Okta Okta In meteorology, an okta is a unit of measurement used to describe the amount of cloud cover at any given location such as a weather station. Sky conditions are estimated in terms of how many eighths of the sky are covered in cloud, ranging from 0 oktas (completely clear sky) through to 8 oktas (completely overcast). In addition, in the SYNOP code there is an extra cloud cover indicator '9' indicating that the sky is totally obscured (i.e. hidden from view), usually due to dense fog or heavy snow. When used in weather charts, okta measurements are shown by
Theory of conjoint measurement All three must therefore be expressed in the same unit. In such cases, it would appear that a level of either "A" or "X" must be tentatively identified as the unit. Hence it would seem that application of conjoint measurement requires some prior descriptive theory of the relevant natural system. Empirical applications of the theory of conjoint measurement have been sparse (; ). Several empirical evaluations of the double cancellation have been conducted. Among these, evaluated the axiom to the psychophysics of binaural loudness. They found the double cancellation axiom was rejected. conducted a similar investigation and replicated Levelt, "et