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

Table 2

Change in third and fourth grader substance experience over a five-month interval.

	January	May	Change	𝑡
Have tried cigarettes	11.2%	13.6%	+2.4%	1.61
Intend to try cigarettes	6.5	9.2	+2.7	2.07*
Have tried smokeless tobacco	8.8	11.4	+2.6	2.04*
Intend to try smokeless tobacco	4.3	6.5	+2.2	1.86
Have tried inhalants	2.8	3.3	+.5	.60
Intend to try inhalants	1.4	3.1	+ 1.7	2.07*
Have tried alcohol	35.4	39.3	+ 3.9	1.72
Intend to try alcohol	22.6	32.4	+ 9.8	4.66*
Have tried marijuana	.5	2.0	+ 1.5	2.12*
Intend to try marijuana	.6	1.6	+ 1.0	1.67
Have tried cocaine	.2	1.4	+ 1.2	2.13*
Intend to try cocaine	1.0	2.0	+ 1.0	1.29

*Indicates statistical significance (𝑃<.05).