Bayley Scales of Infant and Toddler Development | Fourth Edition

Bayley-4
Bayley-4 is the most comprehensive assessment tool for determining developmental delays in children. Guidance on using this test in your telepractice.

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  • Bayley-4 Complete Kit (Digital)
    A102001600062 Niveau de Qualification B

    Includes Administration Manual (Digital), Technical Manual (Digital), 25 Q-Global usages for on-screen administration, scoring and reporting of Cognitive, Language, Motor, Social-Emotional and Adaptive-Behavior domains (Digital), 25 Motor-Response Booklets (Print), Stimulus Book (Print), Complete Kit Manipulative Set (ball puzzle, bank, bell, blocks, blue block set, bottle, buttons sleeve, car, cat puzzle, clear box, 10 coins, comb, connecting block set, 2 crayons, 2 cups, 9 disks, dog puzzle, doll, 3 ducks, ice cream cone puzzle, large ball, memory cards set A and set B, mirror, pegboard, pegs, 2 pencils, pink and blue board, rattle, red block set, ring with string, ring without string, shoelace, small ball, 2 spoons, squeeze toy, stepping path, storybook), Rolling Case, Introductory Online Training. Once ordered, the digital assets are accessible by logging into Q-global and visiting the Q-global Resource Library. They are view-only digital files.

    $1,592.50

    1-4 $1,592.50
    5-9 $1,512.90
    10-24 $1,433.30
    25-50 $1,353.60
    51+ $1,274.00
    Les économies sont estimées
  • Bayley-4 Complete Kit (Print) - Bayley-4 Screening Test Complete Kit (Print) Combo
    A102001600042 Niveau de Qualification B

    Includes Bayley-4 Complete Kit [Administration Manual (Print), Technical Manual (Print), Stimulus Book (Print), 25 Cognitive, Language, and Motor Record Forms (Print), 25 Motor-Response Booklets, 25 Social-Emotional and Adaptive-Behavior Questionnaires (Print), 25 Caregiver Reports (Print), Observational Checklist (Print), Complete Kit Manipulative Set (ball puzzle, bank, bell, blocks, blue block set, bottle, buttons sleeve, car, cat puzzle, clear box, 10 coins, comb, connecting block set, 2 crayons, 2 cups, 9 disks, dog puzzle, doll, 3 ducks, ice cream cone puzzle, large ball, memory cards set A and set B, mirror, pegboard, pegs, 2 pencils, pink and blue board, rattle, red block set, ring with string, ring without string, shoelace, small ball, 2 spoons, squeeze toy, stepping path, storybook), Rolling Case, Introductory Online Training] and Bayley-4 Screening Test Kit [Bayley-4 Screening Test Manual (Print), Screening Test Stimulus Book (Print), 25 Screening Test Record Forms (Print), Observation Checklist (Print), Screening Kit Manipulative Set (bank, bell, blocks, blue block set, bottle, cat puzzle, 10 coins, connecting block set, 2 crayons, 2 cups, doll, ducks, large ball, memory cards set A and set B, pegboard), Bag]

    $2,336.20

    1-4 $2,336.20
    5-9 $2,219.40
    10-24 $2,102.60
    25-50 $1,985.80
    51+ $1,869.00
    Les économies sont estimées
  • Bayley-4 Complete Manipulative Set and Rolling Bag
    A102001600060 Niveau de Qualification B

    Includes ball puzzle, bank, bell, blocks, blue block set, bottle, buttons sleeve, car, cat puzzle, clear box, 10 coins, comb, connecting block set, 2 crayons, 2 cups, 9 disks, dog puzzle, doll, 3 ducks, ice cream cone puzzle, large ball, memory cards set A and set B, mirror, pegboard, pegs, 2 pencils, pink and blue board, rattle, red block set, ring with string, ring without string, shoelace, small ball, 2 spoons, squeeze toy, stepping path, storybook, rolling bag

    $778.50

    1-4 $778.50
    5-9 $739.60
    10-24 $700.70
    25-50 $661.70
    51+ $622.80
    Les économies sont estimées
    Prêt à être expédié dans :1 semaine
  • Bayley-4 Complete Kit (Print)
    A102001600041 Niveau de Qualification B

    Includes Administration Manual (Print), Technical Manual (Print), Stimulus Book (Print), 25 Cognitive, Language, and Motor Record Forms (Print), 25 Motor-Response Booklets (Print), 25 Social-Emotional and Adaptive-Behavior Questionnaires (Print), 25 Caregiver Reports (Print), Observational Checklist (Print), Manipulative Set (ball puzzle, bank, bell, blocks, blue block set, bottle, buttons sleeve, car, cat puzzle, clear box, 10 coins, comb, connecting block set, 2 crayons, 2 cups, 9 disks, dog puzzle, doll, 3 ducks, ice cream cone puzzle, large ball, memory cards set A and set B, mirror, pegboard, pegs, 2 pencils, pink and blue board, rattle, red block set, ring with string, ring without string, shoelace, small ball, 2 spoons, squeeze toy, stepping path, storybook), Rolling Case, Introductory Online Training

    $2,104.60

    1-4 $2,104.60
    5-9 $1,999.50
    10-24 $1,894.30
    25-50 $1,789.00
    51+ $1,683.80
    Les économies sont estimées
  • Bayley-4 Motor Scale Kit (Print)
    A103000179713 Niveau de Qualification B

    Includes Administration Manual (Print), Technical Manual (Print), 25 Motor Record Forms (Print), 25 Motor-Response Booklets (Print), Motor Scale Manipulative Set (bank, bell, blocks, blocks with holes, bottle, button sleeve, coins, connecting block set, crayon, pegboard, pencil, rattle, ring with string, ring without string, shoelace, small ball, storybook, stepping path), Bag, Introductory Online Training

    $877.70

    1-4 $877.70
    5-9 $833.80
    10-24 $789.90
    25-50 $746.10
    51+ $702.20
    Les économies sont estimées
  • Bayley-4 Q-global Administration Manual (Digital)
    A102001600063 Niveau de Qualification B

    Once ordered, the digital asset is accessible by logging into Q-global and visiting the Q-global Resource Library. It is a view-only digital file.

    $371.90

    1-4 $371.90
    5-9 $353.30
    10-24 $334.70
    25-50 $316.10
    51+ $297.50
    Les économies sont estimées
  • Bayley-4 Q-global Technical Manual (Digital)
    A102001600064 Niveau de Qualification B

    Once ordered, the digital asset is accessible by logging into Q-global and visiting the Q-global Resource Library. It is a view-only digital file.

    $371.90

    1-4 $371.90
    5-9 $353.30
    10-24 $334.70
    25-50 $316.10
    51+ $297.50
    Les économies sont estimées
  • Bayley-4 Administration Manual (Print)
    A102001600043 Niveau de Qualification B

    $378.90

    1-4 $378.90
    5-9 $360.00
    10-24 $341.10
    25-50 $322.10
    51+ $303.20
    Les économies sont estimées
  • Bayley-4 Technical Manual (Print)
    A102001600044 Niveau de Qualification B

    $378.90

    1-4 $378.90
    5-9 $360.00
    10-24 $341.10
    25-50 $322.10
    51+ $303.20
    Les économies sont estimées
    Prêt à être expédié dans :6-7 semaines
  • Bayley-4 Stimulus Book (Print)
    A102001600045 Niveau de Qualification B

    $591.30

    1-4 $591.30
    5-9 $561.80
    10-24 $532.20
    25-50 $502.60
    51+ $473.10
    Les économies sont estimées
  • Bayley-4 Cognitive Language Motor Q-global Administration-Report Qty 1 (Digital)
    A102001600065 Niveau de Qualification B

    $9.00

    1-4 $9.00
    5-9 $8.60
    10-24 $8.10
    25-50 $7.70
    51+ $7.20
    Les économies sont estimées
  • Bayley-4 Q-global Scoring Subscription 1 Year (Digital)
    A103000166050 Niveau de Qualification B

    Includes unlimited scoring per user within an account, for assessments administered using paper record forms.

    $65.60

    1-4 $65.60
    5-9 $62.30
    10-24 $59.10
    25-50 $55.80
    51+ $52.50
    Les économies sont estimées
  • Bayley-4 Caregiver Report Forms Qty 25 (Print)
    A102001600051 Niveau de Qualification B

    $151.90

    1-4 $151.90
    5-9 $144.30
    10-24 $136.70
    25-50 $129.10
    51+ $121.50
    Les économies sont estimées
  • Bayley-4 Motor Record Forms Qty 25 (Print)
    A102001600050 Niveau de Qualification B

    $111.10

    1-4 $111.10
    5-9 $105.60
    10-24 $100.00
    25-50 $94.40
    51+ $88.90
    Les économies sont estimées
  • Bayley-4 Observation Checklist Qty 1 (Print)
    A102001600058 Niveau de Qualification B

    Includes a laminated form for re-use

    $18.70

    1-4 $18.70
    5-9 $17.70
    10-24 $16.70
    25-50 $15.90
    51+ $14.90
    Les économies sont estimées
    Prêt à être expédié dans :6-7 semaines
  • Bayley-4 Cognitive Record Forms Qty 25 (Print)
    A102001600048 Niveau de Qualification B

    $120.30

    1-4 $120.30
    5-9 $114.30
    10-24 $108.20
    25-50 $102.20
    51+ $96.20
    Les économies sont estimées
  • Bayley-4 Language Record Forms Qty 25 (Print)
    A102001600049 Niveau de Qualification B

    $120.30

    1-4 $120.30
    5-9 $114.30
    10-24 $108.20
    25-50 $102.20
    51+ $96.20
    Les économies sont estimées
  • Bayley-4 Cognitive Language Motor Record Forms Qty 25 (Print)
    A102001600046 Niveau de Qualification B

    $221.80

    1-4 $221.80
    5-9 $210.70
    10-24 $199.60
    25-50 $188.50
    51+ $177.50
    Les économies sont estimées
  • Bayley-4 Cognitive Language Motor Record Forms Qty 25 (Print) and Motor Response Booklets Qty 25 (Print)
    A102001600093 Niveau de Qualification B

    $268.00

    1-4 $268.00
    5-9 $254.60
    10-24 $241.10
    25-50 $227.70
    51+ $214.40
    Les économies sont estimées
    Prêt à être expédié dans :2-3 semaines
  • Bayley-4 Social-Emotional and Adaptive Behavior Q-global Administration-Report Qty 1 (Digital)
    A102001600066 Niveau de Qualification B

    $6.80

    1-4 $6.80
    5-9 $6.50
    10-24 $6.10
    25-50 $5.80
    51+ $5.50
    Les économies sont estimées
  • Bayley-4 Social-Emotional and Adaptive Behavior Scales Questionnaires Qty 25 (Print)
    A102001600047 Niveau de Qualification B

    $221.80

    1-4 $221.80
    5-9 $210.60
    10-24 $199.60
    25-50 $188.50
    51+ $177.30
    Les économies sont estimées
  • Bayley-4 Motor Response Booklets Qty 25 (Print)
    A102001600056 Niveau de Qualification B

    $55.50

    1-4 $55.50
    5-9 $52.70
    10-24 $49.90
    25-50 $47.10
    51+ $44.30
    Les économies sont estimées
  • Practical Applications of the Bayley-4 On Demand 5.5 Hours
    A103000323407 Niveau de Qualification B

    This interactive learning track covers practical considerations for administering and interpreting the Bayley-4 in clinical practice, using both clinical and typically developing video case studies.

    Participants will have access to this course for one year.

    Training orders will be processed within 5-7 business days of order placement. On-demand training is accessed via a welcome email sent to the email address associated with the order.

    $275.00

  • Practical Applications of the Bayley-4 On Demand 5.5 Hours with CE
    A103000323408 Niveau de Qualification B

    This interactive learning track with Dr Betty Hutchon DSc MRCOT, Honorary Consultant Neurodevelopmental Occupational Therapist at University College London Hospital (UCLH)covers practical considerations for administering and interpreting the Bayley-4 in clinical practice, using both clinical and typically developing video case studies. Participants will have access to this course for one year and are eligible to earn CE.

    Training orders will be processed within 5-7 business days of order placement. On-demand training is accessed via a welcome email sent to the email address associated with the order.

    $330.00

  • Bayley-4 Online Independent Study On Demand 12 Hours
    A103000323595 Niveau de Qualification B

    This self-paced 12-hour independent study program provides detailed guidance for the administration, scoring, and interpretation of the Bayley Scales of Infant and Toddler Development™, Fourth Edition (Bayley-4). The program consists of six modules. Participants can earn a certificate of completion for each Bayley-4 module and will have access to this course for one year.

    Training orders will be processed within 5-7 business days of order placement. On-demand training is accessed via a welcome email sent to the email address associated with the order.

    $275.00

  • Bayley-4 Online Independent Study On Demand 12 Hours with CE
    A103000164189 Niveau de Qualification B

    This self-paced 12-hour independent study program provides detailed guidance for the administration, scoring, and interpretation of the Bayley Scales of Infant and Toddler Development™, Fourth Edition (Bayley-4). The program consists of six modules. Participants can earn a certificate of completion for each Bayley-4 module. Participants will have access to this course for one year and are eligible to earn CE.

    Training orders will be processed within 5-7 business days of order placement. On-demand training is accessed via a welcome email sent to the email address associated with the order.

    $275.00

  • Bayley-4 Overview Live Webinar 3 Hours
    A103000164191 Niveau de Qualification B

    This 3-hour session provides a broad overview of administration and scoring, and basic interpretation of Bayley-4 results. Price includes up to 40 people per session.

    Training orders will be processed within 5-7 business days of order placement. A training consultant will contact you to coordinate your training. Training dates are scheduled no earlier than 5 weeks from order placement.

    $2,295.00

  • Bayley-4 Administration, Scoring, and Basic Interpretation In Person 6 Hours
    A103000164190 Niveau de Qualification B

    This 6-hour session is designed for individuals who require a comprehensive understanding of the Bayley-4. Participants will learn to administer and score items on the Bayley-4 using the paper/pencil or digital application. Price includes up to 40 people per session.

    Training orders will be processed within 5-7 business days of order placement. A training consultant will contact you to coordinate your training. Training dates are scheduled no earlier than 5 weeks from order placement.

    $7,645.00

  • Bayley-4 Administration, Scoring, and Basic Interpretation Live Webinar 6 Hours
    A103000072438 Niveau de Qualification B

    This 6-hour session is designed for individuals who require a comprehensive understanding of the Bayley-4. Participants will learn to administer and score items on the Bayley-4 using the paper/pencil or digital application. Price includes up to 40 people per session.

    Training orders will be processed within 5-7 business days of order placement. A training consultant will contact you to coordinate your training. Training dates are scheduled no earlier than 5 weeks from order placement.

    $4,370.00

  • Bayley-4 Live Question and Answer Virtual 1 Hour
    A103000072416 Niveau de Qualification B

    Price includes up to 40 people per session. This 1-hour Q&A session supports participants who have attended a previous session or are familiar with the assessment. A Pearson expert will meet with participants to address follow-up questions and support specific assessment-related needs. To use the hour efficiently, participants may submit questions in advance. Q&A sessions do not include handouts or slides.

    Training orders will be processed within 5-7 business days of order placement. A training consultant will contact you to coordinate your training. Training dates are scheduled no earlier than 5 weeks from order placement.

    $550.00

Aperçu

Date de publication:

September 2019

Groupe d’âge:

16 days to 42 months

Notation/Interprétation:

Subtest level scaled scores, domain level composite scores, percentile ranks, confidence intervals, developmental age equivalents, and growth scale values

Niveau de qualification:

B

Temps de passation:

30 to 70 minutes (depending upon age of child)

Passation:

Paper-and-pencil; Q-global

Options de notation:

Q-global (web-based); Manual

Télépratique:
Guidance on using this test in your telepractice

Détails du Produit

Professionals have relied on the Bayley Scales of Infant and Toddler Development™ for more than 50 years to identify potential delays in children and get interventions in place early on.

Benefits

  • Use caregiver responses to support the scoring of certain items.
  • Determine the need for further in-depth assessment.
  • Administer one or more domain subtests individually.
  • Save significant time through shortened adaptive behavior content from Vineland 3.

Features

The new version of the Bayley Scales of Infant and Toddler Development features:

  • Digital delivery option via Q-global combines the record form and administration manual, which allows greater flexibility, ease of use and improved accuracy.
  • Content updates made based on research and user feedback.
  • Updated normative data and clinical studies.
  • Includes complimentary Introductory Online Training

Five developmental domains

Telepractice

Find out how to use this test in your telepractice.

Learn more

Sample Reports

The following sample reports are available for Bayley-4.

 

Formation

Bayley-4 Overview

Watch this video to learn more about the new features of Bayley-4.

Watch video

Bayley-4 Training

Introductory Online Training: Provided complimentary with purchase of a complete Bayley-4 Kit

  • For paper kit purchases, please see the welcome letter with your kit for access to the training
  • For digital kit purchases, please access the welcome letter in the Q-global Resource Library for Bayley-4

Bayley-4 Online Independent Study Training Program

This fee-based online, independent study program provides detailed guidance for the administration and scoring of the Bayley-Scales of Infant and Toddler Development-Fourth Edition (Bayley-4).

Available to order via the pricing and ordering tab. Item ID: A103000164189

Note: Training orders will be processed within 72 business hours of order placement. The training is accessed via a welcome email sent to the email address associated with the order.

Bayley-4 Online Independent Study Training Program

Custom training options:

Interested in Bayley-4 training opportunities? Check out our available custom options.

View training options

 

Ressources

FAQ

Bayley-4 2023 normative, reliability, and validity information for the Cognitive, Language, and Motor Scales Update

When will materials be updated?

Postpublication research conducted by Pearson on the Bayley-4 and the Bayley-4 Screening Test indicated a need to revise the normative, reliability, and validity information for the Cognitive, Language, and Motor Scales. In response to this Pearson is updating the following materials:

  • Bayley-4 Administration Manual will be replaced to provide updated normative tables for the Cognitive, Language, and Motor Scales
    • The digital manual was replaced in Q-global on June 28, 2023
    • The print manual will ship to customers in July 2023
  • The Bayley-4 Technical Manual will be replaced to provide updated reliability and validity tables for the Cognitive, Language, and Motor Scales
    • The digital manual was replaced in Q-global on June 28, 2023
    • The print manual will ship to customers in July 2023
  • Q-global scoring was updated on June 28, 2023 with the new normative data
  • Bayley-4 Screening Test Manual will be updated with revised reliability and validity tables
    • The digital manual will be replaced in July 2023
    • The print manual is not being replaced; instead, updated reliability and validity tables to insert into your manual can be requested by contacting customer support. The updated tables do not impact the use or interpretation of the test and will be corrected at the next reprint.

How will I know if I’m using the correct version?

From July 2023, to ensure you are using the new, updated version(s), please note that the copyright information (found on the second page) now includes the year 2023:  

Copyright © 2019/2023 NCS Pearson, Inc. All rights reserved. Portions of this work were previously published. 

Normative copyright © 2004, 2016, 2019, 2023 NCS Pearson, Inc.  

All rights reserved. 

I have not received the new print materials. What can I do?

If you purchased any of the above print materials before July 2023 and have not received an updated manual, please contact: 

In Canada

Tel: 866-335-8418 Email: cs.canada@pearson.com

Kits, components, and pricing

If I have a Bayley-III kit, can I upgrade to Bayley-4? If so, what are the options?

Materials are available to purchase separately; however, it is more expensive to upgrade this way than to purchase a new kit, i.e. the items required to upgrade would be:

  • Bayley-4 Administration Manual (paper or digital)
  • Bayley-4 Technical Manual (paper or digital)
  • Bayley-4 Stimulus Book (paper)
  • New Manipulatives (small set of disks (3); cat puzzle; memory cards; ducks; pennies and penny bank; large disks (6); small car)
  • For manual administration and scoring:
    • Cognitive, Language, and Motor Forms, and Motor Response Booklets (pkg of 25 of each)
    • Social-Emotional & Adaptive Behavior Record Forms (pkg 25)
    • Caregiver Report (pkg of 25)
  • For digital administration and scoring:
    • Q-global: Cognitive, Language and Motor administration, scoring & report and Motor Response Booklets
    • Q-global: Social-Emotional & Adaptive Behavior administration, scoring and report

What is the difference between Bayley-4 Q global Scoring Subscriptions and Bayley-4 Q global Reports?

The Scoring-Subscriptions provide a digital scoring option for paper-based administration. They allow manual entry of raw data to generate scores and reports.

The Cognitive, Language and Motor Administration, Scoring and Report is used for the on-screen administration of these domains, and is a digital version of the Cognitive, Language, and Motor Record Form. This is for the Examiner to use and complete.

The Social-Emotional & Adaptive Behavior Administration, Scoring and Report is a digital equivalent of the Social-Emotional & Adaptive Behavior record form. This is a caregiver questionnaire which can be emailed to the caregiver with a secure link to complete or can be completed within your office on an internet enabled device.

Content

How do the integrated caregiver questions contribute to the scoring of an item?

For certain questions a caregiver response is possible for scoring the item, see the example below:

Ask caregiver, "When you say the name of a familiar object, does [insert child's name] look at the object you named often, not often, or not at all?"

Score
2 points, Often
1 point, Not often
0 points, Not at all

For those items for which a structured/observation score and a Caregiver Question score can be obtained, is it recommended to ask the caregiver question in every instance where mastery (i.e. a score of 2) is not assigned based on the structured item administration or observation? 

The Caregiver Question should not be used in every item where it is an option or where a score of '2' is not assigned. The intent of the caregiver questions is not to optimize scores as much as possible. Rather, they are to be used when a response is ambiguous, the child is not cooperative, or if the behavior may have a greater likelihood of occurring in familiar surroundings. Frequent discrepancies between what is observed during testing and the caregiver question responses raises questions regarding the validity of Caregiver Question scores, and clinical judgement should guide interpretation.  

Is the Bayley-4 available in Spanish?
Bayley-4 is not currently available in Spanish.
At what age is prematurity considered for Bayley-4?
Prematurity is considered 36 weeks 6 days or less gestation.

Digital Administration and Scoring

Can you log in to the digital scoring and save the score report so that another discipline can enter and score their section for the same kid?

This is possible and depends on how the account is set up. Some Q-global users intentionally set up their accounts so that all their team members can view their examinees as a group (rather than just the ones they have entered). Of course, an account can also be setup so that users can only see their own examinees. This is a choice made when the account is set up.

If an account is set-up so that it is in the same hierarchy as other accounts, then the examinee record can be moved from one account to another for other disciplines to enter and score their section. Examinee records cannot be moved to an account within a separate entity / hierarchy.

Is there any data on differences between administration using paper vs. digital formats?

The digital administration of Bayley-4 is a digital record form, the child does not interact with the administration device (e.g. tablet/laptop), the administration guidelines between paper and digital are the same.

As part of the Bayley-4 validation we conducted a study comparing performance on Bayley-III (paper scoring) and Bayley-4 (digital scoring). The data indicates that the children's performance on the two tests are similar (no significant difference).

How do I administer Bayley-4 digitally?

The digital administration uses Q-global and combines the record form and administration manual for more streamlined administration. It is optimized for the screen-size of a tablet (e.g. iPad) or larger. Although it will work on a smart phone it will not be a good user experience. Q-global can be used on any device that has internet. You cannot use Q-global without internet access.

The Social-Emotional & Adaptive Behavior questionnaires can be administered remotely via a secure email link.

Will the program be able to let the examiner know when you should stop correcting age for premature babies?

It is recommended to adjust for prematurity up to 24 chronological months, however, the platform will allow you to adjust beyond this age. There is on-screen text advising the recommended ages for adjusting.

Can you pull up the original eval and add to it for re-evals?

Growth Scale Values are included in Bayley-4. These are useful for re-evaluation purposes and are available for both paper and digital administration.

For paper administration statistical significance is also available to evaluate change in Growth Score Values between two administrations.

What happens if your internet connection drops during administration?
Information is continually backed up in Q-global, if a connection drops during administration then any data entered will have been saved. Once you're able to reconnect, the session will continue from where you left off.
Is offline administration available?
Offline administration is not available currently. The back-up option is to use paper administration, and enter the scores manually, a subscription version of Bayley-4 on Q-global to facilitate this.
Can Bayley-4 be administered remotely via telepractice?
The Social-Emotional & Adaptive Behavior Questionnaire can be administered remotely. Guidance to support telepractice administration of Bayley-4, including the Cognitive, Language and Motor scales is available here

Psychometrics 

How are growth scale values reported?

Growth scale values (GSVs) provide a score metric that does not involve age-based comparisons. Their purpose is for tracking performance across repeated test administrations. If a raw score increases upon a repeat administration, the GSV also increases.

The GSVs have a mean of 500 and a SD of 100. Because of their construction, GSVs cannot be meaningfully compared between subtests or subdomains. GSVs enable the measurement of an individual child's progress or improvement in an absolute sense. Although the normative scaled scores provide information about a child relative to his or her peers at a given time and may show little change over time, the GSV can provide an ability to estimate independent of one's peers and can track growth over time.

Do the Bayley-4 norms account for children from culturally and linguistically diverse backgrounds?

The normative sample was aligned with the latest US census data and included children from culturally and linguistically diverse backgrounds including bilingual children.

What scores are available?

View the Bayley-4 score types

A Social-Emotional Age Equivalent table is also available in the Q-global Resource Library. For those without access to Q-global, please contact customer support to request a cop

Training 

How do you access complimentary training with new kit purchases?

Please see the welcome letter provided with your kit. Alternately, for digital users, details are available in the Q-global resource library for Bayley-4. You can also view training options under the training tab on the Bayley-4 webpage.

 

Webinaires

The following training events are available for Bayley-4 

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