View definitions of terms used throughout the Pathways Clearinghouse.


No evidence to assess support

We did not find any studies that rated moderate or high that studied the intervention’s effect on outcomes in a given outcome domain. These interventions need further study to support conclusions about their effectiveness.

Not supported

We have the strongest evidence that the intervention is unlikely to produce substantial favorable results in a given outcome domain. Studies of these interventions have found only a pattern of null and/or unfavorable findings. We only consider impact studies of at least moderate quality in determining this rating.