Document Characteristics | Full Sample of Documents (N= 121) | |
---|---|---|
 | n | % |
Document Type | Â | Â |
Journal article | 99 | 81.8 |
Book chapter | 5 | 4.1 |
Dissertation | 7 | 5.8 |
Report | 10 | 8.3 |
Intervention Foci | Â | Â |
Pregnancy | 21 | 17.4 |
Parenting | 53 | 43.8 |
Both | 47 | 38.8 |
Date of Publication (years) | Range 1978-2008 | Median 1999 |
Document Length (in pages) | Range 1-250 | Median 11.00 |
Study Design | Â | Â |
Randomized/experimental | 14 | 11.5 |
Quasi-experimental | 44 | 36.4 |
Pre-post | 28 | 23.1 |
Non-experimental | 35 | 29.5 |
Study Series Status | Â | Â |
Single publication | 40 | 33.1 |
In a series | 81 | 66.9 |
Study quality | Â | Â |
Jadad | Range 1-3 | Mean 1.67 |
Newcastle-Ottawa Scale | Range 0-6 | Mean 2.45 |