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Table 2 Normal distribution test table

From: Promoting exercise behavior and cardiorespiratory fitness among college students based on the motivation theory

 

Cardiorespiratory fitness

Physical exercise

Motivation

Skewness

−0.456

1.265

−1.597

Std. Error of Skewness

0.097

0.097

0.097

Z-Score

−4.725

13.102

−16.550

Kurtosis

0.006

1.735

4.473

Std. Error of Kurtosis

0.193

0.193

0.193

Z-Score

0.033

9.000

23.204

  1. Skewness and kurtosis are used for normality test, and its corresponding Z-score is calculated, namely: skewness Z-score = skewness value/standard error, kurtosis Z-score = kurtosis value/standard error. At the test level of α = 0.05, if the Z-score is between ±1.96, the data can be considered to obey a normal distribution. The SPSS25.0 software is used to test the normality of cardiorespiratory fitness, physical exercise and motivation. The results are shown in the Table 2. The data shows that the above indicators do not follow a normal distribution.