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 RESEARCH DESIGN IS A PLAN OF HOW, WHEN
AND WHERE DATA ARE TO BE COLLECTED AND
ANALYZED.
 RESEARCH DESIGN IS THE RESEARCH’S OVERALL
PLAN FOR ANSWERING THE RESEARCH
QUESTIONS OR TESTING THE RESEARCH
HYPOTHESE.
 IT IS THE MASTER PLAN SPECIFYING THE
METHODS AND PROCEDURES FOR COLLECTING
AND ANALYZING THE NEEDED INFORMATION IN
A RESEARCH STUDY.
 .
ELEMENTS
OF
RESEARCH
DESIGN
THE APPROCH
METHOD
OF DATA
ANALYSIS POPULATION,
SAMPLE AND
SAMPLING
TECHNIQUE
TOOLS AND
METHODS OF
DATA
COLLECTION
TIMES AND PLACE OF
DATA COLLECTION
QUALITATIVE
QUANTITATIVE
OR BOTH
WITH/WITH
OUT A
CONCEPTUA
L FRAME
WORK
 IT INVOLVES THE DESCRIPTION OF THE PLAN TO
INVETIGATE THE PHENOMENON UNDER STUDY
IN A STRUCTURED(QUANTITATIVE),
UNSTRUCTURED(QUALITATIVE) OR A
COMBINATION OF THE TWO METHODS
(QUALITATIVE&QUANTITATIVE).
 POPULATION, SAMPLE, AND SAMPLING
TECHNIQUE.
 THE TIME, PLACE, AND SOURCES OF DATA
COLLECTION.
 TOOLS AND METHODS OF DATA COLLECTION.
 METHODS OF THE DATA ANALYSIS.
 THE SELECTION OF A RESEARCH DESIGN
LARGELY DEPENDS ON THE NATURE OF THE
RESEARCH PROBLEM, THE RESEARCH AVAILABLE,
ACCESSIBLE OF SUBJECTS, AND RESEARCH
ETHICS.
 NATURE OF THE RESEARCH PROBLEM
 PURPOSE OF THE STUDY
 RESEARCH’S KNOWLEDGE AND EXPERIENCE
 RESEARCHER’S INTEREST AND MOTIVATION
 RESEARCH ETHICS AND PRINCIPLES
 SUBJECTS/PARTICIPANTS
 RESOURCES
 TIME
 POSSIBLE CONTROL ON EXTRANEOUS VARIABLES
 USERS OF THE STUDY FINDINGS
 THERE ARE TWO IMPORTANT CRITERIA FOR
EVALUATING THE CREDIBILITY AND
DEPENDABILITY OF THE RESEARCH RESULTS
 INTERNAL VALIDITY
 EXTERNAL VALIDITY
 CAMPBELL AND STANLEY USED THE TERM
INTERNAL VALIDITY TO REFER TO THE EXTENT
TO WHICH IT IS POSSIBLE TO MAKE AN
INFERENCE THAT THE INDEPENDENT VARIABLE
IS TRULY INFLUENCING THE DEPENDENT
VARIABLE.
EXTERNAL VALIDITY EXPLORES THE
GENERALIZATION BEYOND SPECIFIC
EXPERIMENT’S TO CHECK IF THE RESULT AND
FINDING COME OUT TO BE SAME WITH OTHER
SETTING OR WITH OTHER SUBJECT
POPULATION, BUT RELATED VARIABLES.
 QUANTITATIVE RESEARCH DESIGN
 QUALITATITIVE RESEARCH DESIGN
1. EXPERIMENTAL RESEARCH DESIGN
2. NON EXPERIMENTAL RESEARCH DESIGN
3. OTHER ADDITIONAL RESEARCH DESIGN
EXPERIMENTA
LRESEARCH
DESIGN
TRUE
EXPERIMENTAL
DESIGN
QUASI-
EXPERIMENTAL
DESIGN
PRE-
EXPERIMENTAL
DESIGN
 ACCORDING TO RILEY, EXPRIMENTAL
RESEARCH DESIGN IS A POWERFUL DESIGN FOR
TESTING HYPOTHSESE OF CAUSAL
RELATIONSHIP AMONG VARIABLES.
 TRUE EXPERIMENTAL RESEARCH DESIGNS ARE
THOSE WHERE RESEARCHERS HAVE COMPLETE
CONTROL OVER THE EXTRANEOUS VARIABLES
AND CAN PERDICT CONFIDENTLY THAT THE
OBSERVED EFFECT ON THE DEPENDABLE
VARIABLE IS ONLY DUE TO THE MANIPULATION
OF THE INDEPENDENT VARIABLE.
 MANIPULATION,
 CONTROL,
 RANDOMIZATION.
TRUE
EXPERIMENTAL
DESIGN
POST-
TEST
ONLY
PRETEST
POST-
TEST
ONLY SOLOMON
4 GROUP FACTORIAL
RANDOMIZED
BLOCK
CROSSOVER
EXP.GROUP TREATMENT POST-TEST
CONTROL
GROUP
POST-TEST
EXP.GROUP
PRE
TEST
o POST-
TEST
TREATMENT
CONTROL
GROUP
PRE
TEST
o POST-
TEST
EXP.GROUP.1 PRE
TEST
TREATMENT
o POST-
TEST
CONTROL
GROUP.1
PRE
TEST
o POST-
TEST
EXP.GROUP.2 TREATMENT
EXP.GROUP.1
o POST-
TEST
CONTROL
GROUP.2
o POST-
TEST
TYPE OF
ANTIHYPERTEN
SIVE DRUGS
BLOCK
PATIENTS WITH
PRIMARY
HYPERTENSION
(I)
DIABETIC
PATIENTS WITH
HYPERTENSION
(II)
RENAL
PATIENTS WITH
HYPERTENSION
(III)
A A,I A,II A,III
B B,I B,II B,III
C C,I C,II C,III
GROUPS PROTOCOLS OF THE
MOUTH CARE
GROUP1 CHLOHEXIDINE(A1) SALINE(A2
GROUP2 SALINE(A2) CHLOHEXIDINE(A1)
 MOST POWERFUL DESIGN.
 TO ESTABILISH THE CAUSAL RELATIONSHIP
BETWEEN INDEPENDENT AND DEPENDENT
VARIABLES.
 THE PURPOSE OF RESEARCH IS
EXPLANATION,CAUSAL RELATIONSHIP MAY BE
ESTABLISHED AMONG THE VARIABLES BY
EXPERIMENTATION.
 IN THESE STUDIES THE CONTROLLED ENVIRONMENT
IN WHICH THE STUDY IS CONDUCTED CAN YIELD A
GREATER DEGREE OF PURITY IN OBSERVATION.
 A SHORT PERIOD OF TIME THAT MAY TAKE YEARS TO
OCCUR NATURALLY.
 EXPERIMENTAL RESEARCH DESIGNS CANNOT
BEREPLICATED IN STUDIES CONDUCTED ON HUMAN
BEING DUE TO ETHICAL PROBLEMS.
 MANY OF THE HUMAN VARIABLES NEITHER HAVE
VALID MESURABLE CRITERIA NOR INSTRUMENTAL TO
MESURE THEM.
 IN EXPERIMENTAL STUDIES CONDUCTED IN
NATURAL SETTING LIKE HOSPITALS OR COMMUNITY,
IT IS NOT POSSIBLE TO IMPOSE CONTROL OVER
EXTRANEOUS VARIABLES.
 IT IS VERY DIFFICLUTY TO GET COOPERATION FROM
THE STUDY PARTICIPANTS.
 IT INVOLVES THE MANIPULATION OF
INDEPENDENT VARIABLE TO OBSERVE THE
EFFECT ON DEPENDENT VARIABLE.
•LACK OF AT LEAST ONE OF THE TWO OTHER
ESSENTIAL CHARACTERISTICS OF THE TRUE
EXPERIMENT.
•QUASI- INDEPENDENT VARIABLES ARE USED
INSTEAD OF TRUE INDEPENDENT VARIABLES.
 NON RANDOMIZED CONTROL GROUP DESIGN
EXP.GROUP PRE
TEST
TREATMENT
o POST-
TEST
CONTROL
GROUP
PRE
TEST
o POST-
TEST
 EXP.GROUP O1 O2 O3 TREATMENT
O1O2O3
 THEY ARE MORE PRACTICAL AND FEASIBLE TO
CONDUCT RESEARCH STUDIES IN NURSING.
 IN THE ABSENCE OF A LARGE SAMPLE SIZE,
RANDOMIZATION AND/OR AVAILALABILITY OF
CONTROL GROUP ARE NOT ALWAYS POSSIBLE.
 IT MAY BE ABLE TO ESTABLISH CAUSAL
RELATIONSHIP, WHEREIN SOME OF THE
HYPOTHESES ARE PRACTICALLY ANSWERED
THROUGH THIS DESIGN ONLY.
 THERE IS NO CONTROL OVER EXTRANEOUS
VARIABLES INFLUENCING THE DEPENDENT
VARIABLES.
 THE ABSENCE OF A CONTROL GROUP OR A LACK
OF CONTROL OVER THE RESEARCH SETTING
MAKES THE RESULT OF THIS DESIGN LESS
RELIABLE AND WEAK FOR THE ESTABILISHMENT
OF CASUAL RELATIONSHIP BETWEEN
INDEPENDENT AND DEPENDENT VARIABLES.
 THIS RESEARCH DESIGN IS CONSIDERED VERY
WEAK, BECAUSE THE RESEARCH HAS VERY
LITTLE CONTROL OVER THE EXPERIMENT.
 ONE SHOT CASE DESIGN;
EXP.GROUP TREATMENT o POST-TEST
•ONE- GROUP PRETEST-
POSTTEST DESIGN;
EXP.GROUP TREATMENT
o POST-
TEST
PRE
TEST
 VERY SIMPLE AND CONVENIENT TO CONDUCT
THESE STUDIES IN NATURAL SETTING,
ESPECIALLY IN NURSING.
 MOST SUITABLE DESIGN FOR THE BEGINNERS IN
THE FIELD OF EXPERIMENTAL RESEARCH.
 IT HAS VERY LITTLE CONTROL OVER THE
RESEARCH.
 IT HAS A HIGHER THREAT TO INTERNAL
VALIDITY OF RESEARCH .
 IT IS ONE OF THE BROAD CATEGORIES OF
RESEARCH DESIGNS, IN WHICH THE RESEARCH
OBSERVES THE PHENOMENA AS THEY OCCUR
NATURALLY, AND NO EXTERNAL VARIABLES ARE
INTRODUCED.
 THE INDEPENDENT VARIABLES CANNOT BE
MANIPULATED.
 IT IS UNETHICAL TO MANIPULATE THE
INDEPENDENT VARIABLE.
 THE RESEARCH SITUATIONS WHERE IT IS NOT
PRACTICALLY POSSIBLE TO CONDUCT
EXPERIMENTS.
 DESCRIPTIVE-TYPE STUDIES THAT DO NOT
REQUIRE ANY EXPERIMENTAL APPROACHES.
 DESCRIPTIVE DESIGN
 UNIVARIANT DESCRIPTIVE DESIGN
 EXPLORATORY DESCRIPTIVE DESIGN
 COMPARATIVE DESCRIPTIVE DESIGN
 CORRELATION/EX-POST FACTO DESIGN
 PROSPECTIVE DESIGN
 RETROSPECTIVE DESIGN
 DEVELOPMENTAL RESEARCH DESIGN
 CROSS-SECTIONAL DESIGN
 LONGITUDINAL DESIGN
 EPIDEMIOLOGICAL DESIGNS
 CASE- CONTROL STUDIES
 COHORT STUDIES
 SURVEY RESEARCH DESIGN
 IT IS USED TO OBSERVE, DESCRIBE, AND
DOCUMENT ASPECT OF A SITUATION AS IT
NATURALLY OCCURS, AND SOMETIMES TO SERVE
AS A STARTING POINT FOR HYPOTHESIS
GENERATION OR THEORY DEVELOPMENT.
 USED TO OBSERVE, DOCUMENT,AND DESCRIBE A
PHENOMENON OCCURING IN NATURAL
SETTING.
 TO GAIN MORE INFORMATION ABOUT
CHARACTERISTICS WITHIN A PARTICULAR FIELD
OF INQUIRY.
 USED TO DEVELOP THEORIES, IDENTIFY
PROBLEMS WWITH CURRENT PRACTIS, MAKE
JUDGEMENTS, OR DETERMINE OTHER PRACTICES
IN SIMILAR SITUATIONS.
 UNIVARIANT DESCRIPTIVE DESIGN ARE
UNDERTAKEN TO DESCRIBE THE FREQUENCY OF
A PHENOMENON.
 THIS DESIGN DOES NOT FOCUS ON THE STUDY
OF A SINGLE VARIABLE; THERE MAY BE ONE OR
MORE VARIABLES INVOLVED IN THE STUDY.
IT IS USED TO IDENTIFY, EXPLORE , AND DESCRIBE
EXISITING PHENOMENON AND ITS RELATED
FACTORS.
 IT INVOLVES COMPARING AND CONTRASTING
TWO OR MORE SAMPLE OF STUDY SUBJECT ON
ONE OR MORE VARIABLES OFTEN AT A SINGLE
POINT OF TIME.
 THIS IS A NON EXPERIMENTAL DESIGN, WHERE
RESEARCHER EXAMINES THE RELATIONSHIP
BETWEEN TWO OR MORE VARIABLES IN A
NATURAL SETTING WITH OUT MANIPULATION
OF CONTROL.
 THE RESEARCHER FIND THE STRENGTH OF
RELATIONSHIP BETWEEN THE VARIABLES.
 GENERALLY IT HAS INDEPENDENT AND
DEPENDENT VARIABLES EFFECT OF
INDEPENDENT VARIABLE IS OBSERVE WITH OUT
MANIPULATING THE DEPENDENT VARIABLE.
 SOME TIMES IDENTIFICATION OF DEPENDENT
AND INDEPENDENT VARIABLE.
 IT FINDED BY USING CORRELATION AND
CO- EFFEFIENT
 HERE THE RESEARCHER RELATES THE PRESENT
TO THE FUTURE IS A PROSPECTIVE RESEARCH
DESIGN.
RETROSPECTIVE RESEARCH DESIGN
HERE THE RESEARCHER STUDIES THE CURRENT
PHENOMENON BY SEEKING INFORMATION FROM
PAST.
 IT EXAMINES THE PHENOMENON WITH
REFERANCE TO TIME.
 CROSS SECTION DESIGN
IN WHICH RESEARCHER COLLECT DATA AT
PARTICULAR TIME (ONE PERIOD OF DATA
COLLECTION) IT IS MORE CONVENIENT.
 LONGITUDINAL DESIGN
HERE THE DATACOLLECT AT LONG TIME( LONG
TIME STUDY).
IT HAS THREE TYPES;
TREND STUDIES
PANEL STUDIES
FOLLOW-UP STUDIES
 IT INVOLVES INVESTIGATE THE DISTRIBUTION
AND CAUSES OF THE DISEASES IN POPULATION.
 THE PROSPECTIVE STUDIES ARE KNOW AS
COHORT STUDY AND RETROSPETIVE STUDIES
ARE KNOW AS CASE- CONTROL STUDIES.
 COHORT STUDIES
HERE THE LONGITUDINAL APPROACH IS USED
TO INVESTICATE THE DISEASES AND CAUSES.
 CASE CONTROL STUDIES
IN THIS DESIGN, CAUSES OF A DISEASE ARE
INVESTIGATED AFTER THE OCCURRENCE OF A
DISEASE.
IF THE SURVEY IS CONDUCTED ON A SAMPLE OF
POPULATION, IT IS CALLED SAMPLE SURVEY.
IF THE ENTIRE POPULATION IS INVOVLED, IT IS
CALLED A POPULATION SURVEY SUCH AS
CENSUSES, ECT.,
 DEPENDING ON THE NATURE OF PHENOMENON
UNDER STUDY.
 BASED ON METHODS OF DATA COLLECTION.
ADVANTAGES
 IT IS A CONVENIENT
METHOD.
 SUITABLE FOR
NURSING RESEARCH.
 IT IS SIMPLE.
 LOW COST COMPARE
TO EXPERIMENT.
 THE RELATIONSHIP
BETWEEN VARIABLES
FINDING IS NEVER
CLEAR.
 IT HAS MORE ERROR
 NON RANDOMIZED
METHOD WILL
RESULTING IN ERROR.
DISADVANTAGES
 METHODOLOGICAL STUDIES
 META –ANALYSIS
 SECONDARY DATA ANALYSIS
 OUTCOME RESEARCH
 EVALUATION STUDIES
 OPERATIONAL RESEARCH
THANK YOU

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Research approaches and designs

  • 1.
  • 2.  RESEARCH DESIGN IS A PLAN OF HOW, WHEN AND WHERE DATA ARE TO BE COLLECTED AND ANALYZED.  RESEARCH DESIGN IS THE RESEARCH’S OVERALL PLAN FOR ANSWERING THE RESEARCH QUESTIONS OR TESTING THE RESEARCH HYPOTHESE.  IT IS THE MASTER PLAN SPECIFYING THE METHODS AND PROCEDURES FOR COLLECTING AND ANALYZING THE NEEDED INFORMATION IN A RESEARCH STUDY.
  • 3.  . ELEMENTS OF RESEARCH DESIGN THE APPROCH METHOD OF DATA ANALYSIS POPULATION, SAMPLE AND SAMPLING TECHNIQUE TOOLS AND METHODS OF DATA COLLECTION TIMES AND PLACE OF DATA COLLECTION QUALITATIVE QUANTITATIVE OR BOTH WITH/WITH OUT A CONCEPTUA L FRAME WORK
  • 4.  IT INVOLVES THE DESCRIPTION OF THE PLAN TO INVETIGATE THE PHENOMENON UNDER STUDY IN A STRUCTURED(QUANTITATIVE), UNSTRUCTURED(QUALITATIVE) OR A COMBINATION OF THE TWO METHODS (QUALITATIVE&QUANTITATIVE).
  • 5.  POPULATION, SAMPLE, AND SAMPLING TECHNIQUE.  THE TIME, PLACE, AND SOURCES OF DATA COLLECTION.  TOOLS AND METHODS OF DATA COLLECTION.  METHODS OF THE DATA ANALYSIS.
  • 6.  THE SELECTION OF A RESEARCH DESIGN LARGELY DEPENDS ON THE NATURE OF THE RESEARCH PROBLEM, THE RESEARCH AVAILABLE, ACCESSIBLE OF SUBJECTS, AND RESEARCH ETHICS.
  • 7.  NATURE OF THE RESEARCH PROBLEM  PURPOSE OF THE STUDY  RESEARCH’S KNOWLEDGE AND EXPERIENCE  RESEARCHER’S INTEREST AND MOTIVATION  RESEARCH ETHICS AND PRINCIPLES  SUBJECTS/PARTICIPANTS  RESOURCES  TIME  POSSIBLE CONTROL ON EXTRANEOUS VARIABLES  USERS OF THE STUDY FINDINGS
  • 8.  THERE ARE TWO IMPORTANT CRITERIA FOR EVALUATING THE CREDIBILITY AND DEPENDABILITY OF THE RESEARCH RESULTS  INTERNAL VALIDITY  EXTERNAL VALIDITY
  • 9.  CAMPBELL AND STANLEY USED THE TERM INTERNAL VALIDITY TO REFER TO THE EXTENT TO WHICH IT IS POSSIBLE TO MAKE AN INFERENCE THAT THE INDEPENDENT VARIABLE IS TRULY INFLUENCING THE DEPENDENT VARIABLE.
  • 10. EXTERNAL VALIDITY EXPLORES THE GENERALIZATION BEYOND SPECIFIC EXPERIMENT’S TO CHECK IF THE RESULT AND FINDING COME OUT TO BE SAME WITH OTHER SETTING OR WITH OTHER SUBJECT POPULATION, BUT RELATED VARIABLES.
  • 11.  QUANTITATIVE RESEARCH DESIGN  QUALITATITIVE RESEARCH DESIGN
  • 12. 1. EXPERIMENTAL RESEARCH DESIGN 2. NON EXPERIMENTAL RESEARCH DESIGN 3. OTHER ADDITIONAL RESEARCH DESIGN
  • 14.  ACCORDING TO RILEY, EXPRIMENTAL RESEARCH DESIGN IS A POWERFUL DESIGN FOR TESTING HYPOTHSESE OF CAUSAL RELATIONSHIP AMONG VARIABLES.
  • 15.  TRUE EXPERIMENTAL RESEARCH DESIGNS ARE THOSE WHERE RESEARCHERS HAVE COMPLETE CONTROL OVER THE EXTRANEOUS VARIABLES AND CAN PERDICT CONFIDENTLY THAT THE OBSERVED EFFECT ON THE DEPENDABLE VARIABLE IS ONLY DUE TO THE MANIPULATION OF THE INDEPENDENT VARIABLE.
  • 20. EXP.GROUP.1 PRE TEST TREATMENT o POST- TEST CONTROL GROUP.1 PRE TEST o POST- TEST EXP.GROUP.2 TREATMENT EXP.GROUP.1 o POST- TEST CONTROL GROUP.2 o POST- TEST
  • 21.
  • 22. TYPE OF ANTIHYPERTEN SIVE DRUGS BLOCK PATIENTS WITH PRIMARY HYPERTENSION (I) DIABETIC PATIENTS WITH HYPERTENSION (II) RENAL PATIENTS WITH HYPERTENSION (III) A A,I A,II A,III B B,I B,II B,III C C,I C,II C,III
  • 23. GROUPS PROTOCOLS OF THE MOUTH CARE GROUP1 CHLOHEXIDINE(A1) SALINE(A2 GROUP2 SALINE(A2) CHLOHEXIDINE(A1)
  • 24.  MOST POWERFUL DESIGN.  TO ESTABILISH THE CAUSAL RELATIONSHIP BETWEEN INDEPENDENT AND DEPENDENT VARIABLES.  THE PURPOSE OF RESEARCH IS EXPLANATION,CAUSAL RELATIONSHIP MAY BE ESTABLISHED AMONG THE VARIABLES BY EXPERIMENTATION.  IN THESE STUDIES THE CONTROLLED ENVIRONMENT IN WHICH THE STUDY IS CONDUCTED CAN YIELD A GREATER DEGREE OF PURITY IN OBSERVATION.  A SHORT PERIOD OF TIME THAT MAY TAKE YEARS TO OCCUR NATURALLY.
  • 25.  EXPERIMENTAL RESEARCH DESIGNS CANNOT BEREPLICATED IN STUDIES CONDUCTED ON HUMAN BEING DUE TO ETHICAL PROBLEMS.  MANY OF THE HUMAN VARIABLES NEITHER HAVE VALID MESURABLE CRITERIA NOR INSTRUMENTAL TO MESURE THEM.  IN EXPERIMENTAL STUDIES CONDUCTED IN NATURAL SETTING LIKE HOSPITALS OR COMMUNITY, IT IS NOT POSSIBLE TO IMPOSE CONTROL OVER EXTRANEOUS VARIABLES.  IT IS VERY DIFFICLUTY TO GET COOPERATION FROM THE STUDY PARTICIPANTS.
  • 26.  IT INVOLVES THE MANIPULATION OF INDEPENDENT VARIABLE TO OBSERVE THE EFFECT ON DEPENDENT VARIABLE.
  • 27. •LACK OF AT LEAST ONE OF THE TWO OTHER ESSENTIAL CHARACTERISTICS OF THE TRUE EXPERIMENT. •QUASI- INDEPENDENT VARIABLES ARE USED INSTEAD OF TRUE INDEPENDENT VARIABLES.
  • 28.  NON RANDOMIZED CONTROL GROUP DESIGN EXP.GROUP PRE TEST TREATMENT o POST- TEST CONTROL GROUP PRE TEST o POST- TEST
  • 29.  EXP.GROUP O1 O2 O3 TREATMENT O1O2O3
  • 30.  THEY ARE MORE PRACTICAL AND FEASIBLE TO CONDUCT RESEARCH STUDIES IN NURSING.  IN THE ABSENCE OF A LARGE SAMPLE SIZE, RANDOMIZATION AND/OR AVAILALABILITY OF CONTROL GROUP ARE NOT ALWAYS POSSIBLE.  IT MAY BE ABLE TO ESTABLISH CAUSAL RELATIONSHIP, WHEREIN SOME OF THE HYPOTHESES ARE PRACTICALLY ANSWERED THROUGH THIS DESIGN ONLY.
  • 31.  THERE IS NO CONTROL OVER EXTRANEOUS VARIABLES INFLUENCING THE DEPENDENT VARIABLES.  THE ABSENCE OF A CONTROL GROUP OR A LACK OF CONTROL OVER THE RESEARCH SETTING MAKES THE RESULT OF THIS DESIGN LESS RELIABLE AND WEAK FOR THE ESTABILISHMENT OF CASUAL RELATIONSHIP BETWEEN INDEPENDENT AND DEPENDENT VARIABLES.
  • 32.  THIS RESEARCH DESIGN IS CONSIDERED VERY WEAK, BECAUSE THE RESEARCH HAS VERY LITTLE CONTROL OVER THE EXPERIMENT.
  • 33.  ONE SHOT CASE DESIGN; EXP.GROUP TREATMENT o POST-TEST •ONE- GROUP PRETEST- POSTTEST DESIGN; EXP.GROUP TREATMENT o POST- TEST PRE TEST
  • 34.  VERY SIMPLE AND CONVENIENT TO CONDUCT THESE STUDIES IN NATURAL SETTING, ESPECIALLY IN NURSING.  MOST SUITABLE DESIGN FOR THE BEGINNERS IN THE FIELD OF EXPERIMENTAL RESEARCH.
  • 35.  IT HAS VERY LITTLE CONTROL OVER THE RESEARCH.  IT HAS A HIGHER THREAT TO INTERNAL VALIDITY OF RESEARCH .
  • 36.  IT IS ONE OF THE BROAD CATEGORIES OF RESEARCH DESIGNS, IN WHICH THE RESEARCH OBSERVES THE PHENOMENA AS THEY OCCUR NATURALLY, AND NO EXTERNAL VARIABLES ARE INTRODUCED.
  • 37.  THE INDEPENDENT VARIABLES CANNOT BE MANIPULATED.  IT IS UNETHICAL TO MANIPULATE THE INDEPENDENT VARIABLE.  THE RESEARCH SITUATIONS WHERE IT IS NOT PRACTICALLY POSSIBLE TO CONDUCT EXPERIMENTS.  DESCRIPTIVE-TYPE STUDIES THAT DO NOT REQUIRE ANY EXPERIMENTAL APPROACHES.
  • 38.  DESCRIPTIVE DESIGN  UNIVARIANT DESCRIPTIVE DESIGN  EXPLORATORY DESCRIPTIVE DESIGN  COMPARATIVE DESCRIPTIVE DESIGN  CORRELATION/EX-POST FACTO DESIGN  PROSPECTIVE DESIGN  RETROSPECTIVE DESIGN  DEVELOPMENTAL RESEARCH DESIGN  CROSS-SECTIONAL DESIGN  LONGITUDINAL DESIGN  EPIDEMIOLOGICAL DESIGNS  CASE- CONTROL STUDIES  COHORT STUDIES  SURVEY RESEARCH DESIGN
  • 39.  IT IS USED TO OBSERVE, DESCRIBE, AND DOCUMENT ASPECT OF A SITUATION AS IT NATURALLY OCCURS, AND SOMETIMES TO SERVE AS A STARTING POINT FOR HYPOTHESIS GENERATION OR THEORY DEVELOPMENT.
  • 40.  USED TO OBSERVE, DOCUMENT,AND DESCRIBE A PHENOMENON OCCURING IN NATURAL SETTING.  TO GAIN MORE INFORMATION ABOUT CHARACTERISTICS WITHIN A PARTICULAR FIELD OF INQUIRY.  USED TO DEVELOP THEORIES, IDENTIFY PROBLEMS WWITH CURRENT PRACTIS, MAKE JUDGEMENTS, OR DETERMINE OTHER PRACTICES IN SIMILAR SITUATIONS.
  • 41.  UNIVARIANT DESCRIPTIVE DESIGN ARE UNDERTAKEN TO DESCRIBE THE FREQUENCY OF A PHENOMENON.  THIS DESIGN DOES NOT FOCUS ON THE STUDY OF A SINGLE VARIABLE; THERE MAY BE ONE OR MORE VARIABLES INVOLVED IN THE STUDY.
  • 42. IT IS USED TO IDENTIFY, EXPLORE , AND DESCRIBE EXISITING PHENOMENON AND ITS RELATED FACTORS.
  • 43.  IT INVOLVES COMPARING AND CONTRASTING TWO OR MORE SAMPLE OF STUDY SUBJECT ON ONE OR MORE VARIABLES OFTEN AT A SINGLE POINT OF TIME.
  • 44.  THIS IS A NON EXPERIMENTAL DESIGN, WHERE RESEARCHER EXAMINES THE RELATIONSHIP BETWEEN TWO OR MORE VARIABLES IN A NATURAL SETTING WITH OUT MANIPULATION OF CONTROL.
  • 45.  THE RESEARCHER FIND THE STRENGTH OF RELATIONSHIP BETWEEN THE VARIABLES.  GENERALLY IT HAS INDEPENDENT AND DEPENDENT VARIABLES EFFECT OF INDEPENDENT VARIABLE IS OBSERVE WITH OUT MANIPULATING THE DEPENDENT VARIABLE.  SOME TIMES IDENTIFICATION OF DEPENDENT AND INDEPENDENT VARIABLE.  IT FINDED BY USING CORRELATION AND CO- EFFEFIENT
  • 46.  HERE THE RESEARCHER RELATES THE PRESENT TO THE FUTURE IS A PROSPECTIVE RESEARCH DESIGN. RETROSPECTIVE RESEARCH DESIGN HERE THE RESEARCHER STUDIES THE CURRENT PHENOMENON BY SEEKING INFORMATION FROM PAST.
  • 47.  IT EXAMINES THE PHENOMENON WITH REFERANCE TO TIME.
  • 48.  CROSS SECTION DESIGN IN WHICH RESEARCHER COLLECT DATA AT PARTICULAR TIME (ONE PERIOD OF DATA COLLECTION) IT IS MORE CONVENIENT.  LONGITUDINAL DESIGN HERE THE DATACOLLECT AT LONG TIME( LONG TIME STUDY). IT HAS THREE TYPES; TREND STUDIES PANEL STUDIES FOLLOW-UP STUDIES
  • 49.  IT INVOLVES INVESTIGATE THE DISTRIBUTION AND CAUSES OF THE DISEASES IN POPULATION.  THE PROSPECTIVE STUDIES ARE KNOW AS COHORT STUDY AND RETROSPETIVE STUDIES ARE KNOW AS CASE- CONTROL STUDIES.
  • 50.  COHORT STUDIES HERE THE LONGITUDINAL APPROACH IS USED TO INVESTICATE THE DISEASES AND CAUSES.  CASE CONTROL STUDIES IN THIS DESIGN, CAUSES OF A DISEASE ARE INVESTIGATED AFTER THE OCCURRENCE OF A DISEASE.
  • 51. IF THE SURVEY IS CONDUCTED ON A SAMPLE OF POPULATION, IT IS CALLED SAMPLE SURVEY. IF THE ENTIRE POPULATION IS INVOVLED, IT IS CALLED A POPULATION SURVEY SUCH AS CENSUSES, ECT.,
  • 52.  DEPENDING ON THE NATURE OF PHENOMENON UNDER STUDY.  BASED ON METHODS OF DATA COLLECTION.
  • 53. ADVANTAGES  IT IS A CONVENIENT METHOD.  SUITABLE FOR NURSING RESEARCH.  IT IS SIMPLE.  LOW COST COMPARE TO EXPERIMENT.  THE RELATIONSHIP BETWEEN VARIABLES FINDING IS NEVER CLEAR.  IT HAS MORE ERROR  NON RANDOMIZED METHOD WILL RESULTING IN ERROR. DISADVANTAGES
  • 54.  METHODOLOGICAL STUDIES  META –ANALYSIS  SECONDARY DATA ANALYSIS  OUTCOME RESEARCH  EVALUATION STUDIES  OPERATIONAL RESEARCH