Quantitative Research Process

PCU-MJCN Class 2012

Descriptive

Corr elational Quasi-experimental Experimental

Exploration and description of  phenomena in r eal-lif e situations Provides an accurate account of  characteristics of particular individuals, situation, or groups

Discover new meaning

Describe what exists Determine the fr equency with which something occurs

Categorize information

Description of concepts

Identification of r elationships Development of hypoth eses that provide a basis for futur e quantitative r esearch

Describing the spr ead of bird flu and its potential influence on global health

CORRELATIONAL RESEARCH

Involves the systematic investigation of r elationships between or among variables

T he

To

explain the natur e of  r elationships in the r eal world, not to determine the cause and eff ect.

means for  generating hypotheses to guide quasiexperimental and experimental studies that do focus on causeand-eff ect r elationships.

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Relationship

between the minutes of exercise per  day, types of food consumed, and childr en¶s weight.

QUASI-EXPERIMENTAL RESEARCH To

examine causal r elationships or to determine the eff ect of one variable on another.

Involves implementing a tr eatment and examining the eff ects of this tr eatment using selected methods of  measur ement.

To

determine the degr ee or  str ength and type of  r elationships between two variables



-1 indicates that the variables

vary in opposite dir ections  +1 indicates that the variables vary together, both variables either incr ease or decr ease together   0 indicating no r elationship

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Determining the eff ectiveness of tr eatments such as herbal medicines on the health of patients and families

EXPERIMENTAL RESEARCH

 An

objective, systematic, highly controlled investigation for the purpose of pr edicting and controlling phenomena in nursing practice.

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Basic Research ±

seeks new knowledge Applied Research ± conducted to generate knowledge to influence practice Rigor ± is th e striving for excellence in r esearch, and it r equir es discipline, adher ence to details, and strict accuracy Control ± imposing of rules to decr ease the possibility of error 

Problem definition

 Setting 

Data collection

goals Identifying solutions Plan

Implementation

Evaluation and r evision

 Assessment  

Data collection Data interpr etation

Nursing

Evaluation / Modification

Diagnosis

Plan Implementation

S tating Goals  Planned

intervention

Knowledge

of  Nursing World  Clinical

experiences

 Literatur e r eview

Problem and purpose identification

Outcomes, findings

Methodology  Design

Implementation

 Sample  Measur ement

methods collection  Data analysis  Data

Research

problem and purpose

1 Literatur e

r eview

2 Study

Framewor k

3 Research

objectives, questions, or hypotheses

4 Study

variables

 Assumptions

5

Limitations 6

Research

design

7

Population and sample 8

Methods of measur ement

Data collection

9 Data analyses 10

Research

outcomes 11

Dissemination for evidence-based practice

To

help nurses assess patients and to evaluate the car e that they r eceive

Provide the means to measur e single concepts or their  r elationships Identifying tr ends and patterns Helps in policy decisions For emphasizing evidence-based practice

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Empirical observation limit understanding of  human phenomena Charges of µscientism¶ ± the belief that only scientific method can produce ³hard evidence´ worthy to be called science and that other ways of  producing knowledge ar e inf erior