Research Article

Psychosocial Development and First Substance Use in Third and Fourth Grade Students: A Short-Term Longitudinal Study

Table 3

Means and standard deviations depicting the relationship between psychosocial development and initial substance use/intentions over five-months.

JanuaryMay
M M% Change

Increased substance use and/or intentions ( 𝑛 = 1 3 1 )
Trust8.218.30+1.1%
Autonomy9.529.89+3.9%
Initiative8.738.83+1.2%
Industry8.177.99−2.2%
Identity9.139.12 . 1 %

No substance use and/or intentions ( 𝑛 = 3 7 8 )
Trust8.068.70+7.9%*
Autonomy9.4410.04+6.4%*
Initiative8.629.05+5.0%*
Industry8.168.63+5.8%*
Identity9.069.50+4.9%*