Sleepdisorders

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PERSEVERATIVE ERROR

the ongoing repetition of an error.

DIAGNOSTIC OVERSHADOWING

The failure to see a problem because the symptoms are attrinuted to another disability. See dual dignosis.

DISTRESS

A negative emotional state with no identifiable quality.

ECONOMY OF EFFORT

The tendency to act efficiently and to m inimise energy expenditure. See elegant solution- Occam's razor.

ERROR OF EXPECTATION

The error that arises from a preconceived idea.

EXPERIMENTAL HYPOTHESIS

The premise describing what the experimenter hopes to achieve.

LIFE SPACE

a representation of the factors affecting an individuals life. These factors include environmental, biological, social and psychological factors which can

MATCHED-GROUP DESIGN

is an experimental design for research studies which requires both the experimental and control groups are similar or matched on

MENTAL HEALTH COUNSELOR

a qualified professional who is licensed to provide counselling either independently or as part of a treatment team.

MULTIPLE CAUSATION

is the philosophical position which explains that a single cause is unlikely to be the result of a single cause,

NORMAL DISTRIBUTION

an abstract continuous probability distribution which is na act of two parameters: the expected value, p, and the variance, o.

OPPORTUNISTIC SAMPLING

the choosing of participants or other sampling factors for an experiment or questionnaire essentially because they're readily available.

PARTICIPANT OBSERVATION

a kind of observational technique wherein a trained viewer enters the group under analysis as a member, while avoiding a

PERSONAL DATA SHEET

a survey modeled to attain biographical information about an individual, consisting of age, gender, education, profession, interests, and health history.

DIAGNOSTICITY

The value of information gained from an interaction, feedback or event by a person seeking self-knowledge.

DIVERGENT THINKING

Thinking that formulates new solutions to problems. Compare convergent thinking.

EFFECT SIZE

The size of an effect in a study. See combing effect sizes- statistical significance.

ERROR OF OMISSION

A type of humanerror where a person leaves out an important action resulting in a function failing. Compare error of

EXPERIMENTAL RESEARCH

Any research based on random experiments to draw a causal inference.

LIFESTYLE

the way in which a group or individual prefers to live which then becomes characteristic of that group or person.