205 FINAL Flashcards
Elements of a clinical question
- the situation
- the intervention
- the outcome
PICOT
Population/Problem
Intervention
Comparison
Outcome
Timeframe
SPIDER
Sample
Phenomenon of Interest
Design
Evaluation
Research type
Variables
Attribute/property in which organisms vary
Independent variable
Presumed effect on DV
Manipulated
Dependent variable
Presumed effect varies with a change in IV
Not manipulated
Research (scientific) hypothesis
States expected relationship between variables
Directional hypothesis
States which way the relationship exists
Nondirectional hypothesis
States the relationship exists, but not the direction
Null (Statistical) hypothesis
States that no relationship exists between variables
Level 1
Systematic review/meta-analysis of RCT
Level 2
One well-designed RCT
Level 3
Quasi-experimental trial
Level 4
Single non-experimental trial (case-control, cohort, correlational)
Level 5
Systematic reviews of qualitative studies
Level 6
1 qualitative study
Level 7
Opinions of authority/reports
Systematic Reviews
Type of literature review that uses rigorous methods - also called evidence studies
Basic Ethical Principles
Respect for Persons
Beneficence
Justice
Respect for Persons
Individuals as autonomous agents
Beneficence
Kindness/charity acts going beyond duty
Justice
Treating people fairly
Informed Consent
Ongoing communication and participant protection
- potential risks/benefits
- confidentiality and anonymity
- voluntary participation
- ongoing process of communication and mutual understanding
Process Consent
Informal - give consent by continuing participation
Assent
Expression of approval/agreement
Research Ethics Board
Review research projects to assess whether ethical standards are met in relation to the protection of the rights of human subjects
Exempt
low risk, non-vulnerable, nonsensitive, short duration
Expedited review
Minimal risk, non-vulnerable, nonsensitive
Fraud
Data is falsified, fabricated, or subject have been coerced
Misconduct
Not keeping up to date on scientific evidence
Indigenous peoples
Represents numerous cultures, not a single population
Indian
Indigenous people in Canada who are not inuit
Status Indian
Registered under the indian act
Treaty Indian
Status indian who belongs to a FN under the crown treaty
First Nation(s)
Personal group of RN legally known as an Indian Band
Truth and Reconciliation Commission (TRC)
Discovering and revealing past wrongdoings in hopes of resolving many of the issues
Indigenous knowledge
Ways of knowing/knowledge systems based on Indigenous communities, language, traditions and history
Indigenous Methodologies
Theory and process of conducting research that reflects Indigenous worldviews
Two-eyed seeing
Seeing both Indigenous AND western knowledge
Critical Appraisal
Process of carefully and systematically examining research studies to ensure trustworthiness, value and relevance
Literature Review
Discover what is known about a topic
- theoretical or conceptual framework
- primary and secondary sources
- research question and hypothesis
- design and method
- outcome of analysis
Phenomenological design purpose
compare finding to literature to further knowledge
Grounded theory design purpose
Constant comparison of findings to literature
Ethnographic design purpose
Literature concepts provide a framework
Historical design purpose
literature is the data source
Data-based literature
Literature and studies found in journals (empirical/scientific), starts with CINAHL
Conceptual literature
Reports of theories or reviews, “how-to” articles
Experimental research
manipulation of IV, randomization, control extraneous variables
Quasi-experimental research
no randomization, naturally occurring comparison of groups, statistical control of extraneous variables
Nonexperimental Research
Examine events, people and situations as they naturally occur
Antecedent variable
occurs before the study but may affect DV
Extraneous variable
May interfere with results
How to increase control of research
Objectivity
Accuracy
Feasibility
Homogenous sample
Constancy
Manipulation
Randomization
Objectivity
Absence of personal bias/feelings
Accuracy
appropriate design to questions
Homogenous sample
inclusion/exclusion criteria balance
Constancy
keep study the same
Manipulation
between groups (experimental/quasi-experimental)
Randomization
Gives the MOST control
Internal Validity
Did the IV change the DV, or was it something else
External Validity
if study can be generalized/extended to other populations
Threats to internal validity
History
Maturation
Testing
Instrumentation
Mortality
Selection Bias
Threats to external validity
selection effects
reactive effects
measurement effects
Conceptual definition
Accepted definition of a concept
Operational definition
translates conceptual into something measurable
Data collection must be…
objective (free of bias) and systematic (collected in same methodical way)
Quantitative data collection methods
physiological/biological
observation
scientific observation
interviews/questionnaires
Physiological/Biological measurements
biological and physical indicators of health
A: Objective and precise
D: Reactive effects, calibration, consistent use
Observation
Observation are consistent with study’s objectives and theoretical frameworks - standardized and systematic, trained data collectors
Scientific Observation
Concealment with intervention
Concealment without intervention
No concealment without intervention
No concealment with intervention
Interviews and Questionnaires
Open-ended (qualitative)
Closed-ended (quantitative)
D: Social desireability
Process of constructing new instruments
- define the construct to be measured
- formulate questions
- assess items for content validity
- write instructions
- pretest and pilot test new instrument
- assess reliability and validity
Reliability
consistently measures what it is meant to measure
Inter-rater reliability
consistency between 2 or more observers
Test-retest reliability
similar results when same test is used more than once
Validity
Accurately measures what it claims to measure
Construct validity
does it measure the concepts its meant to?
Content validity
does the test represent what is aims to measure?
Face validity
is the content suitable to its aims?
Quantitative position of researcher
independent observer, objective
Quantitative approach
deductive
Quantitative sampling
Hypothesis testing, closed-ended and specific
Quantitative data collection
measurements, questionnaires, observation structured/consistent
Quantitative data analysis
Starts with numbers, uses variables, systematic, AFTER data collection
Qualitative position of researcher
Dependent participant, subjective
Qualitative approach
Inductive
Qualitative research questions
exploratory, descriptive and open-ended
Qualitative sampling
purposive, non-probability, theoretical data saturation
Qualitative data collection
interviews, focus groups, observation, documents, images/sounds unstructured/iterative