Glossary N

Nonresponse bias is the distortion of survey results due to the differential rate of responding by various subgroups. In survey research involving mailed surveys, individuals who return the survey are not usually representative of the entire group who received the survey. Nonresponse bias is a threat to external validity.

Nonsampling errors are errors that occur during the measuring or data collection process. Nonsampling errors can yield biased results when most of the errors distort the results in the same direction. Unfortunately, the full extent of Nonsampling error is unknown. Decennial censuses traditionally have experienced Nonsampling errors, most notable undercount, resulting from people being missed in the enumeration processes

Nonsense syllables refers to three-letter combinations, that is two (2) consonants separated by a vowel that has no meaning, for example, consonant-vowel-consonant trigams like JOK, SUG, YUN that do not have meaning in the English language.

Nonshared environment refer to the aspects of an individual's environment that are unique to that individual, not shared by a sibling, for instance.

Nonshared environment is also s

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- Nonshared environmental influence (NSE) : Nonshared environmental influence refers to an environmental influence that people living together do not share that should make these individuals different from one another.

Nonshared en

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Nonsocial activity onlooker behavior and solitary play. Please see also Nonsocal play

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Nonsocial group refers to a group in which two (2) or more people are in the same place at the same time but are not interacting with each other, example are fans at a baseball game and people attending a concert

Nonspecific factors refer to factors that are not specific to any particular therapy orientation yet contribute to a positive treatment outcome, example is the expectation that one will improve.