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Copyright 2011 Pearson Education, Inc. or its affiliate(s). All rights reserved. Preschool Language Scales-5 Assessing Children from Birth through 7 Nancy.

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Presentation on theme: "Copyright 2011 Pearson Education, Inc. or its affiliate(s). All rights reserved. Preschool Language Scales-5 Assessing Children from Birth through 7 Nancy."— Presentation transcript:

1 Copyright 2011 Pearson Education, Inc. or its affiliate(s). All rights reserved. Preschool Language Scales-5 Assessing Children from Birth through 7 Nancy Castilleja, MA CCC-SLP September 9, 2011

2 Copyright 2011 Pearson Education, Inc. or its affiliate(s). All rights reserved. Course objectives describe at least two principles identified by ASHA as best practices in early language assessment identify three key differences between PLS-4 and PLS-5 describe two research studies conducted with the PLS-5

3 Copyright 2011 Pearson Education, Inc. or its affiliate(s). All rights reserved. Agenda ASHA: best practices in early language assessment PLS-5 vs. PLS-4 – Start points – Age level placements – Scoring PLS-5 Research Studies – Development – Minimizing Bias – Standardization – Reliability & Validity Q & A

4 Copyright 2011 Pearson Education, Inc. or its affiliate(s). All rights reserved. Roles and Responsibilities of SLPs in Early Intervention /policy Four guiding principles 1. family-centered and culturally and linguistically responsive 2. developmentally supportive and promote participation in natural environments 3. comprehensive, coordinated, and team based 4. based on the highest quality evidence available

5 Copyright 2011 Pearson Education, Inc. or its affiliate(s). All rights reserved. Family-centered and culturally and linguistically responsive – Caregiver participation in testing – Caregiver-selected and caregiver-identified social routines and vocabulary tested for very young children – Extensive bias review and widespread testing with a diverse sample has resulted in Familiar home vocabulary and contexts Dialectal, regional, and cultural variations to identify responses that are accepted as correct – Home Communication Questionnaire

6 Copyright 2011 Pearson Education, Inc. or its affiliate(s). All rights reserved. Sample from the Home Communication Questionnaire

7 Copyright 2011 Pearson Education, Inc. or its affiliate(s). All rights reserved. Developmentally supportive and promote participation in natural environments Observation of naturally-occurring behaviors for younger children Credit given for spontaneous productions in and outside the assessment room Developmentally appropriate skills assessed

8 Copyright 2011 Pearson Education, Inc. or its affiliate(s). All rights reserved. Comprehensive, coordinated, and team based Provides a survey of language skills in the areas of – Social communication – Semantics – Morphology – Syntax – Articulation Useful for arena assessment; can be administered by professionals in child development teams

9 Copyright 2011 Pearson Education, Inc. or its affiliate(s). All rights reserved. Based on the highest quality evidence available Current review of research for item development Expert review Current normative data

10 Copyright 2011 Pearson Education, Inc. or its affiliate(s). All rights reserved. What is new? Current norms for a wider age range: based on the 2008 update of the U.S. Census for children birth through 7:11 Streamlined administration, with new suggested start points and test items that involve manipulatives grouped for smoother transitions during testing New test items in the areas of play, understanding false beliefs, and literacy New Growth Scale Values, Evidence-based scores you can use to track progress

11 Copyright 2011 Pearson Education, Inc. or its affiliate(s). All rights reserved. Based on the performance of children in standardization… New ceiling rule – Basal: 3 consecutive correct responses – Ceiling: 6 (not 7) consecutive errors – Because PLS-5 tests a variety of skills, a child could obtain one or more score points if you discontinue testing earlier

12 Copyright 2011 Pearson Education, Inc. or its affiliate(s). All rights reserved. Score multiple test items with one procedure

13 Copyright 2011 Pearson Education, Inc. or its affiliate(s). All rights reserved. New test items For ages months – additional items assessing play For ages 3 through 4 years – new items assessing book handling and concept of print For ages 5 through 7 years – new items testing – Theory of Mind – Integrated language skills such as use of synonyms – Emergent literacy skills such as naming letters and understanding prefixes

14 Copyright 2011 Pearson Education, Inc. or its affiliate(s). All rights reserved. New item: Uses synonyms

15 Copyright 2011 Pearson Education, Inc. or its affiliate(s). All rights reserved. New Demonstration Item for Understands Size/Sequence Concepts (smallest, biggest)

16 Copyright 2011 Pearson Education, Inc. or its affiliate(s). All rights reserved. New Practice item: Uses Possessive Pronouns: hers, his

17 Copyright 2011 Pearson Education, Inc. or its affiliate(s). All rights reserved. Items integrating Theory of Mind concepts Some items requiring that the child make inferences about anothers feelings or intentions

18 Copyright 2011 Pearson Education, Inc. or its affiliate(s). All rights reserved. Understanding false beliefs

19 Copyright 2011 Pearson Education, Inc. or its affiliate(s). All rights reserved. What is different? Revised test items, based on clinicians and reviewers feedback Updated Articulation Screener with picture stimuli Start points Age level placements of certain developmental skills Normative scores

20 Copyright 2011 Pearson Education, Inc. or its affiliate(s). All rights reserved. Revised Test Items

21 Copyright 2011 Pearson Education, Inc. or its affiliate(s). All rights reserved. Modified Articulation Screener

22 Copyright 2011 Pearson Education, Inc. or its affiliate(s). All rights reserved. Frequently Asked Questions

23 Copyright 2011 Pearson Education, Inc. or its affiliate(s). All rights reserved. Why is responds to speaker by smiling now at age 6-8 months? Start Points are not developmental age levels

24 Copyright 2011 Pearson Education, Inc. or its affiliate(s). All rights reserved. Start Points are not developmental age levels

25 Copyright 2011 Pearson Education, Inc. or its affiliate(s). All rights reserved. Why do so many of the PLS-5 test items appear at later age levels than PLS-4? Some clinicians are confusing the Start Points with Developmental Levels Criterion change for item placement

26 Copyright 2011 Pearson Education, Inc. or its affiliate(s). All rights reserved.

27 Why do so many of the PLS-5 test items appear at later age levels than PLS-4? Some clinicians are confusing the Start Points with Developmental Levels Criterion change for item placement at developmental levels The items were modified in some way – The task is different – Sub-items are different – The number of sub-items has changed – The pass criterion has changed

28 Copyright 2011 Pearson Education, Inc. or its affiliate(s). All rights reserved. Uses past tense Age 4: 7% Age 4:6: 42% Age 5:0: 22% Age 5:6 58% Age 7: 78%

29 Copyright 2011 Pearson Education, Inc. or its affiliate(s). All rights reserved. PLS-5 age level placements do not match placement from Browns studies According to Owens (2008), the age of mastery for Browns developmental milestones is based on the research of: – Bellugi & Brown (1964) – Brown (1973) – Miller (1981) Demographic characteristics of the sample in 2010 When you review performance of a high SES sample, performance on PLS-5 tasks match Browns seminal research

30 Copyright 2011 Pearson Education, Inc. or its affiliate(s). All rights reserved. Some children are scoring higher on the PLS-5? Im concerned that children will no longer qualify for services. PLS-4/PLS-5 correlational study – N = 134 – Average change: AC: 1 point lower than PLS-4 EC: 1.5 points lower than PLS-4 Total Language: 1 point lower – Range of score change for individuals higher Protocols weve reviewed after publication Scores sometimes higher, sometimes lower Performance differences Item criterion differences No change in eligibility unless a child qualified with a 77 on PLS-4

31 Copyright 2011 Pearson Education, Inc. or its affiliate(s). All rights reserved. On the EC scale, the child hardly needs to talk at all at age 2:0! At age 2:0, 64-71% of the normative sample – Used words more than gestures to communicate – Used words for a variety of pragmatic functions – Used different word combinations That means 29-36% of children did not… By age 2:6 to 2:11, the majority of the children in the sample met criterion for these behaviors

32 Copyright 2011 Pearson Education, Inc. or its affiliate(s). All rights reserved. Standardization Research Over 1800 children were tested for standardization and related reliability and validity studies from December 2009 through August 2010 The standardization sample was collected by 189 clinicians in 42 states in the United States

33 Copyright 2011 Pearson Education, Inc. or its affiliate(s). All rights reserved. Technical Information – Demographic Information – Validity Studies – Clinical studies Ages 1-2:11 language delay study Ages 3:0-7:11 language disorder study Sensitivity/specificity Positive/negative predictive power – Correlations with other assessments PLS-4 CELF Preschool-2 – Reliability Studies – Internal consistency: typical – Internal consistency: disorder.96 to.98 – Inter-rater reliability:.95 to.98 – Inter-scorer agreement:.91 to 1.0 – Case studies – Autism – Hearing Impairment

34 Copyright 2011 Pearson Education, Inc. or its affiliate(s). All rights reserved. Sample mirrors March 2008 Update of the U.S. Census: Race/Ethnicity

35 Copyright 2011 Pearson Education, Inc. or its affiliate(s). All rights reserved. Sample mirrors March 2008 Update of the U.S. Census: Parent Education

36 Copyright 2011 Pearson Education, Inc. or its affiliate(s). All rights reserved. Sample mirrors March 2008 Update of the U.S. Census: Region

37 Copyright 2011 Pearson Education, Inc. or its affiliate(s). All rights reserved. Where Children in the PLS-5 Sample Spend the Majority of their Day

38 Copyright 2011 Pearson Education, Inc. or its affiliate(s). All rights reserved. Are children with disabilities included in the PLS-5 sample?

39 Copyright 2011 Pearson Education, Inc. or its affiliate(s). All rights reserved. PLS-4/PLS-5 Correlations

40 Copyright 2011 Pearson Education, Inc. or its affiliate(s). All rights reserved. CELF Preschool-2/PLS-5 Correlations

41 Copyright 2011 Pearson Education, Inc. or its affiliate(s). All rights reserved. Clinical Study: Developmental Delay

42 Copyright 2011 Pearson Education, Inc. or its affiliate(s). All rights reserved. Clinical Study: Receptive-Expressive Disorder

43 Copyright 2011 Pearson Education, Inc. or its affiliate(s). All rights reserved. Sensitivity/Specificity: NPP/PPP with 50% Matched Sample ACECTotal Cut Score SD and Predictive Power Matched Sample 50% -1 SD PPP NPP SD PPP NPP SD PPP NPP Note. PPP is Positive Predictive Power and NPP is Negative Predictive Power.

44 Copyright 2011 Pearson Education, Inc. or its affiliate(s). All rights reserved. Minimizing Bias Current literature review Clinician surveys Research studies – Pilot – Tryout (includes bias oversample) – Standardization Statistical analyses of bias Expert review

45 Copyright 2011 Pearson Education, Inc. or its affiliate(s). All rights reserved.

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48 Questions related to the kit 1. Do I need to purchase the manipulatives or can I collect my own? 2. Why cant we have a Picture Manual we can wipe clean?

49 Copyright 2011 Pearson Education, Inc. or its affiliate(s). All rights reserved. Questions related to the kit How do you get the bear and the pitcher to fit in the box?

50 Copyright 2011 Pearson Education, Inc. or its affiliate(s). All rights reserved. I cant get the bear to sit!

51 Copyright 2011 Pearson Education, Inc. or its affiliate(s). All rights reserved. Questions, concerns, comments?


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