Bla ordlisten:

• 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 (compliance, concordance)
  — The degree to which participants in a study follow treatment instructions; … (read more)
• adverse effect (harm)
  — Unwanted symptom or other experience in participants which happen as a result of a treatment or test; … (read more)
• adverse event (adverse effects, undesirable treatment effects)
  — Unwanted symptoms or other experiences in participants in a study, which may or may not be caused by treatments.; … (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)