Relationship between objective measures of physical activity and weather: a longitudinal study

Table 3 Final hierarchical model of factors affecting physical activity.

* The Type I p-value is associated with sequential tests of hypothesis, thus order of the factor in the above table is important (see example below).
** The Type III p-value is associated with "last in" tests of hypothesis (see example below).
For example, consider the p-values for mean temperature. The Type I p-value measures the significance of the effect for mean temperature after adjusting for those effects in the table listed above mean temperature (BMI, Gender, Week, Month, Day on Study, Total Rain and the various interactions), but not those below mean temperature (Total Snow, Snow on Ground, and the various interactions). In contrast, the Type III p-value tests for the significance of the effect if it was the "last in" the model, i.e., adjusting for all factors in the table (BMI, Gender, Week, Month, Day on Study, Total Rain, Total Snow, Snow on Ground and the various interactions).

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