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  2. Theoretical sampling - Wikipedia

    en.wikipedia.org/wiki/Theoretical_sampling

    Theoretical sampling is a process of data collection for generating theory whereby the analyst jointly collects codes and analyses data and decides what data to collect next and where to find them, in order to develop a theory as it emerges. [1]

  3. Observational methods in psychology - Wikipedia

    en.wikipedia.org/wiki/Observational_Methods_in...

    However, time sampling is not useful if the event pertaining to the research question occurs infrequently or unpredictably, because one will often miss the event in the short time period of observation. In this scenario, event sampling is more useful. In this style of sampling, the researcher lets the event determine when the observations will ...

  4. Sampling (statistics) - Wikipedia

    en.wikipedia.org/wiki/Sampling_(statistics)

    A visual representation of the sampling process. In statistics, quality assurance, and survey methodology, sampling is the selection of a subset or a statistical sample (termed sample for short) of individuals from within a statistical population to estimate characteristics of the whole population.

  5. Selection bias - Wikipedia

    en.wikipedia.org/wiki/Selection_bias

    Sampling bias – Bias in the sampling of a population; Sampling probability – Theory relating to sampling from finite populations; Selective exposure theoryTheory within the practice of psychology; Self-fulfilling prophecy – Prediction that causes itself to become true; Survivorship bias – Logical error, form of selection bias

  6. Psychological statistics - Wikipedia

    en.wikipedia.org/wiki/Psychological_statistics

    Psychological statistics is application of formulas, theorems, numbers and laws to psychology. Statistical methods for psychology include development and application statistical theory and methods for modeling psychological data. These methods include psychometrics, factor analysis, experimental designs, and Bayesian statistics. The article ...

  7. Sample size determination - Wikipedia

    en.wikipedia.org/wiki/Sample_size_determination

    Sample size determination or estimation is the act of choosing the number of observations or replicates to include in a statistical sample.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.

  8. Survey sampling - Wikipedia

    en.wikipedia.org/wiki/Survey_sampling

    Bias in surveys is undesirable, but often unavoidable. The major types of bias that may occur in the sampling process are: Non-response bias: When individuals or households selected in the survey sample cannot or will not complete the survey there is the potential for bias to result from this non-response.

  9. Sampling theory - Wikipedia

    en.wikipedia.org/wiki/Sampling_theory

    sampling theory may mean: Nyquist–Shannon sampling theorem, digital signal processing (DSP) Statistical sampling; Fourier sampling This page was last edited on ...