Assessment Cutoffs and Mean and SD Flashcards
PAI Mean and SD?
What is the clinical cut off?
Mean T score of 50 (SD-10)
70 clinical cut off 2 SD above the mean 50 +10 +10
PAI Cutoffs
T-score 60 (84th percentile)
Experienced symptoms greater than the general population; Clinically significant
T-score of 70 (98th percentile)
2 SD above mean, Clinically significant
What is a T-Score?
A type of standardized score based on a score distribution that has a mean of 50 and a standard deviation of 10. For example, a raw score that is 1 standard deviation above its mean would be converted to a T score of 60.
Are the WAIS and WISC Standard scores the same?
What are they?
Both WAIS-IV and WISC-5 are reported in standard scores
o MEAN 100
o SD 15
§ People who score 2 SD below mean = ID (<70)
§ People who score 2 SD above mean = Gifted (>129)
What are the 4 validity scales for the PAI and what are the cut offs?
Validity Scales x4 o Positive Impression Management (PIM) – Cut off = 58 o Negative Impression Management (NIM) – Cut off = 73 o Infrequency (INF) – Cut off = 75 o Inconsistency (ICN) – Cut off = 73
What are the K10 cut off scores?
K10
- Max score = 50; Min score = 10 (Scale 1 – 5)
- Significant cut off score = 25 (half the max score)
- K10 does not differentiate between Dep, Anx & Stress, just shows distress
- Need further exploration – not diagnostic (screener)
SDQ - what are the 4 scales? And what is the highest score?
• 4 Problem Scales
o Emotion
o Conduct
o Hyperactivity
o Peers
•
Add all Problem scales for total difficulty score
o Highest Score = 40
•
To determine how much the child’s problems impacted aspects of their life – can
use supplementary Impact Score “extended version”
Strengths & Difficulties Questionnaire (SDQ)
What is the age group for the SDQ?
- Used for youth/child & Adolescents (4 – 17 years)
- Screening tool – need further Ax to diagnose
List of means and SD’s
WAIS - WISC - PAI - SDQ - K10 - DASS - 16pf
PAI - Mean T score of 50 (SD-10) (PIM) – Cut off = 58 (NIM) – Cut off = 73 (INF) – Cut off = 75 (ICN) – Cut off = 73
WISC o MEAN 100 o SD 15
WAIS o MEAN 100 o SD 15
SDQ - Highest score 40 ( 10 on each sub-scale 1. Emotion 2. Conduct 3. Hyperactivity 4. Peers)
K10 - Max score = 50; Min score = 10 (Scale 1 – 5) Significant cut off score = 25 (half the max score)
DASS -
K10 Highest Score?
50
Significant K10 score mild disorder
20 and above
K10 moderate or severe
above 25 moderate above 30 severe
SDQ - What is the highest score?
40
On the problem scales in the SDQ , emotion, hyperactivity, conduct and Peers what is the highest score for each scale?
10
10 x 4 =40
Prosocial scale opposite out of 10 but high score is good
On the SDQ what does it mean if someone is in the 97th Percentile for the hyperactivity scale?
That this child has more hyperactivity symptoms than 97% of his peers;
fewer than 97 of peers - you need to know what it means
50% for peer problem - they are average
80% for conduct problems - they have more conduct problems than 80% of their peers
What are the ORS and the SRS?
Outcome Rating Scale
Session Rating Scale
Scores out of 10cm line
Measure the effectiveness of Treatment
MMSe cutoffs
Less than 24 abnormal
PHQ-9 Scoring Range is?
0-27
PHQ-9 Cutoffs
PH9-Q for depression
0-4 minimal
5-9 Mild
10-14 Moderate
15-19 Moderately severe
20-27 Severe
DASS - 42 Cutoffs
DASS - 42 half for DASS - 21
Depression 28+ Very Severe 14-30 Moderate
Anxiety 20+ Very Severe 10- 14 Moderate
Stress 34+ Very Severe 19-25 Moderate
WISC Reverse Rule
If a child does not get 2 answers correct in a row you reverse score to previous items until 2 are correct - then proceed to further items
WISC Reverse Rule more information
Most tests with Starting Rules also have Reverse Rules (Digit Span, Coding, Letter-Number Sequencing, Symbol Search, and Cancellation by the exceptions). If the child does not obtain a perfect score on both of the first two items administered, the examiner must give items in reverse sequence until two items in a row at a perfect score. It is assumed that the child would have passed the previous items at that point, and full credit for these unadministered items is given.
So, say that child obtained full credit on item 4, the starting point, but partial credit on item 5. The examiner would reverse and administer item 3. If item 3 received full credit (thus two in a row with full credit - items 3 and 4), the examiner would assume full credit for items 1 and 2, and continue to administer item 6.
Note, however, it is possible to meet the Discontinue Rule while applying that Reverse Rule. Continue administering items in reverse sequence until you get two in a row that receive full credit. Assume full credit only on items before the two full credit items, and if you go all the way back to item 1 without two in a row, all you can do is go forward to the item after you reversed and go until you meat the Discontinue Rule.
GAI - when would you use it instead of FSIQ?
The practitioner may wish to consider using the GAI in a number of clinical situations, not
limited to, but including the following:
a significant and unusual discrepancy exists between VCI and WMI,
a significant and unusual discrepancy exists between PRI and PSI,
a significant and unusual discrepancy exists between WMI and PSI, or
a significant and unusual subtest discrepancy between subtests within WMI and/or PSI.
WISC Indicies - what are they?
VCI - Similarities and Vocab
VSI - Block and Visual Puzzles
FRI - Matrix Reasoning and Figure Weights
WMI - Digit and Picture Span
PSI - Coding and Symbol Search
WAIS indicies what are they?
VCI - Similarities, Vocab and Information
PRI - Block Design, Matrix Reasoning and Visual Puzzles
WMI - Digit Span and Arithmetic
PSI - Symbol Search and Coding
WISC IV AND WISC V - PRI differences?
The Verbal Comprehension, Working Memory, and Processing Speed Indices remain in the WISC-V. The Perceptual Reasoning Index from the WISC-IV has now been split into a Visual Spatial Index and a Fluid Reasoning Index
