Many children do develop speech sounds over time but those who do not often need the services of an SLP to learn correct speech sounds. Some speech sound errors can result from physical problems, such as: 1  developmental disorders (e.g.,autism). 2  genetic syndromes (e.g., Down syndrome).
adjective. 1  The definition of anergic is a condition in which the body fails to react to an injected antigen. 2  The definition of anergic is a condition in which the body fails to react to an injected antigen. A child whose body does not react properly to an immunization is anergic.
An operational definition is a process by which the characteristics of a concept can be defined, including identification and classification. It consists of the methods or tests that are used in analyzing a given variable or concept, which can be used to confirm the validity of the information obtained. simple example that shows the relationship between a conceptual definition and an operational definition: if the concept is weight, an operational definition could be the weight of an object as measured on a scale.