acceptability
— How much a treatment or recommendation is accepted by the people who are affected by it, or who are implementing it, in a study or in practice; … (read more)
accuracy, diagnostic see diagnostic test accuracy
(test accuracy)
— The ability of a diagnostic test to distinguish between people with a health condition and people without it; … (read more)
accuracy, diagnostic see diagnostic test accuracy
(test accuracy)
— The ability of a diagnostic test to distinguish between people with a health condition and people without it; … (read more)
adherence to medications
(compliance, concordance)
— The process by which patients take their medications as prescribed; it has three components: initiation, implementation, and persistence, followed by discontinuation.; … (read more)
adverse (drug) effect
(harm)
— A potentially harmful effect resulting from an intervention related to the use of a medicinal product, which constitutes a hazard for an adverse drug reaction and is usually associated with an abnormal laboratory test or clinical investigation.; … (read more)
adverse (drug) reaction
— An appreciably harmful or unpleasant reaction, resulting from an intervention related to the use of a medicinal product, which predicts hazard from future administration and warrants prevention or specific treatment, or alteration of the dosage regimen, or withdrawal of the product.; … (read more)
adverse event (or adverse experience)
(adverse effects, undesirable treatment effects)
— Any untoward medical occurrence associated with the use of a drug in humans, whether or not considered drug related.; … (read more)
adverse outcome
— An adverese effect of an intervention or an adverse reaction to it; … (read more)
allocation
(assignment)
— The process of assigning participants in a study to treatment comparison groups.; … (read more)
allocation bias
(assignment bias, selection bias)
— Bias resulting from the way participants in a study have been allocated to treatment comparison groups.; … (read more)
allocation schedule
(allocation sequence)
— The assignment of participants in a study to receive one of two or more treatments (including placebo, or no treatment) in a treatment comparison.; … (read more)
allocation schedule concealment
(allocation sequence concealment, concealment of allocation)
— Methods used to prevent knowledge beforehand of which participants will be allocated to which treatments in a study.; … (read more)
allocation, quasi-random see non-random allocation
(quasi-random allocation)
— Methods of allocating study participants to treatment comparison groups that are not random, but are intended to produce similar groups.; … (read more)
allocation, random see random allocation
(randomization, random selection*)
— The process of assigning participants in a study to treatment comparison groups using a chance process, like drawing lots, to protect against bias.; … (read more)
analysis, exploratory see exploratory analysis
— Analyses not intended to provide definitive evidence, but rather to suggest directions for future research.; … (read more)
analysis, intention-to-treat see intention-to-treat analysis
— Analyses based on the outcomes in all the study participants allocated to each of the treatment comparison groups.; … (read more)
analysis, interim see interim analysis
— Analyses done to check that it is reasonable for an ongoing study to continue; … (read more)
analysis, subgroup see subgroup analysis
— Analyses restricted to selected groups of participants in a study to assess whether effect estimates vary across subgroups.; … (read more)
applicability
(external validity, generalizability, relevance)
— The degree to which the results of a [.study] may apply to people who did not participate in the study; … (read more)
association
(relationship, correlation)
— A relationship between two variables in a study, e.g. between having received a particular treatment and having experienced a particular outcome.; … (read more)
attrition bias
(exclusion bias)
— Systematic differences between treatment comparison groups in withdrawals or exclusions of participants from the results of a study.; … (read more)
average
(mean)
— The sum of a list of numbers, e.g. weight, divided by the size of the list, e.g. the number of people having their weight measured; … (read more)
average difference
(mean difference)
— The difference between the average value of a measure (e.g. weight) in one group and the average value of the same measure in another group; … (read more)