Conducting Research With Special Populations Flashcards

1
Q

What are special populations?

A
  • vulnerable to coercion or undue influenced
  • diminished autonomy - reduced mental capacity (ability to understand / process info) or voluntariness (freedom from the control of others)
  • capacity to consent is questionable
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2
Q

What are some examples of special populations?

A
  • children and young people
  • specific ethnic, cultural or minority groups (CALD)
  • prisoners and other institutionalised individuals
  • health and medical populations
  • people in dependent relationships
  • pregnant women and the human foetus
  • people highly dependent on medical care who are unable to give consent
  • people with a cognitive impairment, intellectual disability, mental illness
  • people involved in illegal activities
  • homeless individuals
  • people in other countries
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3
Q

Discuss children and young people as a special population:

A
  • Traditional views of children were that they were vulnerable, dependent and immature
  • Now we want to focus on their competency and place an emphasis on listening to children’s perspectives (involving the child’s preferences and rights)
  • Spans from preconception up to age 25.

Families can include people with
- competing or non-congruent interests
- varied levels of openness and candour
- different decisional capacity and dependence

We need to consider
- rights
- capacity to consent
- possible coercion
- privacy and confidentiality
- compensation

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4
Q

Example: Sol Krugman Hepatitis Experiment

A

In a school for children with intellectual disability, he deliberately infected children with hepatitis to study the development of a vaccine.
Parental consent were eventually sought (however he didn’t outline risks), but ethics were questionable.

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5
Q

Example: Johnson and Tudor - the Monster Study

A

Used orphaned children with and without a stutter, and manipulated positive reinforcement vs punishment.

Some children in the punishment condition developed a stutter.
They didn’t undo this distress they caused.

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6
Q

What is informed consent?

A
  • From young children on, they have a developing ability to understand information and should be involved in the consent program as much as possible.
  • No set age - but typically children under 16 do not give legal consent –> From age 18, must give informed consent.
  • But as soon as children are able to process information, we should be providing age appropriate information so they can give verbal assent.
  • need to also manage multiple relationships (parent-researcher and child-researcher)
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7
Q

What are some other forms of consent?

A

Opt out consent: e.g. school agreeing to a class being part of research and the parents have to opt out.

Standing consent: when parents give consent for children’s to be in studies throughout the year.

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8
Q

Rights and respect

A

Balance
- risk
- harm
- benefit

Need to consider if the research is likely to be physically or emotionally dangerous for a child.

And respect the developmental level of child when engaging them.

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9
Q

Privacy and confidentiality

A
  • discuss confidentiality and its limits with the parties upfront
  • explain (in age appropriate language) what confidentiality means and the exceptions
  • ensure the research team have plans for how breaching confidentiality will be handled
  • common reasons for breaching confidentiality include mandatory reporting and unsuspected risk of the child
  • reporting is required when a researcher suspects on reasonable grounds that a child is at risk of significant harm
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10
Q

Compensation

A

consider whether payment is appropriate and how much

for instance, small gifts may be more appropriate for children

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11
Q

How are people recruited?

A
  • schools (may need approval from the school system)
  • childcare
  • sporting and extracurricular
  • hospitals and clinics
  • parents / guardians vs children
  • government / health records
  • online and social media
  • newspapers and magazines
  • newsletters
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12
Q

What are some practical considerations of assessing chidren?

A
  • access
  • who is recruiting –> power and perceived coercion - if you’re looking for a kid with a specific condition, is it appropriate for the healthcare provider to be advertising that
  • consent process
  • participation time (during the day or straight after school - attention span), location and duration: i.e. testing in schools and hospital settings requires separate ethics approval
  • age appropriate assessment: measures (normed for that age), language, child vs other report, mother vs father vs teacher report
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13
Q

Clinical populations

A

Mental health research can help to answer many questions including:
- risk factors and causes of mental health problems
- prevention of mental health problems
- attitudes, opinions and preferences
- distinguishing typical vs atypical emotional, cognitive and behavioural functioning
- understanding the impact of mental health problems (personal, societal, economic)
- changes over time
- treatment and service delivery

Have to consider that mental health conditions are heterogenous and affect people in different ways (brief - chronic, mild - severe)

Can affect thoughts, feelings, experiences, and relationships of individuals and loved ones.

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14
Q

Dan Markingson - treatment of clinical populations gone wrong

A
  • he was involuntarily admitted to inpatient care
  • dr olsen his treating psychiatrist said that if he would be part of his study, he wouldn’t have to go into admission
  • they kept him in the study despite worsening symptoms and he ended up killing himself

Dan didn’t have the capacity to consent - he was experiencing psychosis, was coerced and there was a conflict of interest being that his lead investigator was his lead psychiatrist.

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15
Q

What are some ethical considerations in place?

A
  • the right to be included nad have opinion heard
  • beneficence and non-maleficence (risk vs benefits)
  • respect (regard participants with dignity and appreciation of their autonomy / privacy / capacities - use of language - protecting rights)
  • consent: consider whether capacity may be impaired (nature of the condition, medication / treatment, distress / discomfort, complexity f the project, fluctuations in condition, having the right to withdraw consent at any time
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16
Q

Other ethical considerations

A

Privacy and confidentiality
- personal implications of breaching confidentiality (stigma, employment)
- publishing of personal information

Conflict of interest
- clinicians involved in research
- client welfare vs desire to complete the research

Compensation
- should not be of a value that would unduly influence participation

17
Q

What are some practical considerations in selecting the correct sample to answer the research question?

A

Is a clinical sample necessary to answer the question?
- can it be answered using nonclinical samples
- can it be answered using clinical analogue samples (samples that have high levels of a symptom but no diagnosis)
- experimental manipulation ( can you do a mood induction instead?)

Do you need a control sample? Who is the best comparison?
These may be needed to know how
- clinical samples differ to non-clinical samples
- individuals with one disorder differ from those with other types of disorders
- if an intervention results in different outcomes

18
Q

How do you recruit clinical samples?

A

Feasibility of access:
- some conditions are low prevalence (vulnerable populations may not be eager to disclose their mental health status)
- consider the gate-keepers to accessing potential participants

Recruitment sources may include:
- clinics / hospitals
- health practitioners
- support groups
- online
- community advertising
- disorder related associations and foundations

Important to plan how to manage distress and risk
- immediate distress or risk
- referral options

19
Q

What are some methods for studying clinical populations?

A
  • direct vs indirect
    –> direct = ask individual people
    –> indirect = ask people who treat people with that disorder, or friends and family of those individuals
  • identifiable vs anonymous: sometimes you do need to identify people for compensation
  • methods: interviews, focus groups, questionnaires, observation, document reviews
  • manipulation vs no manipulation
  • self-report vs other-report vs interview vs observed
  • clinical trials
20
Q
A
21
Q

Clinical trial comparison conditions

A
  • placebo control and waitlist control
    –> yields some effects (30% in pharmacological trials)
    –> allows comparison to active ingredient
    –> concerns about withholding effective treatment
    –> may bias recruitment with more severe cases not enrolled (reduced generalisability)
    –> smaller sample sizes (cumulative risk is reduced)
  • active control
    –> is the experimental treatment better than other treatments
    –> controls for non-specific elements
  • washout studies
    –> gradually reduce existing medication to study when drug / intervention free
    –. differentiate symptoms related to a medication and/or withdrawal from disorder
  • must minimize risks and ensure rapid response to symptoms if necessary