationships, associations, or interdependence between two or more variables without investigating causal reasons underlying them
It has three types: Bivariate correlational studies, prediction studies, and multiple regression prediction studies
Used to determine the quality of implementation of a project, the efficiency and effectiveness of a program, assessment of organizational processes like procedures, policies, guidelines, human resource development, etc.
Undertaken to determine whether the program or intervention achieved its goals, objectives, or outcomes; how the program's impact compares to different programs; and to better understand the process of change, what works, what doesn't, and why
The implementation of a variety of methodologies forms critical part of achieving the goal of developing a scaled-match approach, where data from different disciplines can be integrated
The carefully studied single instance is compared to general expectations of what the case would have looked like had the treatment not occurred and to other events casually observed
C) EXPERIMENT (INTERVERTION/ TREATMENT/ PROGRAM/ SERVICES)
D) X
E) O
F) OBESRVATION (POST-TEST)
One-shot case studyX is the Experiment (Intervention/ Treatment/Program/ Services) O is the Observation (Post-Test)•One group receives intervention•Then, observations/measures takenTypes of Pre-Experimental Research Designb. One-grouppretest-posttest designA single case is observed at two time points, one before the treatment and one after the treatment. Changes in the outcome of interest are presumed to be the result of the intervention or treatment. No control or comparison group is employed.Example: One group is given intervention/treatment for depression and afterwards given post-test
TYPES OF PRE-EXPERIMENTAL RESEARCH DESIGN
A) ONE GROUP PRETEST-POSTTEST DESIGN
B) EXPERIMENT (INTERVERTION/ TREATMENT/ PROGRAM/ SERVICES)
C) O
D) X
E) O
F) OBESRVATION (PRE-TEST)
G) OBESRVATION (POST-TEST)
*One group pretest-posttest design-X is the Experiment (Intervention/ Treatment/Program/ Services)-First O is the Observation (Pre-Test)-Last O is the Observation (Post-Test)•One group•Give pre-test•Give intervention•Give post-test
Types of Pre-Experimental Research Designc. Static-group comparison•A group that has experienced some treatment is compared with one that has not. Observed differences between the two groups are assumed to be a result of the treatment.Example: There are two groups. One group is given intervention/treatment for depression and the other group is not given intervention and treatment. Afterwards both groups are given post-test
Types of Pre-Experimental Research Design
A) STATIC-GROUP COMPARISON DESIGN
B) EXPERIMENT (INTERVERTION/ TREATMENT/ PROGRAM/ SERVICES)
C) X
D) O
E) O
F) OBESRVATION 1ST GROUP (POST-TEST)
G) OBESRVATION 2ND GROUP (POST-TEST)
*Static-group Comparison Design-X is the Experiment (Intervention/ Treatment/ Program/ Services)-last O beside X is the Observation 1st Group (Post-Test)-O below the last O is the Observation 2nd Group (Post-Test)•Two groups•Give intervention to one group•Give posttests to two groups
Quasi-Experimental Research Design
Used for tests of causality with sub-optimal variable control; independent variables are not manipulated
1. Involves selecting groups, upon which a variable is tested, without any random pre-selection processes
2. For example, to perform an educational experiment, a class might be arbitrarily divided by alphabetical selection or by seating arrangement (Non-Equivalent Control Group Design, Time Series Design)