fixed parameter

a specific value assigned (as opposed to estimated) by a researcher when testing a statistical model. For example, in structural equation modeling, researchers may use a fixed parameter of 1.0 for one of the factor loadings or variances of each latent variable in a model. Compare free parameter.

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Psychology term of the day

January 15th 2025

experimental realism

the extent to which a controlled study is meaningful and engaging to participants, eliciting responses that are spontaneous and natural. See also mundane realism.