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Assessment Instruments in Psychology / Early Stimulation

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Assessment Instruments in Psychology / Early Stimulation

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An assessment instrument is a standardized tool, test, or technique used by professionals in psychology and education to collect valid and reliable information about an individual’s development, abilities, or difficulties.

Source: Muñoz, J. (2019). Child Psychological Assessment. Manual Moderno.

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By Developmental Area:

Cognitive

Motor

Language

Socio-emotional

By Type:

Standardized tests

Checklists

Structured observation tools

Developmental scales

Interviews

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- Key Characteristics of a Good Instrument - 

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- Key Characteristics of a Good Instrument - 

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Validity: measures what it is intended to measure.

Reliability: produces consistent and stable results over time.

Standardization: follows uniform norms and procedures.

Relevance: aligned with the purpose of the evaluation.

Objectivity: minimizes evaluator bias in results.

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Example 1:

🔹 Name: Bayley Scales of Infant and Toddler Development (Bayley-III)

🔹 Area Assessed: Cognitive, motor, and socio-emotional

🔹 Target Age: 1–42 months

🔹 Description: Evaluates early development across multiple domains, identifying delays or strengths.

🔹 Example of Use: Helps design personalized early stimulation programs for infants at risk of developmental delays.

Example 2:

🔹 Name: Peabody Picture Vocabulary Test (PPVT) / TVIP (Spanish version)

🔹 Area Assessed: Language (receptive vocabulary)

🔹 Target Age: 2.5–18 years

🔹 Description: Measures auditory comprehension of vocabulary through pictures.

🔹 Example of Use: Detects early language difficulties to support preschool children with targeted language stimulation.

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Muñoz, J. (2019). Child Psychological Assessment. Manual Moderno.

Bayley, N. (2006). Bayley Scales of Infant and Toddler Development, Third Edition (Bayley-III). Pearson.

Dunn, L. M., & Dunn, D. M. (2007). Peabody Picture Vocabulary Test. Pearson.

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What Assessment Tools Are Used? - Childhood Education Zone