Parallel forms reliability
measures the correlation between two equivalent versions of a test. You use it when you have two different assessment tools or sets of questions designed to measure the same thing.
When a test developer gives the same test to the same test of two different occasions the Developer is gathering evidence?
Terms in this set (10)
When a test developer gives the same test to the same group of test takers on two different occasions, the developer is gathering evidence of:
test-retest reliability
.
What do we mean when we say that a test is internally consistent?
Internal consistency
is an assessment of how reliably survey or test items that are designed to measure the same construct actually do so. … A high degree of internal consistency indicates that items meant to assess the same construct yield similar scores.
What is the term used to describe the consistency of test scores?
Reliability
refers to the consistency of a measure. 1 A test is considered reliable if we get the same result repeatedly. For example, if a test is designed to measure a trait (such as introversion), then each time the test is administered to a subject, the results should be approximately the same.
Which of the following is true for two parallel forms of a test?
Item sampling is a source of error variance. Which of the following is true for parallel forms of a test? …
The means and variances of the observed scores are equal for the two forms
.
What is reliability of test?
Reliability is
the extent to which test scores are consistent
, with respect to one or more sources of inconsistency—the selection of specific questions, the selection of raters, the day and time of testing.
What is reliability example?
The term reliability in psychological research refers to
the consistency of a research study or measuring test
. For example, if a person weighs themselves during the course of a day they would expect to see a similar reading.
What are the 4 types of reliability?
| Type of reliability Measures the consistency of… | Test-retest The same test over time. | Interrater The same test conducted by different people. | Parallel forms Different versions of a test which are designed to be equivalent. | Internal consistency The individual items of a test. |
|---|
What is test reliability precision?
Reliability/precision is
one of the most important stan- dards for determining how trustworthy data derived from a psychological test are
. A reliable test is one we can trust to measure each person in approximately the same way every time it is used.
How can a psychological measure be unreliable but valid?
A
measure can be reliable
but not valid, if it is measuring something very consistently but is consistently measuring the wrong construct. Likewise, a measure can be valid but not reliable if it is measuring the right construct, but not doing so in a consistent manner.
What are the 3 types of reliability?
Reliability refers to the consistency of a measure. Psychologists consider three types of consistency:
over time (test-retest reliability), across items (internal consistency), and across different researchers (inter-rater reliability)
.
Why is test reliability important?
Why is it important to choose measures with good reliability? Having good test re-test reliability
signifies the internal validity of a test
and ensures that the measurements obtained in one sitting are both representative and stable over time.
What does the term reliability mean in testing and assessment?
Reliability is
the degree to which an assessment tool produces stable and consistent results
. Types of Reliability. Test-retest reliability is a measure of reliability obtained by administering the same test twice over a period of time to a group of individuals.
How do you test for reliability?
- We can assess reliability by four ways: …
- Parallel forms reliability. …
- Correlation between two forms is used as the reliability index.
- Split-half reliability. …
- Internal consistency reliability. …
- This is called the Coefficient Alpha, also known as Cronbach Alpha. …
- Validity.
What is reliability PPT?
Anastasi: Reliability refers to
the consistency of scores obtained by the same individuals when re- examined
with the same test on different occasions or with different sets of equivalent items or under variable examining conditions.
Which is more important reliability or validity?
Validity is harder
to assess than reliability, but it is even more important. To obtain useful results, the methods you use to collect your data must be valid: the research must be measuring what it claims to measure. This ensures that your discussion of the data and the conclusions you draw are also valid.
