Tips for Writing an Informed Consent
Obtaining informed consent is a process, not just a document, and
is central to the ethical involvement of human subjects in research.
Investigators should be forthright and realistic in describing the
benefits and drawbacks of participating in human subjects research
and in answering all questions posed by the subjects.
The information must be presented to enable persons to decide
voluntarily whether to participate as a research subject. The consent
process begins with the recruitment of participants, and continues
with a full description of the research purpose and personnel, procedures,
risks and benefits, and the reiteration that research is voluntary.
If the risks change during the course of the project, it is necessary
to re-consent the participants to ensure they are fully informed
and still agree to participate.
45 CFR part 46.116 declares that an informed consent must contain
the following information:
- that the study is research
- that participation is voluntary
- that there is no penalty for refusing to participate ·
that the participant can stop at any time
- what the risks of participation are · how any risks will
be minimized by the researchers
- what the benefits of participation are
- what the participant will be asked to do · when, where
and how long the research will be
- what the costs are for participation, if any
- what the payment for participation is, if any
- whom the participant may contact with any questions or concerns
Before you begin
The Informed Consent contains the same elements or categories as
the Protocol Statement, except the Subject Population section, and
should be written in the second person, addressed to the participant
(use the pronoun "you.") The informed consent must mirror
the protocol, in that you must make sure that the purpose of the
research, the procedures, risks, benefits, costs and payment if
any, are the same in the consent as in the protocol. For instance,
if the protocol states that an interview will be audiotaped, the
consent must also state that the interview will be audiotaped.
The prospective participants want to know what will happen to them
if they agree to participate. Your job is to tell them, clearly
and concisely. Therefore, the informed consent document must be
readable, to the IRB as well as to the prospective participants.
Use a 12-point font, and write at a 6th -8th grade level so that
the widest pool of prospects will be able to read it. Use everyday
language, for the same reason. Give them some white space. Save
esoteric bits of theory for the thesis, where presumably your advisor
will know what you mean.
The entire document is the informed consent. The
participants will get a copy of the entire form, signed by the researcher.
The subjects will then sign the document, and should get a copy
of the signed form. The subjects should have the complete document
as a record of the procedures and risks/benefits they have agreed
to, and for the researcher’s contact information. The
subjects must be given a copy of the entire document to keep, and
the researcher is required to keep copies of all consent forms,
signed by the participants, for at least three years. If
conditions of the research change, the changes must be approved
by the IRB before being implemented. If the risk to the subjects
increases or new procedures is introduced, the researcher must obtain
consent from the participants again to agree to the new conditions.
Sections of the Informed Consent:
A. Purpose and background:
Be sure this is understandable to the prospective subjects and correctly
represents the purpose of the research. The purpose of the research
should be boiled down to one sentence. The next sentence should
state why these particular people have been invited to participate,
and it should be the most basic reason: because they are in an undergraduate
Psychology class, because they are high school students who plan
to go to college, because they are between 18 and 34 and have a
cell phone, etc. Do not say “because I believe your insight
into this problem will greatly improve my thesis.”
B. Procedures:
State exactly what will happen to the subjects, how long it will
take, where the research will take place, how often they will be
asked to perform the research tasks. Use a bullet format to make
this very clear. Briefly state what the survey or interview will
be about, that is, what types of questions and demographic information
the participants will be asked, for instance, “you will be
asked questions about your cell phone usage, and your age and zip
code.” If a procedure is experimental, this must be emphasized.
The length of their time commitment is an important consideration
for most people, so give them a breakdown of each task, and give
them a total amount of time they can expect to be contributing to
your project. Do not include any of your time, such as analzying
statistics, or coding for themes. Only include the length of time
you will be interacting with the participants. This is usually no
more than two hours at the most. Interviews should not last longer
than one hour. That is about the amount of time people are willing
to volunteer for a master’s research project. The researcher
should be able to collect enough data in this time.
For a Parental Permission for a Minor to Participate
in Research, include in this section the type of information
parents might need to make the decision to allow their child to
participate: will the research be carried out during class time?
If so, how will the students make up the class work they will miss?
What alternatives are set up for those students who cannot or will
not participate? If this will be after school, how long will it
take? Will it affect their arrangements for getting their children
home after school?
C. Risks:
State each risk, and then state how the researcher will reduce that
risk. Take each risk one at a time, followed immediately by the
statement of how the researcher will try to reduce that risk. Risks
and mitigations listed in the consent form must be the same as those
listed in the protocol. Be sure to discuss how you will maintain
the confidentiality of the material, as well as protecting the subject’s
privacy. (Privacy refers to the person, confidentiality to the data.)
D. Benefits:
As in the protocol, the standard wording here is: There are no direct
benefits to you for participation in this study. Direct benefits
are major or universal benefits, such as getting a specific experimental
drug therapy, or curing a disease. If you anticipate indirect benefits,
use the conditional tense, as in: Benefits may include a greater
understanding of the motivation to exercise.
E. Alternatives:
Alternative therapies, treatment, class work, extra credit arrangements,
etc. must be revealed. If none of these applies, the alternative
is not to participate in the research study.
The subjects must be informed of alternatives for earning extra
credit for classes, or alternative classroom assignments if they
will not participate in the research. The usual wording is either
" You have been informed of the alternative therapies/methods
of earning extra credit/class assignments," or "The alternative
is not to participate in the research study.”
F. Costs:
Include them if there are any. This section must mirror the protocol
cost section. If you state that the participants will have to pay
for transportation and parking in the protocol, state the same in
the consent.
G. Remuneration:
Include if relevant. Payment can be cash, gift certificates, goodie
bags, stickers or anything else you might give the participants
as thanks for taking part in the study.
H. Questions:
The subject should be able to contact one or more of the researchers
as well as someone not involved in the research, such as the researcher’s
advisor or the IRB, in case they have any concerns about the research
that they may not want to tell the researcher. The researcher's
name and email address should go in this section, along with the
research advisor's contact information. We recommend using email
or a college or department telephone number, rather than home numbers.
Include the contact information for the Committee for the Protection
of Human Subjects (at the end of this page.)
I. Consent:
It is important that the researcher stress the voluntary nature
of the research, the ability to stop at any time, and the lack of
any penalty for non-participation at this point in the consent form.
Use the "penalty paragraph" in the informed consent template.
Formatting Tips:
Consider your audience. The subjects may not understand
acronyms or jargon peculiar to the researcher’s own discipline.
Do not use them, or if it is unavoidable for some reason, explain
what they mean.
The protocol and all consent forms, questionnaires, permission
letters, etc. are separate documents. Number all pages "1 of
_" in that section. For instance, the informed consent should
be numbered “1 of 2.”
The research title and the researcher's name must be at the top
of each page as a header.
Signatures cannot stand alone on the second (or last) page. They
must directly follow the information to which the subject is consenting.
Signatures should fit on page 2 of 2. If they cannot, the researcher
should tighten up the writing or the spacing, unless the consent
is very complicated and contains many procedures.
Individuals who do not speak English will need a translation into
their own language. However, wait until the IRB approves the informed
consent in English before translating the document. Some individuals
may need an advocate to help them comprehend the study and the consent
form; in these cases, the advocate should sign as a witness
Special Consents
Parental Permission for a Minor to Participate in Research
If the subjects are under 18, they will need their parents’
permission is to participate in research. This document should be
formatted exactly as the informed consent document, referring to
"you" or "your child". For instance, under Procedures,
a researcher would write:
"If you agree to let your child participate in
this study, you can expect the following to happen: Your child will
be asked to complete a survey on fiction the class has read this
semester. This survey will take approximately 15 minutes to complete
and will take place after school in the school cafeteria."
Include the type of information that parents might need to make
the decision whether or not to let their child participate. Will
the research be carried out during class time? If so, how will the
students make up the class work they will miss? What alternatives
are set up for those students who cannot or will not participate?
If this will be after school, how long will it take? Will it affect
their arrangements for getting their children home?)
Minor's Assent to Participate in Research
Because children under 18 are not adults, they do not have the legal
ability to consent to research participation. However, they can
give or deny their "assent," and if the research includes
children between the ages of 8 and 18, assent is required in addition
to the parental consent. See Guidelines
for Obtaining Minor Assent for information on obtaining
verbal assent from very young children under the age of 8, and brief
written assent from older children aged 9 through 13. High school
students should be able to read at the level of the parental consent,
if it is written at an 8th grade level.
The child should have the opportunity to decline to participate,
even if parents have agreed to let them participate. Do not include
signature lines for the parents on the child assent form, or vice
versa. The two documents must remain separate, with separate signatures,
so the child has the option to decline without undue parental influence
to participate.
Consent for Anonymous Surveys
This is also known as "implied consent,” and eliminates
the need to get signed consent forms from a large number of respondents
on very low-risk surveys.
If any of the survey questions are sensitive in nature, a sentence
should be added to the consent stating that: "You might feel
some discomfort in answering these questions." The mitigation
of this risk is: “You do not have to answer individual questions
and you can stop answering questions at any time." A sample
is under Forms and Templates.
Verbal Consent
Verbal consent is allowed where written consent is impossible (as
when the subjects were part of an adult literacy program and did
not know how to read or write.). It is also granted in situations
where the consent itself is the only record linking the subject
and research, where the principal risk would be potential harm resulting
from a breach of confidentiality.
In these cases, the research must also present no more than minimal
risk to the subjects, and involve no procedures for which written
consent is normally required outside the research context, or the
research could not practicably be carried out without the waiver
or alteration. In these cases, the IRB may require the investigator
to provide subjects with a written statement regarding the research.
(In our example, the statement was read to the participants in the
presence of a witness who signed a form indicating that the subjects
understood and agreed to the research conditions.)
Focus Group Consent
Group discussions, or focus groups, contain an added risk of loss
of privacy, because the nature of the discussion process is such
that the researcher cannot guarantee that participants will not
talk about what took place in the group once the group has dispersed.
The "extra privacy protection for focus groups" is that
the researcher will discuss the need for keeping the proceedings
confidential with the group at the beginning, throughout the process
and again at the end. A paragraph stating this should be included
in protocols and consents for focus group subjects. Some researchers
ask the participants to sign a brief statement that they will not
discuss what happened in the group outside of the group.
Last Updated: November 2007
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