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Table 7 Statistically significant variables with FS and selected < 75 with LASSO

From: Machine learning procedures for predictor variable selection for schoolwork-related anxiety: evidence from PISA 2015 mathematics, reading, and science assessments

Variable

Counts

LASSO mean

LASSO SD

FS coefficient

FS p-value

Moderate physical activities at least 60 min per day (ST032Q01NA)

60

0.0025

0.00

0.0118

0.0459

Explain phenomena scientifically science subscale (PV1SCEP)

25

− 0.0001

0.00

 − 0.0013

0.0010

Living system subscale (PV1SSLI)

22

0

0.00

 − 0.0011

0.0029

Science (PV1SCIE)

14

0

0.00

0.0012

0.0107

Physical science subscale (PV1SSPH)

9

0

0.00

0.0010

0.0078

  1. SDs less than 0.00. PV = Plausible value. Statistical significance testing should not be conducted with the means and SDs of LASSO
  2. p < 0.05