Attribute GRR - Cross tab - Kappa - What does "Expected Count" mean?

S

S. Udhayha Kumar

#1
Request to enlighten me about the meaning of "Expected Count" in Kappa estimation as below:

S.Udhayha Kumar


Could anyone kindly clarify me on the following:

1) What does "Expected Count" mean?
2) Why "Expected Count" is considered in Kappa estimation?
3) My understanding with Cross-tab method is that it only analyses the appraisers on where do they stand on judging the result with regard to reference value as well as comparing them- Is it right?

Thanks,
S. Udhayha Kumar
 
Last edited by a moderator:
Elsmar Forum Sponsor

Marc

Hunkered Down for the Duration
Staff member
Admin
#2
Re: Attribute GRR - Cross tab - Kappa

Any statistics experts who can help with these definitions?
 
S

S. Udhayha Kumar

#3
Request to enlighten me about the meaning of "Expected Count" in Kappa estimation as below:

S.Udhayha Kumar


Could anyone kindly clarify me on the following:

1) What does "Expected Count" mean?
2) Why "Expected Count" is considered in Kappa estimation?
3) My understanding with Cross-tab method is that it only analyses the appraisers on where do they stand on judging the result with regard to reference value as well as comparing them- Is it right?

Thanks,
S. Udhayha Kumar[/QUOTE]
 
T

TPO01

#4
1) What does "Expected Count" mean?
Since H0 assume no agreement. Hence the number you got is by chance. For example, if you ask 2 operators without checking the actual samples to say which one is good and which one is no good. The observations can also fill all the boxes. Surely, you will find some numbers in the diagonal cells. The expected count has the same meaning. The difference is the numbers are come from calculation.

2) Why "Expected Count" is considered in Kappa estimation?
As explained, you will get some numbers along the diagonal cells wven without any agreement. Therefore, we need to deduct the portion just by chance only.

3) My understanding with Cross-tab method is that it only analyses the appraisers on where do they stand on judging the result with regard to reference value as well as comparing them- Is it right?




CW TPO
 
Thread starter Similar threads Forum Replies Date
J Attribute GRR (Gage R&R) - How to get Kappa Software Gage R&R (GR&R) and MSA (Measurement Systems Analysis) 2
S Logic behind signal detection in attribute GRR% calculation Gage R&R (GR&R) and MSA (Measurement Systems Analysis) 2
A Measurement System Analysis - Attribute GRR - How kappa is calculated Gage R&R (GR&R) and MSA (Measurement Systems Analysis) 2
K IATF & Attribute Study requirements IATF 16949 - Automotive Quality Systems Standard 9
T Correct MSA study for an automated camera system which makes attribute inspection Gage R&R (GR&R) and MSA (Measurement Systems Analysis) 1
O Examples of Critical process parameter (CPP) and Critical quality attribute (CQA) Manufacturing and Related Processes 2
C Applying Weibayes to Attribute sampling Reliability Analysis - Predictions, Testing and Standards 0
M Template for Attribute Gage R & R wanted Gage R&R (GR&R) and MSA (Measurement Systems Analysis) 3
B Easy Software Needed for Recording Mainly Attribute Data Quality Assurance and Compliance Software Tools and Solutions 2
A Does an attribute study (Go/NoGo pin gage) need two studies (1 for each pin) Gage R&R (GR&R) and MSA (Measurement Systems Analysis) 1
B Attribute Gage R&R study according to "Charbonneau" Gage R&R (GR&R) and MSA (Measurement Systems Analysis) 2
R Can a Attribute Study be considered a Visual Inspection? Reliability Analysis - Predictions, Testing and Standards 6
J MSA on Part Specific Attribute Fixtures Gage R&R (GR&R) and MSA (Measurement Systems Analysis) 2
B IATF 16949 Cl. 8.6.6 - Acceptance Criteria - Zero Defects Attribute Data Sampling IATF 16949 - Automotive Quality Systems Standard 2
L Gage Blocks: Attribute or Variable Gage? General Measurement Device and Calibration Topics 3
T Attribute vs Variable Inspection Data ISO 13485 Requirement ISO 9000, ISO 9001, and ISO 9004 Quality Management Systems Standards 2
D Calibration of a Width Gage Slot with an Attribute Gage - Maximum Width Condition General Measurement Device and Calibration Topics 16
R Visual Attribute Inspector Capability and KAPPA Inspection, Prints (Drawings), Testing, Sampling and Related Topics 3
D attribute gage RR in a unique way Gage R&R (GR&R) and MSA (Measurement Systems Analysis) 4
M Proper Gauging - GD&T - Attribute gage to check true positioning on the shop floor Inspection, Prints (Drawings), Testing, Sampling and Related Topics 6
P RQL/AQL from Attribute Data Six Sigma 1
M Population failure rate based on attribute data Statistical Analysis Tools, Techniques and SPC 4
V Minitab - Attribute Gage Study Gage R&R (GR&R) and MSA (Measurement Systems Analysis) 2
S Attribute G&R for all Visual Controls in Control Plan Gage R&R (GR&R) and MSA (Measurement Systems Analysis) 1
J Attribute Test Method Validation 21 CFR Part 820 - US FDA Quality System Regulations (QSR) 1
A Attribute Sampling Plans with Switching Rules - Software Recommendations Inspection, Prints (Drawings), Testing, Sampling and Related Topics 1
F MSA - Measurement System Analysis Attribute Data Crosstab sheet APQP and PPAP 1
B Bayes Success-Run on Attribute Data - Determining Sample Size Statistical Analysis Tools, Techniques and SPC 2
A Attribute Inspection P Chart Statistical Analysis Tools, Techniques and SPC 9
Chennaiite Do Attribute Control Charts really help? Statistical Analysis Tools, Techniques and SPC 9
Sean Kelley Visual Inspection Galvanized Attribute Study Quality Tools, Improvement and Analysis 2
N Example of how to perform a Visual Attribute Gage R&R Gage R&R (GR&R) and MSA (Measurement Systems Analysis) 4
K MINITAB 16 - Attribute gage study (Analytic method) and Gage R&R Study (Expanded) Using Minitab Software 2
J Minimum number of parts to do an attribute gage R&R Gage R&R (GR&R) and MSA (Measurement Systems Analysis) 8
D Reliability of an Attribute Inspection based on Historical Data Capability, Accuracy and Stability - Processes, Machines, etc. 8
S Cross Tab Attribute Gauge Study form Excel .xls Spreadsheet Templates and Tools 3
V MSA Attribute Data Analysis Study IATF 16949 - Automotive Quality Systems Standard 1
S Destructive Attribute MSA for Simple Water Leak Check in Trailers Gage R&R (GR&R) and MSA (Measurement Systems Analysis) 5
A Minimum Number of Parts for Attribute (Go / NoGo) Data Gage R&R Gage R&R (GR&R) and MSA (Measurement Systems Analysis) 4
J Attribute MSA - Number of samples Gage R&R (GR&R) and MSA (Measurement Systems Analysis) 1
Manix MSA - How to Approach a Gauge R&R Go/NoGo Attribute Study Statistical Analysis Tools, Techniques and SPC 2
B Best Attribute Data Sampling Plan - Early Production Containment Inspection, Prints (Drawings), Testing, Sampling and Related Topics 2
E MSA of Attribute Gauges Signal Detection Method Gage R&R (GR&R) and MSA (Measurement Systems Analysis) 5
C MSA-4 Attribute Kappa Template - Verification Check Gage R&R (GR&R) and MSA (Measurement Systems Analysis) 5
D Requiring a "bad" part for attribute MSA studies Gage R&R (GR&R) and MSA (Measurement Systems Analysis) 3
N Survey about Attribute Gage and Sight Checking R&R Gage R&R (GR&R) and MSA (Measurement Systems Analysis) 5
D Attribute Agreement Analysis - MSA - False Negative/Positive IATF 16949 - Automotive Quality Systems Standard 3
N How to make a MSA for an Attribute Gauge if the Pp=Ppk=1.33 Gage R&R (GR&R) and MSA (Measurement Systems Analysis) 9
J Attribute Data MSA for more than 3 Operators Gage R&R (GR&R) and MSA (Measurement Systems Analysis) 4
J MSA for Attribute Visual Inspection Gage R&R (GR&R) and MSA (Measurement Systems Analysis) 3
Similar threads


















































Top Bottom