Reliability and Validity in Psychological Assessment

At what age did Jose start speaking his first words?

What type of family history is evident in Jose's case?

Which fine motor ability is currently limited for Jose?

What was one of the observed behaviors that Jose displayed?

How long did Jose stay in the hospital neonatal care after birth?

Which of the following is NOT one of the five key areas evaluated by the DP3?

Which domain of the DP3 assesses a child's ability to dress, use technology, and take care of themselves and others?

What is the main purpose of the DP3?

Which domain of the DP3 assesses a child's interpersonal functioning and ability to relate to friends and adults?

What type of skills does the Communication domain of the DP3 assess?

What is the approximate time required to administer the DP3?

What is the typical test-retest reliability range for the DP-3 assessment?

Which assessment is mentioned as correlating with the DP-3 at expected levels?

What is the purpose of the DP-3 assessment mentioned in the text?

What is the recommended strategy for encouraging a child to stack more objects?

What is the typical internal consistency range for the DP-3 assessment?

What is the primary focus of the DP-3 assessment in relation to intervention?

Jose was observed to be overly active, unable to sit still, and had poor eye contact.
He was capable of two-word phrases, but also made unintelligible words and sounds.
He displayed repetitive mannerisms, such as hand flicking and shouting when excited.
Jose was unresponsive when his name was called, but could sustain attention in tasks that interested him.

Jose's mother gave birth at 38 years old.
During pregnancy, she underwent a minor surgery and took antibiotics post-operation.
Jose was born 4 weeks early and stayed in the hospital neonatal care for 2 weeks.
There is a family history of ADHD (paternal cousin).

Jose started speaking his first words at 3 years old.
He has limited fine motor abilities (e.g., cannot tie his shoe laces, awkward pencil grip).
Gross motor skills are average.

Evaluates a child's development in five key areas: Physical, Adaptive Behavior, Social-Emotional, Cognitive, and Communication.
Purposes of the DP-3 include evaluating development, gaining parent input, and providing intervention recommendations.
A multidimensional screening tool useful for various purposes, including screening for developmental problems and determining areas of strength and weakness.

Administration takes 20-40 minutes.
Respondents indicate whether the child has mastered each skill by answering "yes" or "no".
Reliability: Median internal consistency is .89 to .97, and test-retest reliability is .81 to .92.
Validity: DP-3 scores correlated with other established assessment tools, such as Vineland Adaptive Behavior Scales, Second Edition, and Peabody Developmental Motor Scales, Second Edition.