Reliable Statistic Pdf For Free

Reliability refers to the extent to which a scale produces consistent results, if the measurements are repeated a number of times. The analysis on reliability is called reliability analysis.

Types of reliability Inter-rater: Different people, same test. Test-retest: Same people, different times. Parallel-forms: Different people, same time, different test. Internal consistency: Different questions, same construct.

HANDOUT ON RELIABILITY A test is said to be reliable if it yields similar results in repeated administrations when the attribute being measured is believed not to have changed in the interval between measurements, even though the test may be administered by different people and alternative forms of the test are used.

The 4 Types of Reliability in Research | Definitions & Examples Type of reliabilityMeasures the consistency of?Test-retestThe same test over time.InterraterThe same test conducted by different people.Parallel formsDifferent versions of a test which are designed to be equivalent.3 more rows ? 08-Aug-2019

There are several methods for computing test reliability including test-retest reliability, parallel forms reliability, decision consistency, internal consistency, and interrater reliability. For many criterion-referenced tests decision consistency is often an appropriate choice.

Reliability where the researcher has to design new set of items to administer later. Inter-rater reliability. It is also called inter-observer rating or an agreement. ... specific measure but by different judges. ... same time. ... same construct or sometimes it is the decision of agreement of the judgments of the same raters.

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).

There are five main goals of reliability and they relate to the different types of reliability, which are as follows: test-retest, interrater/intrarater, parallel or equivalent forms, split half, and internal consistency/coefficient alpha reliability.