Reading the research

Every paper summary on this site carries labels — a certainty rating, a study design, a handful of numbers. This section explains what each one means, and what it should change about how you read the result.

If you read five, read these.

Every guide, by topic.

CER
Certainty & GRADE

Why a summary is rated moderate, low or very low — and why nothing is ever rated high.

Moderate certainty · Low certainty · Very low certainty

1 GUIDE5 TERMSAll →
CHG
Meaningful change

Whether a score moved further than the measurement error, and further than the patient would notice.

MCID · MDC · Minimal detectable change

1 GUIDE5 TERMSAll →
DSN
Study designs

What a pilot, a feasibility study, a case report and a protocol are each for.

Pilot study · Feasibility study · Case report

1 GUIDE5 TERMSAll →
SYN
Reviews & synthesis

Which kind of review can answer a clinical question, and how much weight it carries.

Scoping review · Systematic review · Meta-analysis

1 GUIDE6 TERMSAll →
QUA
Qualitative research

What a study of experience is designed to find, and why it never rates above very low.

Qualitative study · Grounded theory · Thematic analysis

1 GUIDE3 TERMSAll →
MSR
Measurement & validation

Whether an assessment measures what it claims, in the people you are using it on.

Reliability · Validity · ICC

1 GUIDE5 TERMSAll →
STA
Statistics & significance

What a null result, a confidence interval and an underpowered trial actually tell you.

No significant difference · Statistical power · Confidence interval

1 GUIDE4 TERMSAll →