This study replicates the pilot study of De Bruin et al. (2015) in a larger participant group with a broader age range, including
additional outcome variables and a 1 - year follow - up.
Not exact matches
Any individual
outcome depends on so many
additional uncontrollable
variables, but a program's structural integrity tells us whether it can work at all.
Once this control is in place, the family income
variable (not shown) has no
additional explanatory power over either
outcome.
At the secondary level, an
additional outcome, or dependent
variable predicted is the number of Regents Exams a student passed for the first time in the current year.
Future research should seek
additional control
variables as well as use experimental and quasi-experimental designs to establish a causal relationship between dual enrollment participation and educational
outcomes.
In an
additional test of attrition effects, the interaction of intervention condition with attrition was assessed with respect to each
outcome variable reported inTable 3 by examining attrition - by - condition interaction effects on corresponding measures at fifth - grade entry.
Missing values were predicted using an iterative series of appropriate regression models (logistic or multinomial) conditional on the observed values of the
outcome variable, independent
variables used in regression modelling and
additional measured
variables.
Garrard and Lipsey (2007) included
additional tests — called moderator analyses — to see whether any factors, such as student
variables, strengthened the likelihood that conflict resolution education (CRE) programs improved
outcomes.
Without detailed longitudinal studies and the measurement of many
additional variables, it may be very difficult to tease out whether, for example, it is household substance abuse that affects later
outcomes or some unmeasured underlying parental emotional problem or lack of self - control.