Fill in the Blank
-Treatment (intervention) package
$\bullet$The addition or change of several ____________________ variables
$\bullet$at the same time
$\bullet$to achieve a desired result.
$\bullet$without testing the effects of each variable ______________________.

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The Answer of Fill in the Blank
-Treatment (intervention) package
$\bullet$The addition or change of several ____________________ variables
$\bullet$at the same time
$\bullet$to achieve a desired result.
$\bullet$without testing the effects of each variable ______________________.

Fill in the Blank -Treatment (Intervention) Package ∙\bullet∙ The Addition or Change of Several ____________________ Variables

Fill in the Blank
-Treatment (Intervention) Package $\bullet$ The Addition or Change of Several ____________________ Variables