SlideShare a Scribd company logo
1 of 6
Amin Eltayeb Sharafeldin
200910870
What is it?
Why is it
important for
good
research?
How do we
make sure
we have it
when
conducting
research?
What
prevents it
with regards
to research
structure or
design?
Provide this information about both
reliability and validity as they are related
to research:
2. When methods or tools of
collecting data in a research are
reliable, we eliminate the number of
errors. Hence, each result is
accurate.
3. Every research must have a Pre-
planning which includes the types
of tools of measurement and their
reliability stability, equivalence &
homogeneity.
4. Outdated data gives reliable
results, because they are not
reflecting current situations.
1. Reliability is a trusted method or
test in the research field, so each
method gives the same results
every time its applied.
2.When tools are valid, they give
results which are reflecting the
dimension it was measured. I.e.
when a test is used to measure job
candidates, its valid when it has a
direct relationship with future job
performance.
3. We must define what’s to be
measured and choose which tools
that gives valid responses or
results.
4. Some topics of research does not
suit specific tools of measurements
or collecting data, so tools becomes
invalid as they give inaccurate data
like: using questionnaires rather
than experiments to evaluate new
drug success rate on humans.
1.Validity is the likeliness of a
measurement to do its intended
purpose.
1. http://www.census.gov/
2.
https://www.cia.gov/library/publ
ications/the-world-factbook
3. http://library.qu.edu.qa/
4. http://www.bls.gov/
Provide four (4) unique web
sources that describe
reliability and validity. Only
one may be Wikipedia.
Neither
Reliable nor
Valid
Reliable &
Valid
Somehow
Reliable but
not Valid
Somewhat
Valid but
not Reliable

More Related Content

What's hot

The Power of Prediction: Building a Better Test-Taker
The Power of Prediction: Building a Better Test-TakerThe Power of Prediction: Building a Better Test-Taker
The Power of Prediction: Building a Better Test-TakerExamSoft
 
Quantitative Method Assignment Help
Quantitative Method Assignment HelpQuantitative Method Assignment Help
Quantitative Method Assignment HelpStat Analytica
 
A/B testing from basic concepts to advanced techniques
A/B testing  from basic concepts to advanced techniquesA/B testing  from basic concepts to advanced techniques
A/B testing from basic concepts to advanced techniquesAnatoliy Vuets
 
Technology Assessment and Refinement for Its Adoption
Technology Assessment and  Refinement for Its AdoptionTechnology Assessment and  Refinement for Its Adoption
Technology Assessment and Refinement for Its AdoptionManoj Sharma
 
Parameter tuning or default values
Parameter tuning or default valuesParameter tuning or default values
Parameter tuning or default valuesVivek Nair
 
Statistical hypothesis testing in e commerce
Statistical hypothesis testing in e commerceStatistical hypothesis testing in e commerce
Statistical hypothesis testing in e commerceAnatoliy Vuets
 
Analysis of Effort Estimation Model in Traditional and Agile (USING METRICS ...
Analysis of Effort Estimation Model in Traditional and Agile  (USING METRICS ...Analysis of Effort Estimation Model in Traditional and Agile  (USING METRICS ...
Analysis of Effort Estimation Model in Traditional and Agile (USING METRICS ...ijcoa
 
How WorkSafe Solves Ergonomic Issues
How WorkSafe Solves Ergonomic IssuesHow WorkSafe Solves Ergonomic Issues
How WorkSafe Solves Ergonomic IssuesMathesonWorkSafe
 
Decision making - ims davv
Decision making - ims davv Decision making - ims davv
Decision making - ims davv Abhishek Kandare
 
Towards a Theory of Developer Satisfaction and Productivity
Towards a Theory of Developer Satisfaction and ProductivityTowards a Theory of Developer Satisfaction and Productivity
Towards a Theory of Developer Satisfaction and ProductivityMargaret-Anne Storey
 
How does a scientists work
How does a scientists workHow does a scientists work
How does a scientists workLevi Nebres
 
Uop qnt 561 week 6 signature assignment (hospital) new
Uop qnt 561 week 6 signature assignment (hospital) newUop qnt 561 week 6 signature assignment (hospital) new
Uop qnt 561 week 6 signature assignment (hospital) newolivergeorg
 
Trends over time
Trends over timeTrends over time
Trends over timedjleach
 
Multiple Response Questions - Allowing for chance in authentic assessments
Multiple Response Questions - Allowing for chance in authentic assessmentsMultiple Response Questions - Allowing for chance in authentic assessments
Multiple Response Questions - Allowing for chance in authentic assessmentsMhairi Mcalpine
 
840 plenary elder_using his laptop
840 plenary elder_using his laptop840 plenary elder_using his laptop
840 plenary elder_using his laptopRising Media, Inc.
 

What's hot (20)

The Power of Prediction: Building a Better Test-Taker
The Power of Prediction: Building a Better Test-TakerThe Power of Prediction: Building a Better Test-Taker
The Power of Prediction: Building a Better Test-Taker
 
Quantitative Method Assignment Help
Quantitative Method Assignment HelpQuantitative Method Assignment Help
Quantitative Method Assignment Help
 
A/B testing from basic concepts to advanced techniques
A/B testing  from basic concepts to advanced techniquesA/B testing  from basic concepts to advanced techniques
A/B testing from basic concepts to advanced techniques
 
Technology Assessment and Refinement for Its Adoption
Technology Assessment and  Refinement for Its AdoptionTechnology Assessment and  Refinement for Its Adoption
Technology Assessment and Refinement for Its Adoption
 
Case study 1
Case study 1 Case study 1
Case study 1
 
Parameter tuning or default values
Parameter tuning or default valuesParameter tuning or default values
Parameter tuning or default values
 
Training and TAM
Training and TAMTraining and TAM
Training and TAM
 
Statistical hypothesis testing in e commerce
Statistical hypothesis testing in e commerceStatistical hypothesis testing in e commerce
Statistical hypothesis testing in e commerce
 
Analysis of Effort Estimation Model in Traditional and Agile (USING METRICS ...
Analysis of Effort Estimation Model in Traditional and Agile  (USING METRICS ...Analysis of Effort Estimation Model in Traditional and Agile  (USING METRICS ...
Analysis of Effort Estimation Model in Traditional and Agile (USING METRICS ...
 
Quality in qualitative research (1)
Quality in qualitative research (1)Quality in qualitative research (1)
Quality in qualitative research (1)
 
How WorkSafe Solves Ergonomic Issues
How WorkSafe Solves Ergonomic IssuesHow WorkSafe Solves Ergonomic Issues
How WorkSafe Solves Ergonomic Issues
 
Lecture 7 measurement ii
Lecture   7   measurement iiLecture   7   measurement ii
Lecture 7 measurement ii
 
Decision making - ims davv
Decision making - ims davv Decision making - ims davv
Decision making - ims davv
 
TCI in primary care - SEM (2006)
TCI in primary care - SEM (2006)TCI in primary care - SEM (2006)
TCI in primary care - SEM (2006)
 
Towards a Theory of Developer Satisfaction and Productivity
Towards a Theory of Developer Satisfaction and ProductivityTowards a Theory of Developer Satisfaction and Productivity
Towards a Theory of Developer Satisfaction and Productivity
 
How does a scientists work
How does a scientists workHow does a scientists work
How does a scientists work
 
Uop qnt 561 week 6 signature assignment (hospital) new
Uop qnt 561 week 6 signature assignment (hospital) newUop qnt 561 week 6 signature assignment (hospital) new
Uop qnt 561 week 6 signature assignment (hospital) new
 
Trends over time
Trends over timeTrends over time
Trends over time
 
Multiple Response Questions - Allowing for chance in authentic assessments
Multiple Response Questions - Allowing for chance in authentic assessmentsMultiple Response Questions - Allowing for chance in authentic assessments
Multiple Response Questions - Allowing for chance in authentic assessments
 
840 plenary elder_using his laptop
840 plenary elder_using his laptop840 plenary elder_using his laptop
840 plenary elder_using his laptop
 

Similar to Reliability & validity

JUEZAN-RELIABILITY OF ASSESSMENT TOOLS.pptx
JUEZAN-RELIABILITY OF ASSESSMENT TOOLS.pptxJUEZAN-RELIABILITY OF ASSESSMENT TOOLS.pptx
JUEZAN-RELIABILITY OF ASSESSMENT TOOLS.pptxAlessandraJulianneRa
 
Validity and Reliability - Research Instrument.docx
Validity and Reliability - Research Instrument.docxValidity and Reliability - Research Instrument.docx
Validity and Reliability - Research Instrument.docxArkinWinchester
 
ELTLAE Group 2.pptx
ELTLAE Group 2.pptxELTLAE Group 2.pptx
ELTLAE Group 2.pptxAhzaPutro
 
Reliability Validity
Reliability ValidityReliability Validity
Reliability Validitypascastpt
 
228 Chapter 8 • Measurementto collect more validation data mor.docx
228   Chapter 8 • Measurementto collect more validation data mor.docx228   Chapter 8 • Measurementto collect more validation data mor.docx
228 Chapter 8 • Measurementto collect more validation data mor.docxeugeniadean34240
 
Characteristics of Good Evaluation Instrument
Characteristics of Good Evaluation InstrumentCharacteristics of Good Evaluation Instrument
Characteristics of Good Evaluation InstrumentSuresh Babu
 
Validity and reliability of questionnaires
Validity and reliability of questionnairesValidity and reliability of questionnaires
Validity and reliability of questionnairesVenkitachalam R
 
Chapter 13 An evaluation framework
Chapter 13 An evaluation frameworkChapter 13 An evaluation framework
Chapter 13 An evaluation frameworkvuongdq93
 
Validity of a Research Tool
Validity of a Research ToolValidity of a Research Tool
Validity of a Research TooljobyVarghese22
 
Unit 9c. Data Collection tools.pptx
Unit 9c. Data Collection tools.pptxUnit 9c. Data Collection tools.pptx
Unit 9c. Data Collection tools.pptxshakirRahman10
 
JC-16-23June2021-rel-val.pptx
JC-16-23June2021-rel-val.pptxJC-16-23June2021-rel-val.pptx
JC-16-23June2021-rel-val.pptxsaurami
 
Discretion-Related Validity
Discretion-Related ValidityDiscretion-Related Validity
Discretion-Related ValidityKate Loge
 
What the Department of Labor Says About the Assessments You Use
What the Department of Labor Says About the Assessments You UseWhat the Department of Labor Says About the Assessments You Use
What the Department of Labor Says About the Assessments You Usesceb
 
reliablity and validity in social sciences research
reliablity and validity  in social sciences researchreliablity and validity  in social sciences research
reliablity and validity in social sciences researchSourabh Sharma
 
Presentation Validity & Reliability
Presentation Validity & ReliabilityPresentation Validity & Reliability
Presentation Validity & Reliabilitysongoten77
 
research-instruments (1).pptx
research-instruments (1).pptxresearch-instruments (1).pptx
research-instruments (1).pptxJCronus
 
Data collection and reporting of key performance indicators
Data collection and reporting of key performance indicatorsData collection and reporting of key performance indicators
Data collection and reporting of key performance indicatorskiran
 

Similar to Reliability & validity (20)

JUEZAN-RELIABILITY OF ASSESSMENT TOOLS.pptx
JUEZAN-RELIABILITY OF ASSESSMENT TOOLS.pptxJUEZAN-RELIABILITY OF ASSESSMENT TOOLS.pptx
JUEZAN-RELIABILITY OF ASSESSMENT TOOLS.pptx
 
Validity and Reliability - Research Instrument.docx
Validity and Reliability - Research Instrument.docxValidity and Reliability - Research Instrument.docx
Validity and Reliability - Research Instrument.docx
 
ELTLAE Group 2.pptx
ELTLAE Group 2.pptxELTLAE Group 2.pptx
ELTLAE Group 2.pptx
 
Reliability Validity
Reliability ValidityReliability Validity
Reliability Validity
 
228 Chapter 8 • Measurementto collect more validation data mor.docx
228   Chapter 8 • Measurementto collect more validation data mor.docx228   Chapter 8 • Measurementto collect more validation data mor.docx
228 Chapter 8 • Measurementto collect more validation data mor.docx
 
Characteristics of Good Evaluation Instrument
Characteristics of Good Evaluation InstrumentCharacteristics of Good Evaluation Instrument
Characteristics of Good Evaluation Instrument
 
Validity and reliability of questionnaires
Validity and reliability of questionnairesValidity and reliability of questionnaires
Validity and reliability of questionnaires
 
Rep
RepRep
Rep
 
Chapter 13 An evaluation framework
Chapter 13 An evaluation frameworkChapter 13 An evaluation framework
Chapter 13 An evaluation framework
 
Validity of a Research Tool
Validity of a Research ToolValidity of a Research Tool
Validity of a Research Tool
 
Unit 9c. Data Collection tools.pptx
Unit 9c. Data Collection tools.pptxUnit 9c. Data Collection tools.pptx
Unit 9c. Data Collection tools.pptx
 
JC-16-23June2021-rel-val.pptx
JC-16-23June2021-rel-val.pptxJC-16-23June2021-rel-val.pptx
JC-16-23June2021-rel-val.pptx
 
EM&E.pptx
EM&E.pptxEM&E.pptx
EM&E.pptx
 
Discretion-Related Validity
Discretion-Related ValidityDiscretion-Related Validity
Discretion-Related Validity
 
PPT 17 TESTS.ppt
PPT 17 TESTS.pptPPT 17 TESTS.ppt
PPT 17 TESTS.ppt
 
What the Department of Labor Says About the Assessments You Use
What the Department of Labor Says About the Assessments You UseWhat the Department of Labor Says About the Assessments You Use
What the Department of Labor Says About the Assessments You Use
 
reliablity and validity in social sciences research
reliablity and validity  in social sciences researchreliablity and validity  in social sciences research
reliablity and validity in social sciences research
 
Presentation Validity & Reliability
Presentation Validity & ReliabilityPresentation Validity & Reliability
Presentation Validity & Reliability
 
research-instruments (1).pptx
research-instruments (1).pptxresearch-instruments (1).pptx
research-instruments (1).pptx
 
Data collection and reporting of key performance indicators
Data collection and reporting of key performance indicatorsData collection and reporting of key performance indicators
Data collection and reporting of key performance indicators
 

Recently uploaded

Pharmacognosy Flower 3. Compositae 2023.pdf
Pharmacognosy Flower 3. Compositae 2023.pdfPharmacognosy Flower 3. Compositae 2023.pdf
Pharmacognosy Flower 3. Compositae 2023.pdfMahmoud M. Sallam
 
Kisan Call Centre - To harness potential of ICT in Agriculture by answer farm...
Kisan Call Centre - To harness potential of ICT in Agriculture by answer farm...Kisan Call Centre - To harness potential of ICT in Agriculture by answer farm...
Kisan Call Centre - To harness potential of ICT in Agriculture by answer farm...Krashi Coaching
 
Incoming and Outgoing Shipments in 1 STEP Using Odoo 17
Incoming and Outgoing Shipments in 1 STEP Using Odoo 17Incoming and Outgoing Shipments in 1 STEP Using Odoo 17
Incoming and Outgoing Shipments in 1 STEP Using Odoo 17Celine George
 
CARE OF CHILD IN INCUBATOR..........pptx
CARE OF CHILD IN INCUBATOR..........pptxCARE OF CHILD IN INCUBATOR..........pptx
CARE OF CHILD IN INCUBATOR..........pptxGaneshChakor2
 
Introduction to ArtificiaI Intelligence in Higher Education
Introduction to ArtificiaI Intelligence in Higher EducationIntroduction to ArtificiaI Intelligence in Higher Education
Introduction to ArtificiaI Intelligence in Higher Educationpboyjonauth
 
call girls in Kamla Market (DELHI) 🔝 >༒9953330565🔝 genuine Escort Service 🔝✔️✔️
call girls in Kamla Market (DELHI) 🔝 >༒9953330565🔝 genuine Escort Service 🔝✔️✔️call girls in Kamla Market (DELHI) 🔝 >༒9953330565🔝 genuine Escort Service 🔝✔️✔️
call girls in Kamla Market (DELHI) 🔝 >༒9953330565🔝 genuine Escort Service 🔝✔️✔️9953056974 Low Rate Call Girls In Saket, Delhi NCR
 
Science lesson Moon for 4th quarter lesson
Science lesson Moon for 4th quarter lessonScience lesson Moon for 4th quarter lesson
Science lesson Moon for 4th quarter lessonJericReyAuditor
 
_Math 4-Q4 Week 5.pptx Steps in Collecting Data
_Math 4-Q4 Week 5.pptx Steps in Collecting Data_Math 4-Q4 Week 5.pptx Steps in Collecting Data
_Math 4-Q4 Week 5.pptx Steps in Collecting DataJhengPantaleon
 
POINT- BIOCHEMISTRY SEM 2 ENZYMES UNIT 5.pptx
POINT- BIOCHEMISTRY SEM 2 ENZYMES UNIT 5.pptxPOINT- BIOCHEMISTRY SEM 2 ENZYMES UNIT 5.pptx
POINT- BIOCHEMISTRY SEM 2 ENZYMES UNIT 5.pptxSayali Powar
 
SOCIAL AND HISTORICAL CONTEXT - LFTVD.pptx
SOCIAL AND HISTORICAL CONTEXT - LFTVD.pptxSOCIAL AND HISTORICAL CONTEXT - LFTVD.pptx
SOCIAL AND HISTORICAL CONTEXT - LFTVD.pptxiammrhaywood
 
“Oh GOSH! Reflecting on Hackteria's Collaborative Practices in a Global Do-It...
“Oh GOSH! Reflecting on Hackteria's Collaborative Practices in a Global Do-It...“Oh GOSH! Reflecting on Hackteria's Collaborative Practices in a Global Do-It...
“Oh GOSH! Reflecting on Hackteria's Collaborative Practices in a Global Do-It...Marc Dusseiller Dusjagr
 
Enzyme, Pharmaceutical Aids, Miscellaneous Last Part of Chapter no 5th.pdf
Enzyme, Pharmaceutical Aids, Miscellaneous Last Part of Chapter no 5th.pdfEnzyme, Pharmaceutical Aids, Miscellaneous Last Part of Chapter no 5th.pdf
Enzyme, Pharmaceutical Aids, Miscellaneous Last Part of Chapter no 5th.pdfSumit Tiwari
 
Class 11 Legal Studies Ch-1 Concept of State .pdf
Class 11 Legal Studies Ch-1 Concept of State .pdfClass 11 Legal Studies Ch-1 Concept of State .pdf
Class 11 Legal Studies Ch-1 Concept of State .pdfakmcokerachita
 
भारत-रोम व्यापार.pptx, Indo-Roman Trade,
भारत-रोम व्यापार.pptx, Indo-Roman Trade,भारत-रोम व्यापार.pptx, Indo-Roman Trade,
भारत-रोम व्यापार.pptx, Indo-Roman Trade,Virag Sontakke
 
The Most Excellent Way | 1 Corinthians 13
The Most Excellent Way | 1 Corinthians 13The Most Excellent Way | 1 Corinthians 13
The Most Excellent Way | 1 Corinthians 13Steve Thomason
 
Call Girls in Dwarka Mor Delhi Contact Us 9654467111
Call Girls in Dwarka Mor Delhi Contact Us 9654467111Call Girls in Dwarka Mor Delhi Contact Us 9654467111
Call Girls in Dwarka Mor Delhi Contact Us 9654467111Sapana Sha
 
Painted Grey Ware.pptx, PGW Culture of India
Painted Grey Ware.pptx, PGW Culture of IndiaPainted Grey Ware.pptx, PGW Culture of India
Painted Grey Ware.pptx, PGW Culture of IndiaVirag Sontakke
 

Recently uploaded (20)

Pharmacognosy Flower 3. Compositae 2023.pdf
Pharmacognosy Flower 3. Compositae 2023.pdfPharmacognosy Flower 3. Compositae 2023.pdf
Pharmacognosy Flower 3. Compositae 2023.pdf
 
Kisan Call Centre - To harness potential of ICT in Agriculture by answer farm...
Kisan Call Centre - To harness potential of ICT in Agriculture by answer farm...Kisan Call Centre - To harness potential of ICT in Agriculture by answer farm...
Kisan Call Centre - To harness potential of ICT in Agriculture by answer farm...
 
Incoming and Outgoing Shipments in 1 STEP Using Odoo 17
Incoming and Outgoing Shipments in 1 STEP Using Odoo 17Incoming and Outgoing Shipments in 1 STEP Using Odoo 17
Incoming and Outgoing Shipments in 1 STEP Using Odoo 17
 
CARE OF CHILD IN INCUBATOR..........pptx
CARE OF CHILD IN INCUBATOR..........pptxCARE OF CHILD IN INCUBATOR..........pptx
CARE OF CHILD IN INCUBATOR..........pptx
 
Introduction to ArtificiaI Intelligence in Higher Education
Introduction to ArtificiaI Intelligence in Higher EducationIntroduction to ArtificiaI Intelligence in Higher Education
Introduction to ArtificiaI Intelligence in Higher Education
 
call girls in Kamla Market (DELHI) 🔝 >༒9953330565🔝 genuine Escort Service 🔝✔️✔️
call girls in Kamla Market (DELHI) 🔝 >༒9953330565🔝 genuine Escort Service 🔝✔️✔️call girls in Kamla Market (DELHI) 🔝 >༒9953330565🔝 genuine Escort Service 🔝✔️✔️
call girls in Kamla Market (DELHI) 🔝 >༒9953330565🔝 genuine Escort Service 🔝✔️✔️
 
Science lesson Moon for 4th quarter lesson
Science lesson Moon for 4th quarter lessonScience lesson Moon for 4th quarter lesson
Science lesson Moon for 4th quarter lesson
 
_Math 4-Q4 Week 5.pptx Steps in Collecting Data
_Math 4-Q4 Week 5.pptx Steps in Collecting Data_Math 4-Q4 Week 5.pptx Steps in Collecting Data
_Math 4-Q4 Week 5.pptx Steps in Collecting Data
 
POINT- BIOCHEMISTRY SEM 2 ENZYMES UNIT 5.pptx
POINT- BIOCHEMISTRY SEM 2 ENZYMES UNIT 5.pptxPOINT- BIOCHEMISTRY SEM 2 ENZYMES UNIT 5.pptx
POINT- BIOCHEMISTRY SEM 2 ENZYMES UNIT 5.pptx
 
Staff of Color (SOC) Retention Efforts DDSD
Staff of Color (SOC) Retention Efforts DDSDStaff of Color (SOC) Retention Efforts DDSD
Staff of Color (SOC) Retention Efforts DDSD
 
SOCIAL AND HISTORICAL CONTEXT - LFTVD.pptx
SOCIAL AND HISTORICAL CONTEXT - LFTVD.pptxSOCIAL AND HISTORICAL CONTEXT - LFTVD.pptx
SOCIAL AND HISTORICAL CONTEXT - LFTVD.pptx
 
9953330565 Low Rate Call Girls In Rohini Delhi NCR
9953330565 Low Rate Call Girls In Rohini  Delhi NCR9953330565 Low Rate Call Girls In Rohini  Delhi NCR
9953330565 Low Rate Call Girls In Rohini Delhi NCR
 
“Oh GOSH! Reflecting on Hackteria's Collaborative Practices in a Global Do-It...
“Oh GOSH! Reflecting on Hackteria's Collaborative Practices in a Global Do-It...“Oh GOSH! Reflecting on Hackteria's Collaborative Practices in a Global Do-It...
“Oh GOSH! Reflecting on Hackteria's Collaborative Practices in a Global Do-It...
 
Enzyme, Pharmaceutical Aids, Miscellaneous Last Part of Chapter no 5th.pdf
Enzyme, Pharmaceutical Aids, Miscellaneous Last Part of Chapter no 5th.pdfEnzyme, Pharmaceutical Aids, Miscellaneous Last Part of Chapter no 5th.pdf
Enzyme, Pharmaceutical Aids, Miscellaneous Last Part of Chapter no 5th.pdf
 
Class 11 Legal Studies Ch-1 Concept of State .pdf
Class 11 Legal Studies Ch-1 Concept of State .pdfClass 11 Legal Studies Ch-1 Concept of State .pdf
Class 11 Legal Studies Ch-1 Concept of State .pdf
 
Model Call Girl in Bikash Puri Delhi reach out to us at 🔝9953056974🔝
Model Call Girl in Bikash Puri  Delhi reach out to us at 🔝9953056974🔝Model Call Girl in Bikash Puri  Delhi reach out to us at 🔝9953056974🔝
Model Call Girl in Bikash Puri Delhi reach out to us at 🔝9953056974🔝
 
भारत-रोम व्यापार.pptx, Indo-Roman Trade,
भारत-रोम व्यापार.pptx, Indo-Roman Trade,भारत-रोम व्यापार.pptx, Indo-Roman Trade,
भारत-रोम व्यापार.pptx, Indo-Roman Trade,
 
The Most Excellent Way | 1 Corinthians 13
The Most Excellent Way | 1 Corinthians 13The Most Excellent Way | 1 Corinthians 13
The Most Excellent Way | 1 Corinthians 13
 
Call Girls in Dwarka Mor Delhi Contact Us 9654467111
Call Girls in Dwarka Mor Delhi Contact Us 9654467111Call Girls in Dwarka Mor Delhi Contact Us 9654467111
Call Girls in Dwarka Mor Delhi Contact Us 9654467111
 
Painted Grey Ware.pptx, PGW Culture of India
Painted Grey Ware.pptx, PGW Culture of IndiaPainted Grey Ware.pptx, PGW Culture of India
Painted Grey Ware.pptx, PGW Culture of India
 

Reliability & validity

  • 2. What is it? Why is it important for good research? How do we make sure we have it when conducting research? What prevents it with regards to research structure or design? Provide this information about both reliability and validity as they are related to research:
  • 3. 2. When methods or tools of collecting data in a research are reliable, we eliminate the number of errors. Hence, each result is accurate. 3. Every research must have a Pre- planning which includes the types of tools of measurement and their reliability stability, equivalence & homogeneity. 4. Outdated data gives reliable results, because they are not reflecting current situations. 1. Reliability is a trusted method or test in the research field, so each method gives the same results every time its applied.
  • 4. 2.When tools are valid, they give results which are reflecting the dimension it was measured. I.e. when a test is used to measure job candidates, its valid when it has a direct relationship with future job performance. 3. We must define what’s to be measured and choose which tools that gives valid responses or results. 4. Some topics of research does not suit specific tools of measurements or collecting data, so tools becomes invalid as they give inaccurate data like: using questionnaires rather than experiments to evaluate new drug success rate on humans. 1.Validity is the likeliness of a measurement to do its intended purpose.
  • 5. 1. http://www.census.gov/ 2. https://www.cia.gov/library/publ ications/the-world-factbook 3. http://library.qu.edu.qa/ 4. http://www.bls.gov/ Provide four (4) unique web sources that describe reliability and validity. Only one may be Wikipedia.
  • 6. Neither Reliable nor Valid Reliable & Valid Somehow Reliable but not Valid Somewhat Valid but not Reliable