Factors Influencing Knowledge and Skill Decay after Training: A Meta-Analysis
2013
Training is an essential endeavor in many organizations. Based on a 2009 report
by the American Society for Training and Development, an estimated $134.1
billion was spent on formal training among U.S. organizations (Paradise and
Patel, 2009). However, it is commonly thought that only 10 percent of these
dollars invested in training results in “enduring behavioral change” (Wexley
and Latham, 2002, p. 261). These low returns on investment are costly to
organizations. From an organization’s perspective, maximizing the amount of
posttraining knowledge and skills retained is directly linked to achieving a high
return on investment. Consequently, the present chapter presents a metaanalysis of existing organizationally relevant training research on knowledge
and skill decay. Results based on 111 independent effects retrieved from 35
reports suggested an overall moderate decay effect (d = –0.38). The amount
of decay was minimal for periods of nonuse less than 1 day (d = –0.08). For
longer periods of nonuse, decay was moderate to large (ds ranged from = –0.24
to –0.84), but there was no straightforward monotonic relationship between
the amount of decay and length of nonuse. That is, beyond 1 day, a greater
length of nonuse did not always translate into greater decay. Decay was related
to several methodological factors. Specifically, decay was greater when the
operationalization of acquisition was criterion-versus duration-based, forcognitive versus skill-based criteria, and when the instructional environment
was less structured. Furthermore, posttraining decay-prevention interventions
showed strong decay-mitigating effects with large gains in performance after
formal training. Decay was also related to the combination of cognitive and
physical (i.e., psychomotor) task demands as well as task complexity. Tasks
with moderate cognitive demands and minimal physical demands were
associated with the greatest decay, whereas tasks with minimal cognitive
demands but strong physical demands were associated with the least decay.
Complex tasks were associated with modest levels of decay that were unlikely
to be moderated by additional factors, but for simpler tasks decay effects were
less robust and dependent upon other factors. Regression analysis indicated
that decay was primarily related to the length of nonuse, amount of cognitive
task demands, and the closed-/open-looped distinction such that longer periods
of nonuse, greater cognitive demands, and closed-looped tasks were associated
with greater decay. These results are discussed with respect to Arthur, Bennett,
Stanush, and McNelly’s (1998) previous meta-analysis of decay effects. Practical
and theoretical implications are also discussed.
- Correction
- Source
- Cite
- Save
- Machine Reading By IdeaReader
0
References
1
Citations
NaN
KQI