Question $20$

$2\mathrm{.}5$ pts

$"$In its original form, Kirkpatrick model of training effectiveness evaluation suggests that $"$

"When possible, training should always be evaluated by training participants, trainers, managers, and independent specially$-$trained observers"

"Training should be evaluated at the levels of reactions, learning, behaviors, and results"

"Training should always be evaluated using objective tests, while subjective opinions sh$$ld be avoided as they tend to yield invalid and unreliable data"

"While pre$-$ and post$-$training assessment and use of control groups is unnecessary when measuring how much has been learned in a training$/$development session, these measurement approaches should always be utilized when measuring the impact of training on trainee behavior and performance.

All of the above