Reliability refers to the consistency of test scores. A reliable test will produce similar results over multiple test administrations. There are several methods for determining reliability, including internal consistency, test-retest reliability, inter-rater reliability, and split-half reliability. Validity refers to how well a test measures what it intends to measure. Validity can be established through face validity, construct validity, content validity, and criterion validity. Both reliability and validity are important for a high quality test, as a test can be reliable without being valid.
This document discusses the key characteristics of a good measuring instrument or test, including validity, reliability, objectivity, norms, and usability. It defines validity as the accuracy with which a test measures what it claims to measure, and describes different types of validity including content validity, criterion-related validity, and construct validity. Reliability is defined as the consistency of measurement and different methods for estimating reliability are outlined. Objectivity refers to eliminating personal bias from scoring. Norms provide average scores for comparison. Usability factors like ease of administration, timing, cost, and scoring are also addressed.
This short SlideShare presentation explores a basic overview of test reliability and test validity. Validity is the degree to which a test measures what it is supposed to measure. Reliability is the degree to which a test consistently measures whatever it measures. Examples are given as well as a slide on considerations for writing test questions that demand higher-order thinking.
This presentation covers the intricacies of the Item Response Theory. I made this presentation to explain the concepts of IRT to my lab research group at the University of Minnesota. I have taken the contents from various sources so apologies for the poor design of the presentation.
This document provides an overview of item response theory (IRT), including key concepts like item response functions, item parameters, and assumptions of IRT models. IRT aims to measure latent traits through analysis of item-level data, allowing item and person parameters to be estimated independent of specific test administrations. The document outlines the 1, 2, and 3 parameter IRT models and how they relate item characteristics like difficulty and discrimination to the probability of endorsing an item based on trait level. Key assumptions like unidimensionality and local independence are also discussed.
This document discusses validity and reliability in research. It defines validity as the extent to which a test measures what it claims to measure. Reliability is defined as the extent to which a test shows consistent results on repeated trials. The document then discusses various types of validity including content, face, criterion-related, construct, and ecological validity. It also discusses types of reliability including equivalency, stability, internal consistency, inter-rater, and intra-rater reliability. Factors affecting validity and reliability are presented along with how validity and reliability are related concepts in research.
The document discusses key qualities of measurement devices: validity, reliability, practicality, and backwash effect. It defines each quality and provides examples. Validity refers to what a test measures, and includes content, construct, criterion-related, concurrent, and predictive validity. Reliability is how consistent measurements are, including equivalency, stability, internal, and inter-rater reliability. Practicality means a test is easy to construct, administer, score and interpret. Backwash effect is a test's influence on teaching and learning.
This presentation is about standardized achievement tests:
Definition of achievement tests
Definition of SAT
Functions of SAT
Types of SAT
Characteristics of SAT
SAT vs. Teacher made tests
Classification of SAT
SAT batteries
SAT in specific areas
Customized Achievement Tests
Individual Achievement Tests
Reliability refers to the consistency of test scores. A reliable test will produce similar results over multiple test administrations. There are several methods for determining reliability, including internal consistency, test-retest reliability, inter-rater reliability, and split-half reliability. Validity refers to how well a test measures what it intends to measure. Validity can be established through face validity, construct validity, content validity, and criterion validity. Both reliability and validity are important for a high quality test, as a test can be reliable without being valid.
This document discusses the key characteristics of a good measuring instrument or test, including validity, reliability, objectivity, norms, and usability. It defines validity as the accuracy with which a test measures what it claims to measure, and describes different types of validity including content validity, criterion-related validity, and construct validity. Reliability is defined as the consistency of measurement and different methods for estimating reliability are outlined. Objectivity refers to eliminating personal bias from scoring. Norms provide average scores for comparison. Usability factors like ease of administration, timing, cost, and scoring are also addressed.
This short SlideShare presentation explores a basic overview of test reliability and test validity. Validity is the degree to which a test measures what it is supposed to measure. Reliability is the degree to which a test consistently measures whatever it measures. Examples are given as well as a slide on considerations for writing test questions that demand higher-order thinking.
This presentation covers the intricacies of the Item Response Theory. I made this presentation to explain the concepts of IRT to my lab research group at the University of Minnesota. I have taken the contents from various sources so apologies for the poor design of the presentation.
This document provides an overview of item response theory (IRT), including key concepts like item response functions, item parameters, and assumptions of IRT models. IRT aims to measure latent traits through analysis of item-level data, allowing item and person parameters to be estimated independent of specific test administrations. The document outlines the 1, 2, and 3 parameter IRT models and how they relate item characteristics like difficulty and discrimination to the probability of endorsing an item based on trait level. Key assumptions like unidimensionality and local independence are also discussed.
This document discusses validity and reliability in research. It defines validity as the extent to which a test measures what it claims to measure. Reliability is defined as the extent to which a test shows consistent results on repeated trials. The document then discusses various types of validity including content, face, criterion-related, construct, and ecological validity. It also discusses types of reliability including equivalency, stability, internal consistency, inter-rater, and intra-rater reliability. Factors affecting validity and reliability are presented along with how validity and reliability are related concepts in research.
The document discusses key qualities of measurement devices: validity, reliability, practicality, and backwash effect. It defines each quality and provides examples. Validity refers to what a test measures, and includes content, construct, criterion-related, concurrent, and predictive validity. Reliability is how consistent measurements are, including equivalency, stability, internal, and inter-rater reliability. Practicality means a test is easy to construct, administer, score and interpret. Backwash effect is a test's influence on teaching and learning.
This presentation is about standardized achievement tests:
Definition of achievement tests
Definition of SAT
Functions of SAT
Types of SAT
Characteristics of SAT
SAT vs. Teacher made tests
Classification of SAT
SAT batteries
SAT in specific areas
Customized Achievement Tests
Individual Achievement Tests
The document provides an overview of item response theory (IRT), including what IRT is, item characteristic curves, and IRT models. IRT links examinee performance to latent traits through mathematical item characteristic curve models like the 1PL, 2PL, and 3PL models. These models describe the relationship between item responses and ability through parameters like difficulty, discrimination, and guessing. IRT provides benefits over classical test theory like scale-independent item and ability estimates.
The document discusses how to evaluate the quality of test items through item analysis, which assesses item difficulty, how well items differentiate high and low performers, and the quality of distractors. Item analysis helps ensure test items are valid and reliable by identifying poorly performing items that should be improved or discarded. The results of item analysis can provide insights into how to enhance the measurement properties of a test.
The document discusses different types of tests, their purposes, and characteristics. It describes screening/admission tests which determine if a person has the required behavior to be successful in a program. Placement tests determine the appropriate level for a person in a program. Proficiency tests measure overall language ability compared to native speakers. Achievement tests determine if learning objectives have been achieved. The TOEFL test is provided as an example of a proficiency test. Guidelines for developing effective tests are also outlined.
Topic: What is Reliability and its Types?
Student Name: Kanwal Naz
Class: B.Ed 1.5
Project Name: “Young Teachers' Professional Development (TPD)"
"Project Founder: Prof. Dr. Amjad Ali Arain
Faculty of Education, University of Sindh, Pakistan
The document discusses two types of tests: norm-referenced tests (NRTs) and criterion-referenced tests (CRTs). NRTs measure global language abilities and compare student performance to others, following a normal distribution. CRTs measure specific instructional objectives and compare student performance to a set criterion or standard. The key differences between the tests are that NRTs use relative interpretation to compare students, measure general proficiency, and aim to rank students, while CRTs use absolute interpretation to measure objective-based learning, specific content mastery, and assess learning against a set standard.
This presentation is about the objectivity of tests, It presents the definition of objective tests, and its meaning.
It reflects upon the objectivity of scoring, types of objective tests, merits and demerits about the same.
The document discusses the importance of validity in test construction and identifies three main types of validity: content validity, which refers to how well the test items align with the objectives being measured; criterion-related validity, which examines the correlation between test scores and external criteria; and construct validity, which refers to how well test scores are explained by theoretical constructs. Validity is specific to each test administration and is determined through evidence rather than absolute measures, with the most important type for classroom teachers being content validity.
Gordon Allport developed one of the earliest theories of personality traits. He focused on the uniqueness of each individual and how their traits are shaped by present contexts rather than past history. Allport identified three levels of traits: cardinal traits that dominate a person's behavior, central traits that describe basic characteristics found in most people, and secondary traits that only appear in certain situations. Allport developed a list of over 4,500 trait words and believed traits could be observed and used to distinguish individuals' personalities.
Validity & reliability an interesting powerpoint slide i createdSze Kai
This document discusses the importance of validity and reliability in testing. It provides an example of a weighing test to question validity, noting that environment, respondent, and test administration can affect reliability. Both validity and reliability are important for a good test, which requires balancing these factors. Teachers should understand both concepts when creating assessments.
Standardization and norming involve administering psychological tests to representative samples to establish norms. Norms provide a framework to interpret individual test scores. There are different types of norms including percentiles, age/grade norms, and national/local norms. The normative sample used to develop norms should be large, representative of the target population, and clearly defined. Norm-referenced tests interpret scores based on an individual's performance relative to the normative sample, while criterion-referenced tests evaluate performance against a set standard or criteria. Proper norming and understanding of different norm types is important for accurately interpreting psychological test results.
This document compares individual and group tests. Individual tests like the Stanford-Binet and WISC can be administered to one person at a time and measure abilities like verbal reasoning. Group tests like the Otis-Lennon and Test of Cognitive Skills are administered to multiple people at once and provide verbal, non-verbal and total scores. Individual tests are more expensive while group tests are more practical and cheaper to administer. Both types of tests measure abilities, but individual tests allow for closer examination of examinee behaviors.
It talks about the different types of validity in assessment.
* Face Validity
* Content Validity
* Predictive Validity
* Concurrent Validity
* Construct Validity
Intelligence Test - Categories of Intelligence tests – uses and limitations o...Suresh Babu
The document discusses different types of intelligence tests, how they are classified based on the method of testing (individual vs group) and medium of testing (verbal vs non-verbal). Intelligence tests can be used for selection, classification, promotion and research but have limitations as scores may vary by test and performance is impacted by temporary external factors.
Test validity refers to validating the appropriate use of a test score for a specific context or purpose. Validity is determined by studying test results in the intended setting of use, as a test may be suitable for one purpose but not another. Validity is a matter of degree rather than an absolute quality, and establishing validity requires empirical evidence and theoretical justification that the intended inferences from test scores are adequate and appropriate.
This document discusses methods for estimating the reliability of tests, including test-retest reliability, parallel forms reliability, and internal consistency reliability. It describes the split-half approach for estimating internal consistency reliability using a single test administration. This involves splitting the test into two halves and correlating scores. It discusses three methods for splitting tests - odd-even, ordered, and matched random subsets. The document also generalizes these concepts to splitting tests into multiple components. Estimates of internal consistency reliability provide a lower bound for a test's actual reliability if components are not equivalent.
This document discusses various types of tests used to measure intelligence and creativity. It provides definitions and examples of intelligence tests, including individual tests like the Wechsler Adult Intelligence Scale and group tests. It describes the subtests and scoring of the WAIS. Creativity tests are defined as assessing novel, original thinking and finding unusual solutions. Examples of creativity tests include the Torrance Tests of Creative Thinking and Baqer Mehdi's test of creative thinking. Different types of creativity tests are discussed, like consequences tests and unusual uses tests.
The document outlines the stages of test construction: planning, preparing, reviewing, and revising. In the planning stage, test objectives and techniques are determined. The preparing stage involves developing test items addressing content, format, and scoring procedures. Experts then review the test for validity, reliability, and usability, providing feedback. In the revising stage, test items are modified based on the review before pretesting. The stages ensure tests accurately measure learners' knowledge and skills.
Meaning and Methods of Estimating Reliability of Test.pptxsarat68
This document discusses the meaning and methods of estimating the reliability of tests. It defines reliability as the consistency or stability of test scores. Several methods for estimating reliability are described, including test-retest reliability, alternate forms reliability, and internal consistency reliability using split-half, Cronbach's alpha, and Kuder-Richardson formulas. Factors that influence reliability coefficients are also examined, such as test length, range of scores, and the ability to guess answers correctly.
Reliability refers to the consistency of test scores. There are three main types of reliability: stability, equivalence, and homogeneity. Stability measures consistency over time, equivalence uses alternative versions of a test, and homogeneity examines internal consistency. Factors like data collection methods, time intervals, and test administration can influence reliability. To improve reliability, tests should have clear, unambiguous questions and objective scoring. Rater reliability specifically measures consistency between raters or judges.
The document provides an overview of item response theory (IRT), including what IRT is, item characteristic curves, and IRT models. IRT links examinee performance to latent traits through mathematical item characteristic curve models like the 1PL, 2PL, and 3PL models. These models describe the relationship between item responses and ability through parameters like difficulty, discrimination, and guessing. IRT provides benefits over classical test theory like scale-independent item and ability estimates.
The document discusses how to evaluate the quality of test items through item analysis, which assesses item difficulty, how well items differentiate high and low performers, and the quality of distractors. Item analysis helps ensure test items are valid and reliable by identifying poorly performing items that should be improved or discarded. The results of item analysis can provide insights into how to enhance the measurement properties of a test.
The document discusses different types of tests, their purposes, and characteristics. It describes screening/admission tests which determine if a person has the required behavior to be successful in a program. Placement tests determine the appropriate level for a person in a program. Proficiency tests measure overall language ability compared to native speakers. Achievement tests determine if learning objectives have been achieved. The TOEFL test is provided as an example of a proficiency test. Guidelines for developing effective tests are also outlined.
Topic: What is Reliability and its Types?
Student Name: Kanwal Naz
Class: B.Ed 1.5
Project Name: “Young Teachers' Professional Development (TPD)"
"Project Founder: Prof. Dr. Amjad Ali Arain
Faculty of Education, University of Sindh, Pakistan
The document discusses two types of tests: norm-referenced tests (NRTs) and criterion-referenced tests (CRTs). NRTs measure global language abilities and compare student performance to others, following a normal distribution. CRTs measure specific instructional objectives and compare student performance to a set criterion or standard. The key differences between the tests are that NRTs use relative interpretation to compare students, measure general proficiency, and aim to rank students, while CRTs use absolute interpretation to measure objective-based learning, specific content mastery, and assess learning against a set standard.
This presentation is about the objectivity of tests, It presents the definition of objective tests, and its meaning.
It reflects upon the objectivity of scoring, types of objective tests, merits and demerits about the same.
The document discusses the importance of validity in test construction and identifies three main types of validity: content validity, which refers to how well the test items align with the objectives being measured; criterion-related validity, which examines the correlation between test scores and external criteria; and construct validity, which refers to how well test scores are explained by theoretical constructs. Validity is specific to each test administration and is determined through evidence rather than absolute measures, with the most important type for classroom teachers being content validity.
Gordon Allport developed one of the earliest theories of personality traits. He focused on the uniqueness of each individual and how their traits are shaped by present contexts rather than past history. Allport identified three levels of traits: cardinal traits that dominate a person's behavior, central traits that describe basic characteristics found in most people, and secondary traits that only appear in certain situations. Allport developed a list of over 4,500 trait words and believed traits could be observed and used to distinguish individuals' personalities.
Validity & reliability an interesting powerpoint slide i createdSze Kai
This document discusses the importance of validity and reliability in testing. It provides an example of a weighing test to question validity, noting that environment, respondent, and test administration can affect reliability. Both validity and reliability are important for a good test, which requires balancing these factors. Teachers should understand both concepts when creating assessments.
Standardization and norming involve administering psychological tests to representative samples to establish norms. Norms provide a framework to interpret individual test scores. There are different types of norms including percentiles, age/grade norms, and national/local norms. The normative sample used to develop norms should be large, representative of the target population, and clearly defined. Norm-referenced tests interpret scores based on an individual's performance relative to the normative sample, while criterion-referenced tests evaluate performance against a set standard or criteria. Proper norming and understanding of different norm types is important for accurately interpreting psychological test results.
This document compares individual and group tests. Individual tests like the Stanford-Binet and WISC can be administered to one person at a time and measure abilities like verbal reasoning. Group tests like the Otis-Lennon and Test of Cognitive Skills are administered to multiple people at once and provide verbal, non-verbal and total scores. Individual tests are more expensive while group tests are more practical and cheaper to administer. Both types of tests measure abilities, but individual tests allow for closer examination of examinee behaviors.
It talks about the different types of validity in assessment.
* Face Validity
* Content Validity
* Predictive Validity
* Concurrent Validity
* Construct Validity
Intelligence Test - Categories of Intelligence tests – uses and limitations o...Suresh Babu
The document discusses different types of intelligence tests, how they are classified based on the method of testing (individual vs group) and medium of testing (verbal vs non-verbal). Intelligence tests can be used for selection, classification, promotion and research but have limitations as scores may vary by test and performance is impacted by temporary external factors.
Test validity refers to validating the appropriate use of a test score for a specific context or purpose. Validity is determined by studying test results in the intended setting of use, as a test may be suitable for one purpose but not another. Validity is a matter of degree rather than an absolute quality, and establishing validity requires empirical evidence and theoretical justification that the intended inferences from test scores are adequate and appropriate.
This document discusses methods for estimating the reliability of tests, including test-retest reliability, parallel forms reliability, and internal consistency reliability. It describes the split-half approach for estimating internal consistency reliability using a single test administration. This involves splitting the test into two halves and correlating scores. It discusses three methods for splitting tests - odd-even, ordered, and matched random subsets. The document also generalizes these concepts to splitting tests into multiple components. Estimates of internal consistency reliability provide a lower bound for a test's actual reliability if components are not equivalent.
This document discusses various types of tests used to measure intelligence and creativity. It provides definitions and examples of intelligence tests, including individual tests like the Wechsler Adult Intelligence Scale and group tests. It describes the subtests and scoring of the WAIS. Creativity tests are defined as assessing novel, original thinking and finding unusual solutions. Examples of creativity tests include the Torrance Tests of Creative Thinking and Baqer Mehdi's test of creative thinking. Different types of creativity tests are discussed, like consequences tests and unusual uses tests.
The document outlines the stages of test construction: planning, preparing, reviewing, and revising. In the planning stage, test objectives and techniques are determined. The preparing stage involves developing test items addressing content, format, and scoring procedures. Experts then review the test for validity, reliability, and usability, providing feedback. In the revising stage, test items are modified based on the review before pretesting. The stages ensure tests accurately measure learners' knowledge and skills.
Meaning and Methods of Estimating Reliability of Test.pptxsarat68
This document discusses the meaning and methods of estimating the reliability of tests. It defines reliability as the consistency or stability of test scores. Several methods for estimating reliability are described, including test-retest reliability, alternate forms reliability, and internal consistency reliability using split-half, Cronbach's alpha, and Kuder-Richardson formulas. Factors that influence reliability coefficients are also examined, such as test length, range of scores, and the ability to guess answers correctly.
Reliability refers to the consistency of test scores. There are three main types of reliability: stability, equivalence, and homogeneity. Stability measures consistency over time, equivalence uses alternative versions of a test, and homogeneity examines internal consistency. Factors like data collection methods, time intervals, and test administration can influence reliability. To improve reliability, tests should have clear, unambiguous questions and objective scoring. Rater reliability specifically measures consistency between raters or judges.
The document discusses the benefits of exercise for mental health. Regular physical activity can help reduce anxiety and depression and improve mood and cognitive functioning. Exercise causes chemical changes in the brain that may help boost feelings of calmness, happiness and focus.
1. The document discusses the definition and key aspects of curriculum. It notes that curriculum encompasses the totality of a student's learning experiences, including both academic and extracurricular activities.
2. Several factors are important to consider in curriculum development, including goals and objectives, the students being educated, and external influences. The curriculum also reflects current educational trends.
3. Educational psychology plays a role in curriculum by providing insights into student development and learning. Psychological factors like learning theories, individual differences, and teaching methods should be considered in curriculum design.
This document discusses objectives, assessment, and developing tests. It begins by defining objectives and their importance in guiding instruction and assessment. It then discusses developing tests, including identifying content domains, Bloom's taxonomy for classifying objective complexity, and creating tables of specification. The document also covers learning outcomes, differences between objectives and outcomes, and taxonomies like Bloom's and SOLO for writing objectives and assessing learning.
it describes the bony anatomy including the femoral head , acetabulum, labrum . also discusses the capsule , ligaments . muscle that act on the hip joint and the range of motion are outlined. factors affecting hip joint stability and weight transmission through the joint are summarized.
A review of the growth of the Israel Genealogy Research Association Database Collection for the last 12 months. Our collection is now passed the 3 million mark and still growing. See which archives have contributed the most. See the different types of records we have, and which years have had records added. You can also see what we have for the future.
How to Setup Warehouse & Location in Odoo 17 InventoryCeline George
In this slide, we'll explore how to set up warehouses and locations in Odoo 17 Inventory. This will help us manage our stock effectively, track inventory levels, and streamline warehouse operations.
This presentation was provided by Steph Pollock of The American Psychological Association’s Journals Program, and Damita Snow, of The American Society of Civil Engineers (ASCE), for the initial session of NISO's 2024 Training Series "DEIA in the Scholarly Landscape." Session One: 'Setting Expectations: a DEIA Primer,' was held June 6, 2024.
How to Fix the Import Error in the Odoo 17Celine George
An import error occurs when a program fails to import a module or library, disrupting its execution. In languages like Python, this issue arises when the specified module cannot be found or accessed, hindering the program's functionality. Resolving import errors is crucial for maintaining smooth software operation and uninterrupted development processes.
Exploiting Artificial Intelligence for Empowering Researchers and Faculty, In...Dr. Vinod Kumar Kanvaria
Exploiting Artificial Intelligence for Empowering Researchers and Faculty,
International FDP on Fundamentals of Research in Social Sciences
at Integral University, Lucknow, 06.06.2024
By Dr. Vinod Kumar Kanvaria
Strategies for Effective Upskilling is a presentation by Chinwendu Peace in a Your Skill Boost Masterclass organisation by the Excellence Foundation for South Sudan on 08th and 09th June 2024 from 1 PM to 3 PM on each day.
Walmart Business+ and Spark Good for Nonprofits.pdfTechSoup
"Learn about all the ways Walmart supports nonprofit organizations.
You will hear from Liz Willett, the Head of Nonprofits, and hear about what Walmart is doing to help nonprofits, including Walmart Business and Spark Good. Walmart Business+ is a new offer for nonprofits that offers discounts and also streamlines nonprofits order and expense tracking, saving time and money.
The webinar may also give some examples on how nonprofits can best leverage Walmart Business+.
The event will cover the following::
Walmart Business + (https://business.walmart.com/plus) is a new shopping experience for nonprofits, schools, and local business customers that connects an exclusive online shopping experience to stores. Benefits include free delivery and shipping, a 'Spend Analytics” feature, special discounts, deals and tax-exempt shopping.
Special TechSoup offer for a free 180 days membership, and up to $150 in discounts on eligible orders.
Spark Good (walmart.com/sparkgood) is a charitable platform that enables nonprofits to receive donations directly from customers and associates.
Answers about how you can do more with Walmart!"
How to Add Chatter in the odoo 17 ERP ModuleCeline George
In Odoo, the chatter is like a chat tool that helps you work together on records. You can leave notes and track things, making it easier to talk with your team and partners. Inside chatter, all communication history, activity, and changes will be displayed.