Types of Research Flashcards

1
Q

What is evidence based practice?

A
  • Critical decision making
  • Integration of clinical experience, needs of patient and best supporting research evidence
  • Clinicians must know

◦ How & where to access evidence ◦ How to evaluate merits of evidence

◦ Distinguish between dogma and sound scientific evidence

◦ How to integrate scientific evidence into practice

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2
Q

Empiricism

A

Knowledge gained by experience & observation

ex) The tide is high when the moon is full.

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3
Q

Rationalism

A

◦ Knowledge gained by logical thought
◦ Deductive reasoning

ex) Tides are affected by the moon

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4
Q

Deductive Reasoning

A

-Structured approach utilizing an accepted premise (known as a major premise), a related minor premise, and an obvious conclusion.
-By following downward from the general to the specific, knowledge can be gained about a particular relationship.
-Major Premise:
◦ All students attend school regularly
-Minor Premise:
◦ John is a student
-Conclusion:
◦ John attends school regularly

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5
Q

Inductive Reasoning

A
  • Gathering of specific information in order to make general conclusions.
  • Allows new major premises to be determined.
  • Inductive reasoning has been adopted into the sciences as the preferred way to explore new relationships because it allows us to use accepted knowledge as a means to gain new knowledge.

ex)

- Specific Premise:
 ◦ John, Sally, Lenny and Sue attended class regularly
  • Specific Premise:
    ◦ John, Sally, Lenny, and Sue received high grades
- Conclusion: ???
 ◦ Attending class regularly results in high grades
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6
Q

Hypothesis

A

Theory with defined & testable variables

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7
Q

Dependent Variable

A

What is the outcome?

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8
Q

Independent Variable

A

What is the condition that we think will cause the outcome?

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9
Q

Confounding Variables

A
  • Variables that may influence results
  • Must control for these
  • Extraneous variables
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10
Q

Basic Research

A

◦ Development of knowledge

◦ No practical application

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11
Q

Applied Research

A

◦ Solve problem of immediate consequence

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12
Q

Descriptive Research

A

◦ Group differences, trends, relationships among factors

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13
Q

Experimental Research

A

◦ Exam effects of manipulating events or characteristics

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14
Q

Quasi Experimental

A

◦ Like experimental but w/o randomization

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15
Q

Ethical requirements aim to:

A

◦ Minimize possibility of exploitation
◦ Ensure that the rights and welfare of subjects are respected while they contribute to the generation of knowledge

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16
Q

What does the IRB do?

A
  • Ensure ethical requirements fulfilled
  • Check investigator biases & conflicts
  • Assure non-exploitation of subjects
17
Q

IRB Criteria

A
  • Risks are minimized
  • Risks are justified by anticipated benefits to subjects and/or importance of information to be gained
  • Subjects selected and treated fairly
  • Informed consent is adequate
18
Q

What is informed consent?

A
  • Individuals have the opportunity to decide whether or not they want to participate and continue participation based on:
    ◦ Disclosure of information
    ◦ Understanding
    ◦ Voluntary decision making ◦ Authorization
19
Q

Editorial Process

A
  1. Submit article
  2. Reviewed by Editor
  3. Assigned to Associate Ed
  4. Editorial Consultants chosen
  5. Blind peer review
  6. Decision
  7. (accept, accept pending revisions, defer pending major revisions, or reject)
  8. Author notified
20
Q

Primary sources

A
  • original research
  • professional journals
21
Q

Secondary sources

A

interprets, synthesizes information from primary sources (i.e. textbooks, literature reviews)

22
Q

Teritary sources

A
  • broad and rudimentary overview of topic
  • wikepedia
  • lay publications
23
Q

levels of evidence (EBP)

A
  1. Meta-analysis
  2. Randomized control trials
  3. Non-randomized controlled trials (i.e. cohort studies, before and after treatment vs. control group)
  4. Non-experimental studies (i.e. correlation, case study)
  5. Expert report, consensus
24
Q

continuous variables

A
  • measured along a numerical continuum
  • vary smoothly
    ex) degree of impairment, level of sound/stimulation, line graph
25
Q

Categorical variables

A
  • different values can be named
  • steps
    ex) impaired or normal, number of sessions, bar graph
26
Q

2 types of experimental research

A
  1. bivalent
  2. multivalent
27
Q

bivalent research experiment

A
  • only 2 values of the IV used
  • dichotomus
  • categorical data
  • ex) listening condition, binaural vs. monaural listening in noise; affect on speech recognition
28
Q

multivalent experimental study

A
  • several values (3 or more) of an IV
  • effect on the dependent variable
  • range of IV
  • more appropriate when IV is continuous, samples the range of possible variables
29
Q

Parametric Experiments

A

-effects of several IVs on the dependent variable

-ex) effect of age of ID, mode of communication, and duration of hearing aid use on aquisition of spoken lang.
-each IV has parameter
Age: continuous
Mode: dichotomus
Duration of HA use: continuous