STATS - test and measures midterm 2

Defined as the agreement between a test score or measure and the quality is believed to measure

Foundation, operations and applications

Not an actual category. Measure looks like it has validity but it's based on judgment without systematic evidence

Evidence that show the test adequately covers the content it is supposed to measure

Failure to capture important components of a construct

Where scores are influenced by factors irrelevant to the construct

Evidence that support the test ability to predict or correlate with external criteria

It's evidence that supports the underlying theoretical construct being measured by the test

How well a test can predict future outcome like SAT

Most of the data point Falls within a small or limited range of values

Evaluating whether a new test or questionnaire to provide results that are consistent with an existing measure

Measure correlates well with other tests

A test should have low correlation with the measure of unrelated construct

Have items that are designed to match certain specific instructional objective

We can have reliability without validity but we can't have validity without reliability

The way in which questions or statements are presented in a test such as true or false multiple choice or polytomous formats

A type of format where each item provides two Alternatives true or false, one being correct

A type of item format where each item has more than two alternatives. this is multiple choice

Incorrect choices and multiple choice items that test takers can select

A formula used to adjust test scores in multiple choice exams to account for the likelihood of obtaining Answers by random guessing

Answers left blank or not attempted by test takers which can typically not account in correction for guessing formulas

Selecting answers in multiple choice items without any knowledge of the correct answer which may or may not be advantageous

Test with time constraints where the correction for guessing formula may only include items attempted, making random guessing and leaving items like have the same expected effect

A strategy where test takers eliminate obviously incorrect Alternatives and multiple choice items increasing their chances of getting the right answer

A scale that uses strongly disagree to strongly agree to a particular question

Reversing the original scoring used to maintain consistency in a scale construction

Similar to the Likert method, but with greater numbers of choices

The extreme values or labels of the category scale which should be avoided to minimize potential response bias

The phenomenon where ratings on a category format skills may change based on the context or grouping of people

The number of response categories and a format scale varies depending on the level of involvement of respondent, considered sufficient for most waiting tasks

A method where there is a scale that is like a line and and you're supposed to Mark between two endpoints

A statistical method used to calculate a range of values that is likely to contain a population parameter

A method commonly used and personality measurement where subject received a list of adjectives and indicate how characteristic of them

Technique that increases the number of responses but have a subject sort statements into nine piles to describe themselves

Item formats that require subjects to make choices from given alternative

A format that has become less popular in the recent years were subject respond to the list of items

The process of creating tests items including selecting appropriate format wording and response choices

A response option commonly advised against in item writing as it can be problematic and lead to confusion in multiple choice questions

Methods used to evaluate the effectiveness and quality of test items after they have been administered including measures of reliability difficulty and discrimination

The use of clear specific on ambiguous wording and test item to ensure they are accurately assesses the intended trait or knowledge

A deep understanding of the content and concept being tested in order to create accurate effective test item

In the context of a test that measures achievement or ability, item difficulty is defined by the number of people who answer the particular item correctly

Ideal level of difficulty for test items usually halfway between 100% correct responses and the level of success expected by chance

And measure of the value of test items assessing the extent to which individuals who perform well on specific items also perform well on the entire test

A method to assess an item discriminability by comparing performance of individual who have done well to those who have not done well

And approach the evaluate discriminability of test items by finding the correlation between performance on a specific item and overall test performance

Represents the relationship between the tests items difficulty and the proportion of examines who answer it correctly

Is the extent to which high performing individuals on a specific item also perform well on the entire test

An items difficulty level is essential and items should ideally have a difficulty between 30% and 70%

Final version of the test should consider both difficulty and discriminability

And you were approved to test construction that considers the probability of getting specific items correct based on the individual's ability level.

Significant advantage of IRT allowing for personalized assessments

The choice of this design impact the measurement Precision across various ability levels. computer adaptive testing offers the advantage of maintaining consistent measurement position for defined ability levels