Ladders to Literacy is a supplemental early literacy curriculum published in Ladders to Literacy: A Kindergarten Activity Book. The program targets children at different levels and from diverse cultural backgrounds. The activities are organized into three sections with about 20 activities each: print awareness, phonological awareness skills, and oral language skills.
As of August 2007, no studies of Ladders to Literacy were found that fell within the scope of the Beginning Reading review protocol and met WWC evidence standards. Therefore, the WWC is unable to draw any research based conclusions about the effectiveness or ineffectiveness of Ladders to Literacy to improve outcomes in this area.
|
Outcome domain |
Effectiveness rating |
Studies meeting standards |
Grades examined |
Students |
Improvement index |
|---|---|---|---|---|---|
| General Mathematics Achievement |
|
1 study meets standards | PK | 105 | -- |
| . (2008) | PK | 105 |
|
||
| Oral language |
|
2 studies meet standards | PK | 139 |
|
| . (2008) | PK | 105 |
|
||
| Russell, J. (2005) | PK | 34 |
|
||
| Phonological processing |
|
1 study meets standards | PK | 105 | -- |
| . (2008) | PK | 105 |
|
||
| Print knowledge |
|
1 study meets standards | PK | 105 | -- |
| . (2008) | PK | 105 |
|
A group of closely related outcomes.
A summary of the effectiveness of an intervention in an outcome domain, based on the quality of research, the statistical significance of findings, the magnitude of findings, and the consistency of findings across studies.
 Positive: strong evidence that intervention had a positive effect on outcomes. |
 Potentially Positive: evidence that intervention had a positive effect on outcomes with no overriding contrary evidence. |
 Mixed: evidence that intervention’s effect on outcomes is inconsistent. |
 No Discernible: no evidence that intervention had an effect on outcomes. |
 Potentially Negative: evidence that intervention had a negative effect on outcomes with no overriding contrary evidence. |
 Negative: strong evidence that intervention had a negative effect on outcomes. |
For more, please see the WWC Glossary entry for rating of effectiveness.
The number of studies that met WWC design standards and provide evidence of effectiveness. Selecting an item below will display all studies that met WWC design studies in the domain. Selecting a study citation will take you to more information on that study and its findings.
For more, please see the WWC Glossary entry for study rating.
Grades of the students examined in the studies that met WWC design standards, which may not reflect the full range of grades for which the intervention may be used.
The number of students included in the studies that met WWC design standards.
The sample size for the studies that met WWC design standards.
An indicator of the effect of the intervention, the improvement index can be interpreted as the expected change in percentile rank for an average comparison group student if that student had received the intervention.
For more, please see the WWC Glossary entry for improvement index.
The indicator represents the highest level of similarity found between your students and each of the high-quality studies of the intervention. Three filled in ovals indicates that at least one study that met standards was conducted on students very similar to yours. Clicking on the indicator for a study will provide information on the similarity for each of the characteristics you selected.
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