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Computer Psych Assessment > Special Abilities Test Software

CONTINUOUS VISUAL RECOGNITION TASK - FVW - 7 YEAR LICENSE

Model 64048

Continuous Visual Recognition Task - FVW - 7 Year License
 
   
 

DETAILS

SYSTEM OVERVIEW

The Schuhfried VTS enables computer-assisted application of a large number of highly diverse psycho-diagnostic tests and measuring procedures. In developing the system much emphasis was placed on transparent structure and largely uniform design. It is therefore simple to operate and easy to understand and does not require any special computer skills.

The VTS basic module is required for administration of any of the available tests.

The Schuhfried VTS supports the administration of both single tests and test batteries. Many of the single tests are available in different test versions. These test versions may differ, for example, in terms of test duration or difficulty or may be parallel forms. They are characterized by different parameters reflecting specific test requirements. They have been designed for administration to a specific population (e.g. psychiatric patients, children, etc.) or for special measuring purposes (e.g. repeated measurements). Test batteries are compiled from the available single tests and test versions.

OVERVIEW

The diverging difficulties of the tasks make the test very suitable to assess the memory performance of each individual respondent. Effects of overstrain or under-stimulation can thus be avoided.

APPLICATION

Assessment of memory performance and cerebral dysfunctions (quantification of mnestic deficits) by means of the decision whether or not an item is newly presented; applicable to people aged 6 years and over.

Main areas of application: clinical psychology (for normal age related and pathological memory loss), neuropsychology, and psychopharmacology.

THEORETICAL BACKGROUND

Most theories assume that every piece of information (item) in memory has a certain familiarity, which rises with the number of presentations. It is also assumed that this familiarity is respondent to random deviations, so that familiar items might be evaluated as new and new items as familiar. Various characteristic values of this overlapping area are used to judge the certainty with which the respondent differentiates between familiar and new items.

Memory deficits may be sensitive indicators of brain function disorders and are the most frequently cited symptom after brain damage has taken place. Recognition performance is also considered an indicator for pathological aging.

ADMINISTRATION

Depending on the test form, words, objects, numbers, meaningless syllables, letter-number combinations, or difficult-to-name items are presented in sequence. The respondent has to decide whether an item is being shown for the first time or is being repeated on screen.

TEST FORMS

The FVW is available in seven test forms (S2 to S8). The forms S2 to S5 differ in level of difficulty. Each test form contains 210 items (105 verbal and 105 non-verbal). S6 and S7 are short forms with a low level of difficulty, especially for use in the clinical field. S8 is a special test form for children.

SCORING

The evaluation is carried out according to the following variables:

  • "Number hits": This variable characterizes the number of correctly recognized items
  • "Number incorrect positive": number of yes-answers during distractions, i.e. an item that has only been shown once is seen as having been shown twice
  • "Mean reaction time hits"
  • "Discrimination ability": distribution-free measurement of the ability of the respondent to differentiate among items presented once or repeatedly.
  • "Answer tendency": expresses whether a respondent answers rather "conservatively" (when in doubt "No") or "liberally" (when in doubt "Yes").
  • "Working time"

RELIABILITY

Reliability (Cronbach's alpha) lies between .78 and .86, depending on test form and sample.

VALIDITY

The test performance in FVW showed no correlation with the cognitive performance of the respondents in the CPM (Coloured Progressive Matrices) and the DAUF (Continuous Attention).

NORMS

Test form S2 was standardized with a sample of N=266 normal persons of ages 10 - 99. There are overall norms and age norms are available. Comparison values of N=53 normal persons of ages 16-90 are available for test form S3. Results of test form S4 can be compared with comparison values of N=78 normal persons of ages 16 - 89. Test form S5 was standardized with a sample of N=159 normal persons of ages 15 - 67. Overall norms and age norms from N=763 adults of ages 17-91 are available for the clinical short form S6. Test form S8 was standardized with a sample of 240 children of ages 6-9.

TESTING TIME

About 15 minutes.

ACCESSORIES

REQUIRED ACCESSORIES

Schuhfried Vienna Test System Image

Schuhfried Vienna Test System
Model 64032

The Schuhfried VTS enables computer-assisted application of a large number of highly diverse psycho-diagnostic tests and measuring procedures.

OPTIONAL ACCESSORIES

Standard Panel Image

Standard Panel
Model 64024

The Standard Panel allows for user-friendly data input and can be used for many different tests.

Universal Panel Image

Universal Panel
Model 64025

The universal panel allows for user-friendly data input and can be used for many different tests.

RELATED PRODUCTS

Continuous Visual Recognition Task - FVW - 50 Administration License Image

Continuous Visual Recognition Task - FVW - 50 Administration License
Model 64048-50

Assessment of memory performance and cerebral dysfunctions (quantification of mnestic deficits) by means of the decision whether or not an item is newly presented.

CONTACT US

Lafayette Instrument Company
3700 Sagamore Pkwy N
Lafayette, IN 47904

Phone: (765) 423-1505
Fax: (765) 423-4111
info@lafayetteinstrument.com

 

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CONTACT US

Lafayette Instrument Company
3700 Sagamore Pkwy N
Lafayette, IN 47904

Phone: (765) 423-1505
Fax: (765) 423-4111

info@lafayetteinstrument.com

Copyright © 2009 - 2017 Lafayette Instrument Company. All Rights Reserved.