ascertainment
61Freedom of speech in the United States — is protected by the First Amendment to the United States Constitution and by many state constitutions and state and federal laws. Criticism of the government and advocation of unpopular ideas that people may find distasteful or against public… …
62Avidyā — Part of a series on Hindu philosophy …
63Observer-expectancy effect — Participant observer effect redirects here. Psychology …
64Attachment theory — …
65Experimenter's bias — In experimental science, experimenter s bias is subjective bias towards a result expected by the human experimenter. David Sackett,[1] in a useful review of biases in clinical studies, states that biases can occur in any one of seven stages of… …
66List of memory biases — In psychology and cognitive science, a memory bias is a cognitive bias that either enhances or impairs the recall of a memory (either the chances that the memory will be recalled at all, or the amount of time it takes for it to be recalled, or… …
67Bicycle helmet — A bicycle helmet is a helmet intended to be worn while riding a bicycle. They are designed to attenuate impacts to the skull of a cyclist in falls while minimizing side effects such as interference with peripheral vision.[1] There is an active… …
68Berkson's paradox — or Berkson s fallacy is a result in conditional probability and statistics which is counter intuitive for some people, and hence a veridical paradox. It is a complicating factor arising in statistical tests of proportions. Specifically, it arises …
69Mark and recapture — is a method commonly used in ecology to estimate population size. This method is most valuable when a researcher fails to detect all individuals present within a population of interest every time that researcher visits the study area. Other names …
70Omitted-variable bias — In statistics, omitted variable bias (OVB) occurs when a model is created which incorrectly leaves out one or more important causal factors. The bias is created when the model compensates for the missing factor by over or under estimating one of… …
