ISYE 6402 ACTUAL EXAM PAPER 2026
QUESTIONS WITH ANSWERS GRADED A+
◍ Expressive Language.
Answer: The use of either spoken (speaking) or written (writing)language.
Also referred to as production
◍ Use.
Answer: Pragmatics
◍ True or False: When using a random forest model, it's easy to interpret how
its results are determined..
Answer: False. Unlike a model like regression where we can show the result
as a simple linear combination of each attribute times its regression
coefficient, in a random forest model there are so many different trees used
simultaneously that it's difficult to interpret exactly how any factor or
factors affect the result.
◍ Private Sector.
Answer: ▪ Any entity that is run by individuals or a company that is "for
profit" andnot state controlled▪ Private practice▪ Children's hospital▪
Children's rehabilitation facility
◍ Diagnosis.
Answer: Typically occurs in a medical or private sector setting.
Meetsstandards of criteria set forth by the Diagnostic and Statical Manual
(DSM) or ICD-10
◍ Public Sector.
Answer: ▪ Government Controlled▪ Public schools (Preschool - 12th grade)
and State-Funded early intervention programs (birth - 3 years old)▪
Regulated by Public Law and Federal and State legislation▪ Part C: Early
Intervention services provided by federal legislation (PL99-457) for children
, with disabilities ages birth - 3 years old. Services end on the child's 3rd
birthday and "transfer" to Part B.▪ Part B: Provision of services through
federal legislation (PL94-142) for children with disabilities ages 3 years - 21
years. Services end on theperson's 22nd birthday
◍ Communication.
Answer: According to ASHA (1993), "A communication disorder is
animpairment in the ability to receive, send, process, and comprehend
concepts orverbal, nonverbal and graphic symbol systems. A
communication disorder may be evident in the processes of hearing,
language, and/or speech. A communication disorder may range in severity
from mild to profound. It may be developmental or acquired. Individuals
may demonstrate one or any combination of communication disorders. A
communication disorder may result in a primary disability or it may be
secondary to other disabilities."
◍ Metacognition.
Answer: This is the ability to be aware of and discuss one's own
thoughtprocesses.
◍ Language.
Answer: According to ASHA (1993), "Language is a rule-governed
behavior. Itis defined as the comprehension and/or use of a spoken (i.e.,
listening andspeaking), written (i.e., reading and writing), and/or other
communication symbolsystem (e.g., American Sign Language)."
◍ Speech.
Answer: According to ASHA (1993), speech is related to the articulation
ofspeech sounds, fluency, and/or voice.Speech is the coordinated motor acts
that allow one to express language orally.
◍ how do you calculate the observed trend?.
Answer: It is S_t - S_{t-1}. The difference between the two baselines
◍ Developmental Language Disorder (DLD).
Answer: According to ASHA, "a language disorder is an impairment in
, comprehensionand/or use of a spoken, written, and/or other communication
symbol system." Can involve form, content and/or use
◍ Syntax.
Answer: The language system that regulates the order andcombination of
words to form sentences as well as the elementswithin a sentence
◍ what can you detrend?.
Answer: The response and predictors in factor-based models
◍ What effects does randomness have on training /validation performance?.
Answer: sometimes the randomness will make the performance look worse
than it really is, and sometimes the randomness will make the performance
look better than it really is
◍ If you using regression to make forecasts the key answers are?.
Answer: The responses
◍ Normative Perspective.
Answer: Takes into account society'svalues and expectations concerning
individual behavior
◍ Eligibility.
Answer: Most often refers to educational eligibility with standards setforth
in IDEA in the public sector. It "can" also refer to medical settingsrelated to
"eligibility" for insurance coverage
◍ what is a test data set used for?.
Answer: to estimate performance of chosen model
◍ Phonology:.
Answer: The sound system of any given language and the rulesthat regulate
the combination of those sounds.
◍ 3 categories that children will fall into.
Answer: 1. Some children will receive a diagnosis and that in and of itself
will allow them to be eligible for services.2. Some children will be
diagnosed and not have established eligibility forservices.3. Some children
QUESTIONS WITH ANSWERS GRADED A+
◍ Expressive Language.
Answer: The use of either spoken (speaking) or written (writing)language.
Also referred to as production
◍ Use.
Answer: Pragmatics
◍ True or False: When using a random forest model, it's easy to interpret how
its results are determined..
Answer: False. Unlike a model like regression where we can show the result
as a simple linear combination of each attribute times its regression
coefficient, in a random forest model there are so many different trees used
simultaneously that it's difficult to interpret exactly how any factor or
factors affect the result.
◍ Private Sector.
Answer: ▪ Any entity that is run by individuals or a company that is "for
profit" andnot state controlled▪ Private practice▪ Children's hospital▪
Children's rehabilitation facility
◍ Diagnosis.
Answer: Typically occurs in a medical or private sector setting.
Meetsstandards of criteria set forth by the Diagnostic and Statical Manual
(DSM) or ICD-10
◍ Public Sector.
Answer: ▪ Government Controlled▪ Public schools (Preschool - 12th grade)
and State-Funded early intervention programs (birth - 3 years old)▪
Regulated by Public Law and Federal and State legislation▪ Part C: Early
Intervention services provided by federal legislation (PL99-457) for children
, with disabilities ages birth - 3 years old. Services end on the child's 3rd
birthday and "transfer" to Part B.▪ Part B: Provision of services through
federal legislation (PL94-142) for children with disabilities ages 3 years - 21
years. Services end on theperson's 22nd birthday
◍ Communication.
Answer: According to ASHA (1993), "A communication disorder is
animpairment in the ability to receive, send, process, and comprehend
concepts orverbal, nonverbal and graphic symbol systems. A
communication disorder may be evident in the processes of hearing,
language, and/or speech. A communication disorder may range in severity
from mild to profound. It may be developmental or acquired. Individuals
may demonstrate one or any combination of communication disorders. A
communication disorder may result in a primary disability or it may be
secondary to other disabilities."
◍ Metacognition.
Answer: This is the ability to be aware of and discuss one's own
thoughtprocesses.
◍ Language.
Answer: According to ASHA (1993), "Language is a rule-governed
behavior. Itis defined as the comprehension and/or use of a spoken (i.e.,
listening andspeaking), written (i.e., reading and writing), and/or other
communication symbolsystem (e.g., American Sign Language)."
◍ Speech.
Answer: According to ASHA (1993), speech is related to the articulation
ofspeech sounds, fluency, and/or voice.Speech is the coordinated motor acts
that allow one to express language orally.
◍ how do you calculate the observed trend?.
Answer: It is S_t - S_{t-1}. The difference between the two baselines
◍ Developmental Language Disorder (DLD).
Answer: According to ASHA, "a language disorder is an impairment in
, comprehensionand/or use of a spoken, written, and/or other communication
symbol system." Can involve form, content and/or use
◍ Syntax.
Answer: The language system that regulates the order andcombination of
words to form sentences as well as the elementswithin a sentence
◍ what can you detrend?.
Answer: The response and predictors in factor-based models
◍ What effects does randomness have on training /validation performance?.
Answer: sometimes the randomness will make the performance look worse
than it really is, and sometimes the randomness will make the performance
look better than it really is
◍ If you using regression to make forecasts the key answers are?.
Answer: The responses
◍ Normative Perspective.
Answer: Takes into account society'svalues and expectations concerning
individual behavior
◍ Eligibility.
Answer: Most often refers to educational eligibility with standards setforth
in IDEA in the public sector. It "can" also refer to medical settingsrelated to
"eligibility" for insurance coverage
◍ what is a test data set used for?.
Answer: to estimate performance of chosen model
◍ Phonology:.
Answer: The sound system of any given language and the rulesthat regulate
the combination of those sounds.
◍ 3 categories that children will fall into.
Answer: 1. Some children will receive a diagnosis and that in and of itself
will allow them to be eligible for services.2. Some children will be
diagnosed and not have established eligibility forservices.3. Some children
