Deflation in the estimates of reliability - how to correct?

01 January 1970 0 6K Report

Recently, an article was published in Frontiers in Psychology of deflation-corrected estimators of reliability (Article Deflation-Corrected Estimators of Reliability

). It has been reported that in some cases, when the test items are difficult or easy, reliability may be deflated from 0,86 to 0.26 when using traditional estimators alpha, theta, omega or maximal reliability. In the article, I suggest some correction factors. Would yo come with better ideas?

Badges
Science topic

Similar topics
Engineering
Modeling

More Jari Metsämuuronen's questions See All

Interpretation of Goodman - Kruskal Gamma squared?

Dear colleages, Eta squared is dominantly used in reflecting the explaining power the same manner as a squared partial correlation coefficient (R2p ) from multiple linear regression: as the...

22 February 2021 7,801 3 View

Measurement model and systematic mechanical error?

Hi you, the expert of measurement modeling! The classical measurement model that is used in estimating reliability by, for example, maximal reliability, do not include any element for the...

15 September 2020 2,173 3 View

What would be validated instrument for measuring computational thinking in the context of higher education?

I want to run longtitudinal measures about computational thinking in the context of higher education. Could you suggest validated instruments for doing this kind of data collection in the...

26 February 2019 8,863 2 View

Does excess weight affect your personality or lifestyle?

Excess weight is a disease that affects the activity of the human and determines the movement and causes him many health problems. Did you reach such a situation or problem?

06 February 2019 4,858 92 View

Have you encountered such a situation? Your score is less than the week before in the researcher gate ?

I have decreased my score despite interacting with friends, answering questions, asking questions and publishing an article

01 February 2019 6,171 12 View

Do you require exercise on a daily basis to get the desired benefit?

It is necessary to exercise regularly until we have positive and effective benefits. If there is a break for any reason, it should not exceed two days

05 January 2019 8,227 29 View

Why people should exercise daily ?

I say that sports are important for the health of people, and also affect the workability of the organs of the body, what you think

12 November 2018 2,796 34 View

Social Media Innovation Studies

Interested in social media use in innovation, especially from B2B companies standpoint

03 February 2011 2,676 6 View

Reliability of MEAN type of compilation of items?

Hi all,It is easy to show that the reliability of the MEAN score is the same as that of SUM score but I have not found any article/source of that. If you know such an article/source, please, send...

01 January 1970 2,693 5 View

What is the most reliable source to get Impact factor of journals?

Source to get Impact factor of journals

01 March 2021 6,654 2 View

Which index or sites are reliable in determining of plant species?

There are many indexes when determining plant species: Plants of the World Online (POWO), International Plants Names Index (www.ipni.org), The Plant List (www.theplantlist.org) and others. But...

26 February 2021 3,404 10 View

How do historians determine the credibility sources in modern history?

For a source to be considered reliable it must contain accurate historical information. But how does one determine the accuracy and reliability of sources in modern and recent history since not...

23 February 2021 1,346 13 View

How can we measure the reliability and validity of our survey questionnaire?

We are conducting survey research on COVID-19 misinformation among students. How can we validate our survey for it to produce valid and reliable data? Also, what statistical tools can we use to...

16 February 2021 678 3 View

What does the value 0.498 in reliability?

There are 6 television programmes of different TV genres and their mean and mean ranks are put for each of them. But the reliability value of all the programmes together is 0.498 . So what exactly...

15 February 2021 7,686 4 View

Where can I find a reliable and updated methodology related with the design of spiral heat exchangers?

I need to design an spiral heat exchanger, buy I don't know what reference or bibliography (preferably a book) should I consult in order to get an updated and reliable methodology related with...

14 February 2021 7,910 3 View

What are the popular techniques for pre-processing measurement data in Smart Grid/Power System?

The data collected from various measurement devices often contains erroneous values - such as noise, missing values, etc. What are the popular techniques for pre-processing measurement data in...

14 February 2021 4,642 2 View

Western blot protein of interest falling at a lower weight than expected?

My protein of interest is DAGLa (115 kDa). We received the antibody for this from another researcher who reliably shows bands at this weight. We do see a light banding at this weight, but the...

11 February 2021 6,009 3 View

Which kind of validity should e established in case we want to conduct a survey using newly developed survey questionnaire?

I am conducting a survey using self developed questionnaire. I have established its face validity and content validity. Some expert reviewer has suggested I must establish the validity by...

11 February 2021 2,077 3 View

According to the sample size of a research, what is the percentage of the sample size needed to assess the reliability and validity?

I need an answer supported by an article or book... etc Actually, am doing a research, the sample size is 120 subjects. I already assessed the reliability and validity on 20 subjects. what I want...

11 February 2021 388 4 View