Is the MMPI-2 reliable?

Results indicated that MMPI-2-RF substantive scale scores are reliable, with evidence of good convergent and discriminant validity in both samples.

What type of validity does the MMPI-2 have?

Items. The MMPI-2 is a 567 item, true/false self-report measure of a person’s psychological state. It has nine validity scales (or ‘lie’ scales), assessing for lying, defensiveness, faking good and faking bad and among others [5]. These scales make it very difficult to fake the MMPI-2 results.

Is MMPI-2 RF valid?

The authors examined the impact of unscorable item responses on the validity and interpretability of scores on the MMPI-2/MMPI-2-RF Restructured Clinical (RC) Scales. … Dragon and colleagues found that scale score validity was relatively robust, up to the level of 50% non-responding.

What can the MMPI tell you?

The Minnesota Multiphasic Personality Inventory (MMPI) is designed to assess an individual’s state of mental health. The test items evaluate a number of different issues and can identify struggles in substance abuse, depression, anxiety, and personality disorders with a great degree of accuracy.

Is the MMPI an objective test?

The most frequently used objective test for personality is the MMPI. It was published by Hathaway and McKinley in 1943 and revised in 1951. It is designed for ages 16 and over and contains 566 items to be answered yes or no.

What is the difference between the MMPI-2 and the MMPI-2-RF?

In turn, the MMPI-2 consists of a re-standardization of the original inventory, the MMPI (Hathaway & McKinley, 1940). The new version, the MMPI-2-RF, is shorter (338 vs. 567 items) and contains fewer scales (42 vs. … The MMPI-2-RF, however, only contains the restructured clinical scales.

What is reliability of a scale?

Reliability is the degree to which the measure of a construct is consistent or dependable. … A more reliable measurement may be to use a weight scale, where you are likely to get the same value every time you step on the scale, unless your weight has actually changed between measurements.

How do you read MMPI-2?

MMPI-2 Scoring & Interpretation

Scores are converted to what are called normalized “T scores” on a scale ranging from 30 to 120. The “normal” range of T scores is from 50 to 65. Anything above 65 and anything below 50 is considered clinically significant and open for interpretation by the psychologist.

What makes an MMPI invalid?

High scores, 13 or more, have responded to the MMPI in a “yea-saying” test set, responding mostly “True”. … (MMPI-2) 49 pairs of semantically inconsistent responses. This is possibly the best measure of random, or inconsistent responding. Scores of 13 or more would be considered invalid.

How long are MMPI results valid?

The MMPI, and the MMPI-2’s is the most used and validated test of psychopathology in our field (Graham, 1999). MMPI scores are fairly stable over a period of years. The Si scale was found to be the most stable with a retest correlation of . 74, after a 30-year period (Leon, Gillum, Gillum, & Gouze, 1979).

Can the MMPI-2-RF be useful in assessing mental status?

The MMPI-2-RF aids clinicians in the assessment of mental disorders, identification of specific problem areas, and treatment planning in a variety of settings. The test can be used to help: … Support treatment and management decisions in criminal justice and correctional settings.

How do you interpret the MMPI-2 RF validity scale?

Do MMPI test online?

The MMPI-2 has a total of 567 test items, and it will take you between 60 and 90 minutes to finish. If you’re taking the MMPI2-RF, you should expect to spend between 35 and 50 minutes answering 338 questions. There are booklets available, but you can also take the test online, either by yourself or in a group setting.

What is the MMPI-2 RF used for?

The Minnesota Multiphasic Personality Inventory-2 Restructured Form (MMPI-2-RF), published in 2008, is a 338–item self-report test used by clinicians to assist with assessment of adult psychological dysfunction and treatment planning.

What is one purpose of the validity scales of the MMPI?

All of the MMPI tests use validity scales of varying sorts to help assess the accuracy of each individual’s answers. Since these tests can be used for circumstances like employment screenings and custody hearings, test takers may not be completely honest in their answers.

What is the purpose of validity scales?

A validity scale, in psychological testing, is a scale used in an attempt to measure reliability of responses, for example with the goal of detecting defensiveness, malingering, or careless or random responding.

How do you interpret the MMPI RF?

What is one purpose of the validity?

Validity is the extent to which a test measures what it claims to measure. 1 It is vital for a test to be valid in order for the results to be accurately applied and interpreted.

What is one purpose of the validity scales of the MMPI quizlet?

Validity scales of the MMPI-2 are used to try and correct/detect problems with self reporting such as test taking attitudes or response sets that may skew patient answers. The clinical scales of the MMPI-2 measure personality traits that can be used to diagnose mental conditions.

How many scales does the MMPI 2 have?

An outline of over 120 scales that comprise the 567-item MMPI-2.

What does validity and reliability mean?

Reliability and validity are both about how well a method measures something: Reliability refers to the consistency of a measure (whether the results can be reproduced under the same conditions). Validity refers to the accuracy of a measure (whether the results really do represent what they are supposed to measure).

Why is reliability and validity important?

The purpose of establishing reliability and validity in research is essentially to ensure that data are sound and replicable, and the results are accurate. The evidence of validity and reliability are prerequisites to assure the integrity and quality of a measurement instrument [Kimberlin & Winterstein, 2008].

What is reliable research?

In simple terms, research reliability is the degree to which research method produces stable and consistent results. A specific measure is considered to be reliable if its application on the same object of measurement number of times produces the same results.