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  2. Population study - Wikipedia

    en.wikipedia.org/wiki/Population_study

    Population study is an interdisciplinary field of scientific study that uses various statistical methods and models to analyse, determine, address, and predict population challenges and trends from data collected through various data collection methods such as population census, registration method, sampling, and some other systems of data sources. [1]

  3. Statistical population - Wikipedia

    en.wikipedia.org/wiki/Statistical_population

    In statistics, a population is a set of similar items or events which is of interest for some question or experiment. [1] A statistical population can be a group of existing objects (e.g. the set of all stars within the Milky Way galaxy) or a hypothetical and potentially infinite group of objects conceived as a generalization from experience (e.g. the set of all possible hands in a game of ...

  4. Sample size determination - Wikipedia

    en.wikipedia.org/wiki/Sample_size_determination

    The sample size is an important feature of any empirical study in which the goal is to make inferences about a population from a sample. In practice, the sample size used in a study is usually determined based on the cost, time, or convenience of collecting the data, and the need for it to offer sufficient statistical power. In complex studies ...

  5. PICO process - Wikipedia

    en.wikipedia.org/wiki/PICO_process

    The PICO process (or framework) is a mnemonic used in evidence-based practice (and specifically evidence-based medicine) to frame and answer a clinical or health care related question, [1] though it is also argued that PICO "can be used universally for every scientific endeavour in any discipline with all study designs". [2]

  6. Inclusion and exclusion criteria - Wikipedia

    en.wikipedia.org/wiki/Inclusion_and_exclusion...

    Exclusion criteria concern properties of the study sample, defining reasons for which patients from the target population are to be excluded from the current study sample. Typical exclusion criteria are defined for either ethical reasons (e.g., children, pregnant women, patients with psychological illnesses, patients who are not able or willing ...

  7. Research design - Wikipedia

    en.wikipedia.org/wiki/Research_design

    The design of a study defines the study type (descriptive, correlational, semi-experimental, experimental, review, meta-analytic) and sub-type (e.g., descriptive-longitudinal case study), research problem, hypotheses, independent and dependent variables, experimental design, and, if applicable, data collection methods and a statistical analysis ...

  8. Survey methodology - Wikipedia

    en.wikipedia.org/wiki/Survey_methodology

    Survey methodology is "the study of survey methods". [1] As a field of applied statistics concentrating on human-research surveys, survey methodology studies the sampling of individual units from a population and associated techniques of survey data collection, such as questionnaire construction and methods for improving the number and accuracy of responses to surveys.

  9. Template:Research paper - Wikipedia

    en.wikipedia.org/wiki/Template:Research_paper

    No description. Template parameters [Edit template data] Parameter Description Type Status Month and year date The month and year that the template was placed (in full). "{{subst:CURRENTMONTHNAME}} {{subst:CURRENTYEAR}}" inserts the current month and year automatically. Example January 2013 Auto value {{subst:CURRENTMONTHNAME}} {{subst:CURRENTYEAR}} Line suggested Affected area 1 Text to ...