Evaluating
assessment validity
O2144
,Content
• Quick recap
• Measurement in assessment
• Error, reliability and validity
• Validity in more detail
• Methods for establishing validity
• What to look for when considering the validity of an
assessment
,Recap -
assessment
The process of
collecting information
about a person to help
create and occupational
profile, understand
their strengths, identify
causes of issues
, Recap - measurement
Measuring is undertaken by therapists to ascertain the
dimensions (size), quantity (amount) or capacity of a
trait, attribute or characteristic of a person that is
required by the therapist to develop an accurate picture
of the person’s needs and problems to form a baseline
for therapeutic intervention and/or to provide a measure
of outcome. A measurement is obtained by applying a
standard scale to variables, this translating direct
observations or patient/proxy reports to a numerical
scoring system.
Laver-Fawcett (2007) Principles of assessment and
outcome measurement Occupational Therapists and
Physiotherapists. p.132.
This Photo by Unkn
assessment validity
O2144
,Content
• Quick recap
• Measurement in assessment
• Error, reliability and validity
• Validity in more detail
• Methods for establishing validity
• What to look for when considering the validity of an
assessment
,Recap -
assessment
The process of
collecting information
about a person to help
create and occupational
profile, understand
their strengths, identify
causes of issues
, Recap - measurement
Measuring is undertaken by therapists to ascertain the
dimensions (size), quantity (amount) or capacity of a
trait, attribute or characteristic of a person that is
required by the therapist to develop an accurate picture
of the person’s needs and problems to form a baseline
for therapeutic intervention and/or to provide a measure
of outcome. A measurement is obtained by applying a
standard scale to variables, this translating direct
observations or patient/proxy reports to a numerical
scoring system.
Laver-Fawcett (2007) Principles of assessment and
outcome measurement Occupational Therapists and
Physiotherapists. p.132.
This Photo by Unkn
