All psychometric tests Flashcards
What does the PPVT-5 measure?
- measures recptive vocabulary
- assess the knowledge of broad range of vocabulary words
Where can the PPVT-5 be applied?
- screeing for recpetive language disorders
- screening for preschool children
- understanding reading diffculties
- assess word knowledge
What are the two rules applied in the PPVT-5? And can you define these rules?
Basal rule: achieved when an individual has reponded correctly on the first three items
Ceiling rule: achieved wehn an indiviudals has responded incorrectly to six consecutive items
What are the different scoring steps in the PPVT-5?
- Calculate the raw score
- Convert the raw score into standard score
- Determine the confidence interval
- Determine percentile ranks
- Determine normal curve equivalents
- Determine statine
- Determine test age equivalents
- Determine growth scale value
What can be said about the reliability and validity of the PPVT-5?
- excellent split half reliability
- good test-retest reliability
- correlated with relevant variables (language impairmant as example)
What are limitations of the PPVT-5?
- only recpetive knowledge of vocabulary
- educated guess allowed (25% chance)
- normed on individuals with english as dominant language
- does not measure If the individuals can also RETRIEVE a word (just reception)
(Should not be the only criterion for a diagnosis)
What is the purpose of the DVT?
Assessment of attention during rapid visual tracking through accurate selection of target stimuli.
How do you score the DVT?
Total Time = t(page 1) + t(page 2)
Total error = e(page 1) + e(page 2)
What two kind of error can occur in the DVT?
Omission error: did not cross out a six.
Comission error: crossed out a wrong number.
What can the DVT be used for?
Drug use, physical agents, substance abuse or cardiovascular disease, schizophrenia, stroke rehabilitation.
What can be said about the reliabiliy and the validity of the DVT?
- validity evidence from experimental studies
- high test-retest reliability for time
- alternate form reliability for time (around r =.90)
- ONLY moderate test-retest reliability for error (r =.66).
What can be said about the norming of the DVT?
- DVT has been standardized and normed on two adult samples.
- BUT no norms are provided.
What are limitation of the DVT?
- practice effects are not wel enough studied
- time and error correlation is low
- norm files are not included
What are the 5 domains of the NEO-PI-R?
- Openess
- Conscientiousness
- Extraversion
- Agreeableness
- Neuroticism
What are some applications of the NEO-PI-R?
- Bahavioral medice and health psychology
- Psychological research
- In counseling, clinical psychology and psychiatry
- Vocational counseling and industrial/organizational psychology
What are exclusion criteria of the NEO-PI-R?
- test should not be scored if 41 or more reposnes are missing
- the validity should be checked (by Acquiescence, Nay-saying, Random Responding as example)
How do you calculate the scores for the NEO-PI-R?
- Calculate the facet raw scores
- Calculate the domain raw scores
- Profile forms: conversion of raw scores into standard scores.
What can be said about some of the psychometric properties of the he NEO-PI-R?
- internal consistency around .9 for domains
- also high test-retest reliability.
- Factor structure important measure (confirms the idea of 5 domains)
What are some limitations of the NEO-PI-R?
- Social desirability bias
- accuracy of self-description in S-form (depending one one’s self-concept)
(Not used ALONE as a diagnosis
What id the BDI-2 - How many items and what is measured?
Is a 21 item self-report instrument for measuring the severity of depression in adults and adolecents aged 13 years or older.
How is the BDI-2 scored?
- sum rating for the 21 items
- a 4-point sclae ranging form 0 to 3
- hence, maximum score of 63
When looking at the results - how can the BDI-2 be interpreted?
0-13 minimal depression
14-19 mild depression
20-28 moderate depression
29-63 severe depression.
What can be said about the reliability of the BDI-2?
-Test-retest reliability: .93 HIGH (scores are consistent over time)
- Mean Internal consistency: .92 for clinical and .93 for non-clinical HIGH
- HIGH Construct validity: related to Beck Hopelessness Scale
What can be said about the validity of the BDI-2?
- HIGH construct validity: Correlations with other measures of depression
- related to Beck Hopelessness Scale (as example)