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Field Interviewer Manual |
With every scientific survey, there are many necessary components that contribute to the overall success of the research. This is especially true for an enormous survey such as the NHSDA. As a professional field interviewer for this study, you are responsible for one of the most important aspects of the study: making sure the interview is administered properly according to acceptable survey procedures. This Chapter discusses the steps required to prepare for an interview and offers suggestions for dealing with some respondent situations you may encounter. Instructions about the NHSDA interview are provided in Chapter 8, while instructions for administering the CAI questionnaire and using the CAI Manager are outlined in Chapter 5 of the FI Computer Manual.
7.2 Your Role as a Professional Field Interviewer
Always keep in mind that you are a professional doing a very important job. As a professional, you are expected to possess a great deal of knowledge about the survey you are conductingits purpose, the type of sample, the interview process, etc. You must be knowledgeable about what you are doing and why it is being done, and you must be prepared to answer any questions a respondent might have.
As a professional Field Interviewer (FI), you must always maintain the highest of ethical standards, collecting data with complete objectivity and treating with the utmost confidentiality and respect all information gathered or observed during an interview. You must convey to every respondent that you are a professional Field Interviewer, that you are completing the interview in a completely confidential manner, and that you are not affected by any personal biases, opinions or prejudices.
Following the questionnaire administration procedures and ethical standards is absolutely critical. Any FI found to have violated these procedures may be terminated immediately. We are asking you to maintain high response rates AND to follow all procedures exactly. We know that sometimes those two goals might not be easy to achieve togetheryou may even lose a case if a respondent refuses to complete the interview "by the rules." The important point is to make every effort to obtain all interviews according to specified procedures.
All respondents to be interviewed are identified in the screening process using the Newton handheld computer. When you screen a household, the Newton instructs you to conduct one, two or no interviews at that household. You may also have other cases transferred to you for completion that were screened by a different field interviewer. Your Field Supervisor (FS) will keep you informed of such situations.
At the Respondent Selection screen, the Newton tells you what kind of interview you should administer to the selected respondent(s). For each interview, the Newton lists the respondent selected, the roster number, the Mode (either "NHSDA Interview" or "Validity Study"), and demographic information from the roster. The Newton also assigns a QuestID automatically that is displayed on the screen below the mode. (Recall that only certain FIs will conduct Validity Study Interviews.)
Whenever possible, proceed with the interview immediately after you finish the screening. The best way to achieve high response rates and be efficient is always to try to complete the interview when you are already at the SDU and have identified the respondent(s) to be interviewed. If one or both respondents are present and willing to participate, begin the interviews. Remember that if two respondents in the same household are selected to complete interviews, never complete both interviews simultaneously. Try to schedule these back-to-back instead.
If you cannot conduct an interview at the time of screening, try to schedule an appointment while you are at the DU. If the respondent offers you his/her phone number to set an appointment, accept the number, recording it in the Newton ROC for the case. However, do NOT specifically ask for a phone number as this may raise concerns about confidentiality. A respondent freely offering a telephone number is acceptable, but an FI requesting a number is not. Also, for your personal security, do not give your phone number to the respondent. Record the appointment information for the appropriate respondent, either Interview A or Interview B, in the Record of Calls on the Newton on the Interview Call Record screen.
For example, you may complete a screening and one person is selected but is not at home. Once you finish the screening and enter the ROC information for the 31, add an event for the interview's Record of Calls52 (R unavailable) in this examplefor the A case. The Newton automatically enters the date and time of the event. Complete this step at the SDU after screening.
The first interview contact you enter in the Record of Calls is the interview result for that respondent from the screening visit.
7.3.1 Assigning Interview Result Codes
You are responsible for assigning interview result codes, recording them in the Newton Record of Calls, and discussing them with your FS throughout the data collection period. Like screening codes, interview result codes are either "pending"or "final." Assigning the proper code is critical because result codes are used in progress reports to evaluate the status of fieldwork. RTI managers then use these reports to make important decisions about how best to manage the project. It is very important that you understand when and why to use each kind of code.
If you have a final screening code of 31 (one selected for interview) or 32 (two selected for interview), assigning interview result codes follows the same process as assigning screening result codes (see Chapter 6). Always remember to enter the appropriate pending or final code for every screening that results in a code 31 or 32. The following summarizes how to enter interview result codes:
One Selected for Interview (Screening Code 31)
Two Selected for Interview (Screening Code 32)
If you forget who was selected for interview A or B or need to enter data at a later date or time:
From the Record of Calls screen, tap the Sels button on your Newton. This will take you to the Respondent Selection screen where roster information for interviews A and B is displayed. This should give you enough information to identify and add a call record for the correct respondent.
OR
7.3.2 Interview Result Codes
Both pending and final interview result codes are described in this section.
PENDING INTERVIEW CODES
Pending codes are assigned when the case is not yet complete. Explanations of when to use a particular code, and what action to take to resolve the situation so that the case can be completed, are as follows:
50 APPOINTMENT FOR INTERVIEW
USE WHEN: You have spoken with the respondent and have set a time to conduct the interview.
51 NO ONE AT DU
USE WHEN: No one is at the DU.
ACTION:
52 RESPONDENT UNAVAILABLE, CALL BACK
USE WHEN: Someone is at the SDU but not the selected interview respondent.
ACTION:
53 BREAKOFF (PARTIAL INTERVIEW)
USE WHEN: You have started the interview and the respondent you are interviewing either refuses to allow you to complete the interviewing process or cannot complete the interview at that time.
ACTION:
54 PHYSICALLY/MENTALLY INCOMPETENT
USE WHEN: The respondent is unable to meaningfully answer the questions. Examples are respondents with pronounced mental retardation, autism, or who are intoxicated. Also, physical problems due to serious illness, deafness, or severe speech disorders may qualify.
ACTION:
55 LANGUAGE BARRIER - SPANISH
USE WHEN: The respondent speaks Spanish and does not speak English well enough to complete the interview.
ACTION:
56 LANGUAGE BARRIER - OTHER
USE WHEN: The respondent speaks a language other than English or Spanish and does not speak English well enough to complete the interview.
ACTION:
57 REFUSAL (BY RESPONDENT)
USE WHEN: The respondent refuses to let you start the interviewing process. This code is for adult respondents and for youth respondents who refuse to complete the interview. If a parent refuses to give permission for a youth to be interviewed, use code 58 Parental Refusal, whether or not the youth is willing to be interviewed.
ACTION:
58 PARENTAL REFUSAL FOR 12-17 YEAR-OLD
USE WHEN: The parent refuses to allow you to interview the selected youth.
ACTION:
59 OTHER
USE WHEN: The situation you encounter does not fit into any of the categories above.
ACTION:
FINAL INTERVIEWING CODES
Final interview result codes indicate the case is finishedeither because the interview was successfully completed OR because you were unable to obtain an interview. For noninterviews, be sure you have completed all suggested, relevant steps described in the pending codes section before asking your FS for approval to assign a final code. Consult with your FS for any additional strategies. If all of these attempts fail, your FS must agree that the case is complete and must approve your use of a final noninterview code.
The following list describes the final codes:
70 INTERVIEW COMPLETED
The respondent has completed the interview.
71 NO ONE AT HOME AFTER REPEATED VISITS
Given the importance of each and every interview, we expect diligence in pursuing selected household members. However, if your repeated attempts at different times of the day and days of the week fail and your FS agrees, then use this code.
72 RESPONDENT UNAVAILABLE
We hope that with persistence this code will be used rarely. However, there may be situations in which the respondent is out of the country or institutionalized (hospital, etc.) and will not be returning before the end of the data collection quarter. For respondents who move and cannot be contacted at the new address, use code 79, not 72. After you have investigated the situation fully, your FS must approve your use of this code.
73 BREAKOFF - PARTIAL INTERVIEW
Use this code if all attempts to complete the interview have been unsuccessful and your FS approves.
74 PHYSICALLY/MENTALLY INCOMPETENT
If the respondent is physically or mentally unable to respond meaningfully to the interview questions, your FS will approve the use of this code.
75 LANGUAGE BARRIER - SPANISH
Use this code if the case cannot be completed because of a Spanish language barrier and no bilingual interviewer was available to complete the case. Your FS must give approval.
76 LANGUAGE BARRIER - OTHER
Use this code for any interviews that cannot be completed due to a language barrier other than Spanish. We do not certify interviewers to conduct the interview in other languages. Be sure to specify the language in the ROC comments. Your FS must give approval.
77 FINAL REFUSAL BY RESPONDENT
If all attempts to convert an adult or youth refusal are unsuccessful, your FS will approve the use of this code. Be sure you indicate the reason for the refusal in the Newton Refusal Report.
78 PARENTAL REFUSAL FOR 12-17 YEAR OLD
If all attempts to persuade the parent or guardian to allow you to interview the youth are unsuccessful, your FS will approve the use of this code. Be sure to complete the Newton Refusal Report.
79 OTHER
Use this code only for cases that do not fit any of the other categories such as if the selected respondent is found to be under age 12 or in the military. Also use this code for respondents who move and cannot be contacted at the new address. Be sure to fully describe the situation in the Comments section of the ROC and talk with your FS for approval to assign this code. Carefully consider if another result code applies, since each case with a code 79 must be reviewed by RTI staff.
7.3.3 Method of Contact
As was described in Section 4.4.2 for screening contacts, record the method of contact for each interviewing ROC record you enter. The definitions of the various modes of contact are provided in Section 4.4.2 and listed in the Showcard Booklet for easy reference.

There are two differences between the screening and interviewing lists:
For interviewing, the option "Telephone (pre-authorized by NFD)" has been removed from the list since telephone interviewing is NEVER an option for the NHSDA. As explained earlier in Section 7.3, a respondent may offer you a telephone number to confirm an appointment time. If you subsequently contact the respondent by telephone, select the 'Other' option as the mode of contact and document the situation in the Comments. (Remember not to ask a respondent for a telephone number.)
7.4 Contacting the Selected Respondent(s)
Chapter 4 discussed the process for contacting a sample dwelling unit for screening. The techniques for contacting interview respondents are similar, except that selected interview respondents usually are familiar with the reason for your visit. Other strategies and tools for contacting selected respondents are outlined here. Review the list of CAI interviewing materials in Appendix A before leaving your home and make sure you have all necessary paperwork and equipment.
7.4.1 Initial Contacts
As mentioned before, you should always attempt to complete the interview at the time of screening. If necessary, ask the screening respondent to locate the selected respondent for you.
If you must revisit the SDU to contact the selected interview respondent, go to the Newton Record of Calls screen to view all the previous visit information. To see who the selected person is for the SDU you are contacting, tap on Sels (for selections) to review the roster information for your selected household member. This screen also gives you the Questionnaire ID (QuestID) to enter into your Gateway computer before the actual interview begins (see Chapter 5 of the Computer Manual).
If you also want to see the completed roster for the household, simply tap View HH Roster. Use this information to identify which person to speak with at the unit. You can also view the respondent selection(s) and household roster information from the Select Casescreen. Tap the line for the case you need to review. Tap Actions, then tap View Selections/Roster.
Approach the selected respondent using an introduction similar to the one used for screening. Keep it simple and straightforward. It may help to mention which member of the household was the screening respondent, since this person may have discussed the situation with the selected person. If you need to review who the screening respondent was, the household roster displays which of the roster members was the SR.
7.5 Obtaining Interview Participation
Convincing persons who are selected for the interview to participate in the study is an important part of your job as an FI. The selected respondent may not have been the screening respondent and may be unfamiliar with the study. Persons who were the SR are aware of the importance of the study, but keep in mind that respondents who willingly completed a 5-minute screening may need additional convincing to complete a more lengthy interview.
Be sure you are thoroughly familiar with the background information on the study (see Chapter 1) and are comfortable answering questions about it (see Chapter 5). Specific questions relating to the interview and suggested responses are given in Exhibit 7.1. Be comfortable with these topics as well. Remember that the specially designed refusal conversion letters in Appendix C are available to help convert reluctant respondents. See Section 5.4 for more information about refusal letters.
| I don't use drugs. How can I help you? Are the questions personal? What type of questions will you ask? Will my family get to see my answers? |
We are interested in the practices, beliefs, and activities of all Americans, including those who do not use illicit drugs. Also, the questions ask about the use of tobacco products such as cigarettes, prescription medications, and alcohol. Even if you do not currently use any of these items, it is important for us to learn that information too. Some questions may seem a little personal to some people. All answers are confidential; no one elsenot even those in your own householdwill know what you said. You don't have to answer any question that you don't want to answer. The questions are about your past and current use of various substances and medications. Some questions ask about types of behaviors so we can learn whether certain behaviors indicate patterns of abuse. You may decide not to answer a certain question. No. You will be interviewed privately. When we are finished, the case will be closed and no one can go back into itnot even me. Then it will be transmitted straight to RTI that night. Rememberwe pledge to keep your responses completely confidential.
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Often, someone is apprehensive about participating in a "survey." In some instances, their cooperation in the past has resulted in subjection to disguised sales promotions. Using the words "study," "research," or "interview" can be helpful. Assure the respondent that you are not selling anything. Show the respondent the NHSDA Highlights and Preliminary Results to explain how the data are used.
In many cases, you will find that the computerized nature of the study will be a positive factor in convincing many respondents to participate. If your interview respondent was also the screening respondent, he/she already observed you conducting the selection process with the Newton handheld computer. This alone may create interest in completing the interview on the Gateway. Young people in particular are often interested in and familiar with the technology. The privacy afforded by completing more sensitive questions using the computer has been shown to be particularly important in getting honest answers from youth respondents.
For individuals who seem intimidated by the technology, such as some elderly respondents, try to begin the interview by suggesting that they try the initial questions to see how easy it will be to complete the interview. Field staff report that some respondents who were initially hesitant became more confident as the interview progressed and were practically sold on computers by the end! Assure a potential respondent of how simple it will be to complete the interview and that you will be present to help with any problems that might arise.
Sometimes you may encounter a reluctant respondent whom you suspect is making an appointment for the interview at a later date with no intention of keeping the appointment (an "unstated refusal"). If you believe this may be the case, suggest that the respondent just try a few questions now to see how it goes. Once into the interview, most respondents will complete it.
7.5.1 Dealing with Minors
In addition to surveying adults, the NHSDA surveys young people ages 12-17. Completing an interview with a minor requires the consent of both the youth and his/her parent or guardian. The only exception to this rule is in the case of emancipated minors living on their own, including college students not living at home. In these cases only, you may conduct an interview without an adult's permission.
Sometimes when screening, you may encounter respondents who are reluctant to provide information about young people in the household. Be sure to emphasize that the screening questions are important and ask to list the residents age 12 and older living in the household. Point out that a youth residing in the unit may or may not be selected to participate in the interview portion of the study.
If a young person is selected for an interview, the parents/guardians may be hesitant to give consent for a "stranger" to ask the young person questions. Allow the parent to review the informational materials, including the Authorization Letter. Since this is a computer interview we don't have a paper questionnaire, but you can offer to show the parent the summary of the NHSDA questionnaire (see Exhibit 7.2)included with the Job Aids in the Showcard Booklet. If desired, you have copies of this summary to give to respondents to keep as well. Also, suggest looking at the NHSDA Website (http://nhsdaweb.rti.org) for more information. If necessary, the parent may call your FS or RS for additional confirmation of your status as a professional Field Interviewer for RTI.
Exhibit 7.2 Summary of the NHSDA QuestionnaireYou have asked to know more about the National Household Survey on Drug Abuse (NHSDA) and the types of questions the interviewer will ask. Below is a summary of each section of the questionnaire for you to examine. Keep in mind that not everyone will see every questionthe questions depend on the respondent's own experiences. Furthermore, respondents can always refuse to answer any questions during the interview. Demographics
Sample Questions:
Computer Practice Session
Cigarettes, Alcohol and Illicit Drugs
Tobacco Products and Alcohol
Sample Questions:
Illicit Drugs
Sample Questions:
Adult Social Environment and Mental Health Respondents 18 and older receive questions about their social experiences such as: availability of illicit drugs, perceptions of their neighborhood, their relationship with their spouse or partner, and in some cases, their experiences as a parent. Mental health questions cover such topics as depression, social anxieties, and treatment for mental health problems. Sample Questions:
Youth Experiences and Mental Health Youth ages 12-17 participating in the survey are also asked questions about their social experiences such as: perceptions about the effects of using certain drugs; whether getting drugs is difficult or easy; feelings about school and peers; and involvement in clubs, sports, and other extracurricular activities. The mental health questions assess youth respondents' use of services aimed at treating mental health problems.Sample Questions:
Health Care & other Demographic Information In this section, the laptop is handed back to the interviewer, who asks questions about education, health insurance, health care access, and family income information to help in analyzing the data. An adult in the household may be asked to help youth respondents answer some of these questions. The answers to these questions increase the government's knowledge about health care, especially as it may relate to drug use or treatment. This information helps in planning health care services and finding ways to lower the costs of care. Sample questions:
Please feel free to ask the interviewer if you have any other questions about the questionnaire. Thank you for your cooperation and help! |
Examples of some responses you may provide to parents include:
Although it may seem like a difficult process to obtain consent from both the parent and the youth and to find a time to complete the interview, the vast majority of adolescents complete the NHSDA survey.
Suggestions for converting youth refusals are included in Exhibit 7.3.
Exhibit 7.3 Countering Youth Refusals
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Exhibit 7.4 Certificate of Participation

7.6 Informed Consent Procedures
Even after a respondent has initially agreed to the interview, you must follow the informed consent procedures. The respondents' Right to Informed Consent is a critical part of any legitimate survey. This means each person must receive all the information necessary to make a completely informed and knowledgeable decision about participating. Even if someone immediately agrees to be interviewed, you are still required to review the basics before you begin the interview.
A potential respondent must be informed of:
This information must be made available to each respondent. Based on years of experience collecting NHSDA data with no reported incidents, the usual requirement of informing a potential respondent about any known risks is not necessary. (Refer to Section 4.10 for more information.) As explained in the next sections, the complexity and amount of information presented for informed consent varies depending on whether your respondent is an adult or youth.
7.6.1 Adult Informed Consent
The information you present to a selected adult respondent (age 18 and older) during the informed consent process is found in the front of the CAI Showcard Booklet (see Exhibit 7.5). The Introduction for CAI Sample Members 18 or older is read to adult respondents and explains what is required during the interview. Give the respondent a copy of the Study Description to keep. Be sure the respondent appears to understand the contents before you continue.
Exhibit 7.5 Introduction 18 or Older

7.6.2 Parent/Guardian Consent to Approach Youth
Because we will be interviewing minors aged 12-17, we must first obtain parental permission to interview the youth. Before approaching the youth, first introduce yourself and the study to the youth's parent or guardian using the information on the back of the Introduction for CAI Sample Members 18 or older in the Showcard Booklet.
The only exception to obtaining parental permission is in the case of emancipated minors who are on their own, such as college students. In these cases, proceed with adult Informed Consent procedures.
7.6.3 Youth Informed Consent
Once the parent agrees, we ask for the youth's agreement to participate. Read the information from the Introduction for CAI Sample Members 12-17 years old, which is in the Showcard Booklet (see Exhibit 7.6). Give the respondent a copy of the Study Description to keep. Observe the youth's reaction carefully. Getting the youth to participate is not typically a problem. However, keep in mind that a youth's failure to object does not mean he or she understands the consent process, and should not be taken that way. Use your judgment. Do NOT begin an interview with a youth until you are satisfied that he/she understands what you are asking and is willing to proceed.
Exhibit 7.6 Introduction 12 - 17

If the youth seems to have trouble understanding, determine if the problem is temporary. If he/she is drunk or high, end the visit and return at another time. If necessary, involve the parent in the decision about whether or not to proceed.
Being comfortable with the logistics of setting up the computer and starting the interview makes it much easier for you to focus on establishing rapport with respondents, gaining their cooperation, and answering any questions they may have. Practicing this beforehand improves your chances of doing this correctly during an actual interview.
7.7.1 Choosing a Location
Once you have obtained consent for the interview, ask the respondent where would be the best place to conduct the interview. Consider the following issues when choosing the best location:
Given these constraints, try to be as flexible as possible without compromising the standards and rules for administering the interview. For example, if someone cannot meet you in their home because of their schedule or concerns about privacy, try to find a mutually convenient place such as the place of work (if allowed). Because the computer can run on battery power, it is also possible to conduct the interview outdoors if necessary, such as on a porch, the front steps, or sitting on the curb. The respondent can then rest the computer in his/her lap. Whatever location you agree upon, make sure there is the necessary privacy and convenience for the respondent to complete the survey honestly.
Obviously, the NHSDA is a personal visit survey. While you may in unusual circumstances ask your FS/RS/RD for prior approval to conduct a household screening using the telephone, the CAI interview must always be completed in person.
7.7.2 Privacy
For several important reasons, the NHSDA interview should be conducted in private:
Due to cultural differences, the perception of privacy varies among ethnic and racial groups. For some, privacy may not be viewed as achievable or even desirable given the number of people living in the residence. Experiences often are openly shared with family members. The presence of an infant or very small child usually is not a problem. Encourage those with very young children to schedule the interview for a time when someone can assist with the children if possible.
In some instances a household member, such as a parent, may insist on being present during the interview. A parent should be present in the house during a teen interview unless they have given explicit permission to conduct the interview when they are not at home. However, a parent should not be in the same room and able to view or hear any of the questions or answers. If the parent wishes to be present in the room during the administration of the survey, explain that the youth must be able to listen and answer all questions in privacy. Explain to the parent that respondents are generally more honest-thus providing higher quality data-when allowed to answer the questions privately. It is important that the youth be comfortable enough with the situation to answer questions honestly. The presence of a parent may seriously compromise the data we receive. Well-meaning persons may try to clarify or explain a situation the youth has described or coach the youth on answers. Inform the parent that the study is very interested in the answers of the youth and would like him/her to answer without any outside influence.
If the parent still insists on being present, go on with the interview but make sure the parent cannot hear or view the questions or answers. If this is not possible and there is no privacy, politely stop the interview and reschedule for another time. Document either situation in the Newton ROC and FI Observation questions at the end of the interview.
In general, if privacy is disrupted briefly by someone walking past the room during the CAPI portion, stop reading questions until the person is gone and a private setting is reestablished. If household members are present or interrupt often during the CAPI portion, one way to achieve greater privacy is to position the respondent next to you so he/she can read the questions and response categories on the computer screen and then say the number or letter or simply point to the answer on the screen. That way, other household members passing do not hear the questions or answers. Looking at the screen allows the respondent to answer with a number or letter so other household members do not know the responses. This would not be effective when interviewing a poor or nonreader, however, who needs to hear the questions and responses read aloud.
Finally, if you believe the setting is not private enough for the respondent to answer truthfully, offer to return to the household when you can complete the interview in private.
7.7.3 Setting up the Computer
When you choose a spot to set up the computer for the interview plan to sit opposite or catty-corner to the respondent. Here are some ergonomic considerations to maximize your own comfort and that of the respondent when setting up the equipment. Whenever possible:
Just a few adjustments like these will greatly increase your comfort and the respondent's comfort in the short and long-term.
Once you are in a private location, assemble your equipment and materials.
When the password prompt appears, you are ready to begin the interview. See Chapter 8 of this manual as well as Chapter 5 of the Computer Manual to read about the procedures for conducting a CAI interview.
REVIEW OF Chapter 7
Preparing to Interview
To assist your learning process, read the following summary of key points in this chapter. Following the summary are several questions to ask yourself. These questions will help you identify those areas you understand, and pinpoint the areas where you would benefit from re-reading a particular section.
SUMMARY
QUESTIONS TO ASK YOURSELF
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This page was last updated on December 29, 2008. |
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