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What do SF-36 scores mean?

What do SF-36 scores mean?

To score the SF-36, scales are standardized with a scoring algorithm or by the SF-36v2 scoring software to obtain a score ranging from 0 to 100. Higher scores indicate better health status, and a mean score of 50 has been articulated as a normative value for all scales.

WHAT IS A norms based scale?

Profile measures often use a norm-based scoring algorithm where each scale is scored to have a standardized mean and standard deviation, relative to the general population scores/norms (i.e., norm-based).

Is SF-36 validated?

Considerable evidence was found for the reliability of the SF-36 (Cronbach’s alpha greater than 0.85, reliability coefficient greater than 0.75 for all dimensions except social functioning) and for construct validity in terms of distinguishing between groups with expected health differences.

How long does it take to complete SF-36?

The SF-36 was quick to complete, with 84% completed in 10 minutes or less (median time 8 minutes), while the distribution of scores provided further evidence of its sensitivity and validity.

What domains are included in SF-36?

The SF-36 measures eight scales: physical functioning (PF), role physical (RP), bodily pain (BP), general health (GH), vitality (VT), social functioning (SF), role emotional (RE), and mental health (MH).

What are the norms for standardized tests?

Test “norms” — short for normative scores — are scores from standardized tests given to representative samples of students who will later take the same test. Norms provide a way for teachers to know what scores are typical (or average) for students in a given grade.

What are types of norms?

There are four key types of norms, with differing levels of scope and reach, significance and importance, and methods of enforcement and sanctioning of violations. These are, in order of significance, folkways, mores, taboos, and laws.

Is SF-36 Reliability and validity?

The study findings indicate that the SF-36 is a reliable and valid instrument for assessment of HRQoL in patients with brain tumors. The proportion of missing data was low (≤4%) for all SF-36 subscales corresponding to previous studies in healthy participants and in patients with somatic disorders.

What are the SF-36 domains?

The SF-36 is a 36 item scale, which measures eight domains of health status: physical functioning (10 items); physical role limitations (four items); bodily pain (two items); general health perceptions (five items); energy/vitality (four items); social functioning (two items); emotional role limitations (three items) …

How many questions are in SF-36?

36
The 36-Item Short Form Health Survey questionnaire (SF-36)3 is a very popular instrument for evaluating Health-Related Quality of Life. A PubMed search using the term “SF-36 health survey” found 9722 items.

How is SF-36 calculated?

Scoring. The SF-36 consists of eight scaled scores, which are the weighted sums of the questions in their section. Each scale is directly transformed into a 0-100 scale on the assumption that each question carries equal weight. The lower the score the more disability.