The name is absent

Studies
Method

Validity of data
collection tools/
methods

Reliability of data
collection tools/
methods

Study
timing

Maryland
scale
score

WoEA

WoE B

WoE C

WoE D

De Paul & Arrubuena.
(2003)

One group pre-post test

Clinical Judgment of Case
Co-ordinator scale

Beck Depression Inventory
not mention about validity
of Spanish translation of
BDI version CAP yes TRF
Yes. However, the authors
did not state about validity
of a Spanish translation of
TRF version CWB

Clinical Judgment of
Case Co-ordinator scale
Yes Beck depression
inventory- Yes

CAP yes

TRF yes

CWBS Not stated

Prospective

Level 2

Medium

Low

Medium

Low

Dillane et al. (2001)
One group pre-post test

Views studies

Small number of
interviews - high interview
failure rate - part of
evidence from project
records which were not
externally verified

Yes. Both staff and client
families interviewed twice
where possible. Some
mention of consistency of
staff answers in interviews
(e.g. p 28). Interviews
tape-recorded (p 7)

Prospective

Level 2

Medium

Low

High

Low

Harrell et al. (1999)

Randomised controlled
trial

Non-randomised
controlled trial

Supplemented self-
reported data with official
criminal records∕data on
school performance.

Not reported

Prospective

Level 5

High

High

High

High

Hunter et al (2004)

One group post-test only

No

No

Not stated

Level 1

Low

Low

Low

Low

Jones et al. (2006)

Surveys

Referral

Views studies

Document study

Not stated

Limited, the author stated
about information from
the Legal and Enforcement
Team was much more
reliable, so it was decided
to concentrate on the Legal
and Enforcement records (p 54)

Cross-
sectional

Prospective

Level 1

Medium

Low

High

Low