Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
The goal of this observational study is to investigate perinatal, cognitive, linguistic and social-emotional correlates of developmental delays of preschool children.
The study group consist of minimal 500 children between 3 and 6 years of age who will be examined by qualified diagnosticians. Participants will be evaluated with tasks related to the studied variables: cognitive functioning, linguistic skills and social-emotional functioning. Furthermore informations regarding social-emotional functioning of children, will be collected from parents.
The main questions it aims to answer are:
Researchers will compare the following groups of children between 3 and 6 years old:
With perinatal risks factors
With developmental delay disorder:
Control group
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Early intervention | Children between 3 to 6 years old with formal early development support. |
| |
| Delayed speech development | Children between 3 to 6 years old with formal diagnosis of delayed speech development |
| |
| Control group | Children between 3 to 6 years old without formal diagnosis of delayed speech development and without any formal early development support. |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Psychological assessment | Other | Psychological assessment of cognitive, linguistic and social-emotional functioning. |
|
| Measure | Description | Time Frame |
|---|---|---|
| Cognitive Functioning Index as measured by the Battery of Methods for the Diagnosis of Psychomotor Development in Children aged 3-6 (B3/6) | The Cognitive Functioning Index is a composite score derived from the Cognitive Area of the B3/6 battery. It evaluates visual-spatial processing (Blocks, Puzzles), working memory (Frog recall tasks, Sentence repetition), planning (Mazes), and naming speed. Data will be reported as a standardized score (mean=100, SD=15). | Baseline |
| Phonological Processing Index as measured by the Battery of Methods for the Diagnosis of Psychomotor Development in Children aged 3-6 (B3/6) | Description: This index assesses linguistic skills through the Phonological Processing scale of the B3/6 battery. It includes tasks measuring syllabic and phonemic analysis and synthesis, as well as sound abstraction. Data will be reported as a standardized score (mean=100, SD=15). | Baseline |
| Social-Emotional Development Score as measured by the Battery of Methods for the Diagnosis of Psychomotor Development in Children aged 3-6 (B3/6) | Description: This score evaluates the child's social-emotional competence through the Social-Emotional Area of the B3/6 battery. The assessment covers three key components: naming emotions, recognizing emotions, and empathy. Data will be reported as a standardized score (mean=100, SD=15). | Baseline |
| Measure | Description | Time Frame |
|---|---|---|
| General intellectual functioning measured by the Stanford-Binet 5 (SB5) | Stanford-Binet Intelligence Scales-Fifth Edition (SB5). A standardized test which assessment two main intellectual domain (Nonverbal and Verbal). Each domain consist of five scales (Fluid Reasoning, Knowledge, Quantitative Reasoning, Visual-Spatial Processing, and Working Memory). This test is based on the Cattel-Horn-Carroll Intelligence Theory (CHC). |
Not provided
Inclusion Criteria:
Exclusion Criteria:
Not provided
Not provided
Polish preschool children aged 3 to 6 years.
| Name | Role | Phone | Extension | |
|---|---|---|---|---|
| Rafał Nowicki, MA | Contact | +48509805591 | nowicki@pracowniatestow.pl |
| Name | Affiliation | Role |
|---|---|---|
| Ariadna Łada-Maśko, PhD | Laboratory of Psychological and Educational Tests | Study Director |
| Urszula Sajewicz-Radtke, PhD | Laboratory of Psychological and Educational Tests | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Laboratory of Psychological and Educational Tests | Recruiting | Gdansk | Pomeranian Voivodeship | 80-239 | Poland |
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
| ID | Term |
|---|---|
| D007859 | Learning Disabilities |
| D012917 | Social Adjustment |
| D007805 | Language Development Disorders |
| D007802 | Language |
| ID | Term |
|---|---|
| D003147 | Communication Disorders |
| D019954 | Neurobehavioral Manifestations |
| D009461 | Neurologic Manifestations |
| D009422 | Nervous System Diseases |
Not provided
Not provided
Not provided
Not provided
Not provided
| Baseline |
| Nonverbal Intelligence Quotient (NIQ) as measured by the Primary Test of Nonverbal Intelligence (PTONI) | Description: The PTONI is a standardized, norm-referenced instrument designed to assess nonverbal reasoning and problem-solving skills in young children. It measures abilities such as analogical reasoning, categorical classification, and sequential reasoning. The test requires no verbal response from the child. The results will be reported as a standardized index score (mean=100, SD=15). | Baseline |
| Early social-emotional development | The Emotional Development Scale for Children Aged 3-6. A standardized test for assessing the emotional development of preschool children, which consists of three diagnostic scales: 1) Recognizing emotions, 2) Naming emotions and 3) Emotions in social situations. | Baseline |
| Birth weight | Description: The weight of the newborn at birth, collected retrospectively from medical records or parental report. Data will be reported in grams. | Baseline (retrospective data) |
| Gestational age at birth | Description: The number of completed weeks of pregnancy at the time of delivery, collected retrospectively. Data will be reported in weeks. | Baseline (retrospective data) |
| Apgar score | Description: The Apgar score recorded 5 minutes after birth, representing the newborn's physical condition. The score ranges from 0 to 10, where higher scores indicate better health status. | Baseline (retrospective data) |
| Occurrence of perinatal complications | Description: Number of participants who experienced medical complications during the perinatal period (e.g., hypoxia, infections). Reported as a categorical frequency (Yes/No). | Baseline (retrospective data) |
| Socio-demographic data | Authors survey of socio-demographic data, including: gender, month and year of birth, size of place of residence, region of residence, age of starting preschool, diagnosis (if any), parents education level | Baseline |
| Bartosz M Radtke, PhD | Laboratory of Psychological and Educational Tests | Principal Investigator |
| D012816 | Signs and Symptoms |
| D013568 | Pathological Conditions, Signs and Symptoms |
| D065886 | Neurodevelopmental Disorders |
| D001523 | Mental Disorders |
| D012919 | Social Behavior |
| D001519 | Behavior |
| D007806 | Language Disorders |
| D003142 | Communication |