B. Statistical Methods (used for collection of information employing statistical methods)
Respondent Universe and Sampling Methods
Full-scale Study
Programs will be selected using stratified random sampling procedures. The only stratification variable will be four geographic region designated by the U.S. Census: Northeast, Midwest, South, and West. Three territories will be included – District of Columbia, Puerto Rico, and Guam – because they each have all three DD Network programs. District of Columbia and Puerto Rico will be included in Region 3 (South). Guam is included in Region 4 (West) for sampling
Table B-1 below shows the individuals that will be interviewed within each selected program.
Table B-1. Number sampled in each respondent category and potential respondent universe
Respondent Category |
Potential Respondent Universe |
Sample Number |
DD Council: Executive Director Interview |
55 |
20 |
DD Council: Interview with Council Chair/Council Members |
440 |
60 |
DD Council: Group Interview with Policymakers, Collaborators, and Grantees |
5,500 |
160 |
DD Council: Group Interview with Recipients of Self-Advocacy and Leadership Education and Training |
2,750 |
100 |
DD Council: Group Interview with Recipients of Education and Training to Improve Community Capacity |
2,750 |
100 |
DD Council: Self-administered Form |
55 |
20 |
P&A: Executive Director Interview |
57 |
20 |
P&A: Staff Interview |
855 |
60 |
P&A: Board of Directors (Commissioners)-Chair and Members |
1,140 |
60 |
P&A: Group Interview with Policymakers and Collaborators |
5,700 |
160 |
P&A: Interview with Recipient of Community Education |
5,700 |
100 |
P&A: Interview with Clients |
5,700 |
100 |
P&A: Self-administered Form |
57 |
20 |
UCEDD: Interview with Director |
68 |
20 |
UCEDD: Telephone Interview with Current and Graduated Students |
3,400 |
100 |
UCEDD: Interview with the Consumer Advisory Committee |
1,360 |
60 |
UCEDD: Interview with Peer Researchers and Colleagues |
3,400 |
100 |
UCEDD: Interview with Recipients of Community Services or Members of Organizations/Agencies that are Trained to Provide Community Services |
500,000 |
100 |
UCEDD: Self-administered Form |
68 |
20 |
ADD Assessment
The ADD assessment consists of interviews with ADD staff and stakeholders. Representatives from the following groups will be interviewed:
ADD staff
Federal disability partners
National disability organizations
Projects of National Significance
Executive Directors from all DD Network programs in each state and territory
The ADD Commissioner and all ADD program staff and management were interviewed. The contractor worked with the ADD Commissioner, Deputy Commissioner, and Project Officer of the contract to identify appropriate individuals in Federal disability-related agencies and National disability organizations (thus, no sampling). Up to 9 individuals will be interviewed in each group. Projects of National Significance were grouped into categories (Emergency Preparedness; Family Support and Community Access Demonstrations; National Autism Resource and Information Center; Voting Project; Family Support 360; Youth Information, Training, and Resource Center; Ongoing Data Collection). Two projects were sampled from Family Support 360 and one project was sampled from each of the remaining categories. The project director of each selected project will be contacted for an interview.
All Executive Directors (180) will be requested to complete a web-based survey, so there will be no sampling for this group.
Procedures for the Collection of Information
Full-scale study
Data was collected using semi-structured interview guides to interview key informants identified with the help of Executive Directors of each program. Interviews were transcribed and summarized.
Analysis will consist of examining both quantitative and qualitative data collected on the 60 programs in 20 states and summarizing findings regarding structural, process, output and outcome indicators for each program and collaboration among the three programs. The focus of data analysis and synthesis will be on the extent to which DD Network programs are achieving outcomes. However, the contractor will also examine inputs, processes, and outputs to determine some of the factors that may contribute to falling short of achieving these outcomes and the factors that may be facilitating their achievement.
Analysis of in-person interview data, telephone interviews, materials obtained from programs will be qualitative. Data from the self-administered questionnaires are both quantitative and qualitative. In either case, a descriptive analysis, focusing on the research questions (Exhibit B-1) will take place.
Exhibit B-1. Research questions for the full-scale study
Structural Indicator questions:
Process Indicator questions:
Output Indicator questions:
Outcome Indicator questions:
Effectiveness questions:
|
ADD Assessment
The design of the ADD assessment is essentially a collection of retrospective and current data that relate to ADD’s structures, processes, outputs, and outcomes to draw conclusions about influences on the efficiency and effectiveness of DD Network programs. We define “effectiveness” as the ability to meet objectives. Thus, the ADD assessment will examine ADD’s ability to meet its objectives, from the perspective of a variety of stakeholders (including Executive Directors of DD Network programs), the DD Network programs’ ability to meet their objectives, and the relationship between the two.
Westat will use a semi-structured interview guide to obtain information from ADD staff, Federal agency partners, national disability organization staff, and staff from Projects of National Significance (discretionary grants funded by ADD. Up to nine individuals per category will be identified with assistance from ADD. Interviews will be conducted by telephone.
The contractor, Westat, will obtain budget and cost allocation data from ADD at three points in time (e.g., 2005, 2007, and 2009) to assess changes in some of the key structures (inputs) for ADD. Data collected through interview and by web-based questionnaire will relate to a recent period (e.g., 2009 and 2010).
Program materials will be obtained from ADD or the ADD website and reviewed by Westat staff.
To administer the web-based questionnaire, the Commissioner of ADD will send a letter to Executive Directors informing them that they will be contacted by Westat to participate in a web-based survey. Westat will then send an initial email to all Executive Directors to explain the purpose of the ADD assessment and provide a username and password to gain access to the questionnaire (Appendix A). Westat will also attach a separate file that contains instructions.
Data from each stakeholder group will be analyzed separately and then integrated to answer specific research questions (Table 4). Analysis of this qualitative data will primarily be descriptive. We will also conduct a descriptive analysis of the data extracted from background materials. Some data will be transformed into tabular format (e.g., to demonstrate budget appropriations or cost allocations over time).
Table B-2. ADD Assessment Analysis
Research questions |
Source of data |
Analysis |
|
ADD documents
Interviews with ADD staff |
Document review
Review and consolidation of interview summaries |
|
Interviews with ADD staff
Executive Director (ED) web-based survey |
Review and consolidation of interview summaries
Descriptive analysis of web-based survey |
|
ADD documents
Interviews with ADD staff |
Review of ADD documents
Review and consolidation of interview summaries |
|
ADD documents
Interviews with ADD staff |
Review of ADD documents
Review and consolidation of interview summaries |
|
Interviews with ADD staff
Federal disability partners |
Review and consolidation of interview summaries |
|
ADD documents
Interviews with ADD staff
ED web-based survey |
Document review
Review and consolidation of interview summaries
Descriptive analysis of web-based survey |
|
Interviews with ADD staff |
Review and consolidation of interview summaries |
|
Interviews with ADD staff
ED web-based survey |
Review and consolidation of interview summaries
Descriptive analysis of web-based survey |
|
Interviews with ADD staff
ED web-based survey |
Review and consolidation of interview summaries
Descriptive analysis of web-based survey |
|
National disability organizations
|
Review and consolidation of interview summaries
Descriptive analysis of web-based survey |
|
ADD documents
Interviews with ADD staff |
Document review
Review and consolidation of interview summaries |
|
Program visits to 60 DD Network programs
Telephone interviews with DD network program stakeholders
Self-administered questionnaires
Program materials
Web-based survey |
Integration of findings from all four sources of data in the full-scale study
Descriptive analysis of web-based survey |
|
ADD documents
Interviews with ADD staff
ED web-based survey |
Review of documents
Review and consolidation of interview summaries
Descriptive analysis of web-based survey |
|
Interviews with ADD staff
ED web-based survey
Federal disability-related partners
National Disability organizations
Projects of National Significance |
Review and consolidation of interview summaries of ADD staff interviews
Descriptive analysis of web-based survey
Review and consolidation of interview summaries of Federal disability-related partner interviews; descriptive analysis
Review and consolidation of interview summaries from PNSs; descriptive analysis |
|
ADD staff
ED web-based survey
|
Review and consolidation of interview summaries of ADD staff interviews
Descriptive analysis of web-based survey |
|
ADD staff
ED web-based survey
|
Review and consolidation of interview summaries of ADD staff interviews
Descriptive analysis of web-based survey |
|
Interviews with ADD staff
ED web-based survey
Federal disability-related partners
National Disability organizations
Projects of National Significance |
Review and consolidation of interview summaries of ADD staff interviews
Descriptive analysis of web-based survey
Review and consolidation of interview summaries of Federal disability-related partner interviews; descriptive analysis
Review and consolidation of interview summaries from PNSs; descriptive analysis |
Methods to Maximize Response Rates and Deal with Nonresponse
Identification of individuals to interview have, for the most part been in collaboration with Executive Directors or ADD. There has been excellent response, but when the contractor has been unable to interview a person who was selected, Executive Directors and ADD were asked for another name.
In the case of the web-based survey, Executive Directors have been asking ADD to include an assessment of ADD as part of the National Study of the ADD Programs for some time. Thus, ADD expects very good response to this survey. Nevertheless, within two weeks of distributing the questionnaire, Westat will follow up non-respondents by email to remind them to complete the survey. After two more weeks, another email will be sent, and after one more week, Westat will follow up with a telephone call.
We will keep track of those who do not respond to determine whether there are types of programs that have low response (e.g., region, allotment size, medical schools vs. non-medical schools for the UCEDDs). If we find significant differences in the types of programs that respond, we will control for this in our analysis by analyzing data separately according to the types of programs with low and high response. There are no plans to impute data.
Test of Procedures or Methods to be Undertaken
Westat staff worked with three DD Network program Executive Directors to develop the web-based questionnaire. Thus, no cognitive testing was undertaken.
Individuals Consulted on Statistical Aspects and Individuals Collecting and/or Analyzing Data
ADD
Jennifer Johnson
202-690-5982
Westat
Lynn Elinson
412-421-8610
File Type | application/vnd.openxmlformats-officedocument.wordprocessingml.document |
Author | Department of Health and Human Services |
File Modified | 0000-00-00 |
File Created | 2021-02-01 |