Class: StudyDesign

The design of the study; how participants were assigned, what they were assigned to, and the occasions on which data were collected. The arms and timepoints it holds are referenced by identifier from Condition and Group.

URI: neurostudy:StudyDesign

 classDiagram
    class StudyDesign
    click StudyDesign href "../StudyDesign/"
      StudyDesign : allocation

      StudyDesign : arms





        StudyDesign --> "*" Arm : arms
        click Arm href "../Arm/"



      StudyDesign : assignment_structure

      StudyDesign : blinding

      StudyDesign : description

      StudyDesign : timepoints





        StudyDesign --> "*" Timepoint : timepoints
        click Timepoint href "../Timepoint/"

Slots

Name	Cardinality and Range	Description	Inheritance
description	0..1 String	Overall study design in narrative form, including observational or interventi...	direct
allocation	0..1 String or  Allocation	How participants came to be in the arm they were in	direct
assignment_structure	0..1 String or  AssignmentStructure	How the compared cohorts came about	direct
blinding	0..1 String or  Blinding	Who was kept unaware of the assignment	direct
arms	* Arm	The arms of the study, active and comparator alike	direct
timepoints	* Timepoint	The occasions on which data were collected	direct

Usages

used by	used in	type	used
Study	design	range	StudyDesign

Identifier and Mapping Information

Schema Source

• from schema: https://neurostuff.org/schemas/neuroimaging-study-storage

Mappings

Mapping Type	Mapped Value
self	neurostudy:StudyDesign
native	neurostudy:StudyDesign

LinkML Source

Direct

name: StudyDesign
description: The design of the study; how participants were assigned, what they were
  assigned to, and the occasions on which data were collected. The arms and timepoints
  it holds are referenced by identifier from Condition and Group.
from_schema: https://neurostuff.org/schemas/neuroimaging-study-storage
rank: 1000
attributes:
  description:
    name: description
    description: Overall study design in narrative form, including observational or
      interventional status, cross-sectional or longitudinal structure, allocation,
      and blinding when applicable.
    in_subset:
    - mvp
    - model_extracted
    from_schema: https://neurostuff.org/schemas/neuroimaging-study-storage/design
    rank: 1000
    domain_of:
    - StudyDesign
    - Arm
    - Group
    - Task
    - Condition
    - Assessment
    - Region
    - Preprocessing
    - StatisticalMap
    - Table
    - CoordinateSet
    - Study
    range: string
  allocation:
    name: allocation
    description: 'How participants came to be in the arm they were in.

      Its own vocabulary, and not its neighbour''s. A study with no arms takes `not_applicable`
      here -- "nothing was administered, so allocation does not apply" -- and says
      `observational_cohorts` in `assignment_structure`. Writing `observational_cohorts`
      into this slot was measured on 4 of 5 freshly extracted observational papers:
      the value is accepted, because the vocabulary is open, and it answers a different
      question than the one asked. This slot is the only record of whether anything
      was administered at all.'
    in_subset:
    - mvp
    - model_extracted
    from_schema: https://neurostuff.org/schemas/neuroimaging-study-storage/design
    rank: 1000
    domain_of:
    - StudyDesign
    any_of:
    - range: Allocation
    - range: string
  assignment_structure:
    name: assignment_structure
    description: 'How the compared cohorts came about. Ask first whether anything
      was *administered or assigned* at all: where nothing was, the answer is `observational_cohorts`
      and the study has no arms. Only where something was does the rest of the question
      apply -- separate cohorts, or the same participants passing through several
      arms -- and that is what says whether an arm reference belongs on a Group or
      a Condition.'
    in_subset:
    - mvp
    - model_extracted
    from_schema: https://neurostuff.org/schemas/neuroimaging-study-storage/design
    rank: 1000
    domain_of:
    - StudyDesign
    any_of:
    - range: AssignmentStructure
    - range: string
  blinding:
    name: blinding
    description: Who was kept unaware of the assignment.
    in_subset:
    - model_extracted
    from_schema: https://neurostuff.org/schemas/neuroimaging-study-storage/design
    rank: 1000
    domain_of:
    - StudyDesign
    any_of:
    - range: Blinding
    - range: string
  arms:
    name: arms
    description: The arms of the study, active and comparator alike. Every reference
      to an Arm elsewhere is by identifier, so this list holds the records themselves.
    in_subset:
    - mvp
    - model_extracted
    from_schema: https://neurostuff.org/schemas/neuroimaging-study-storage/design
    rank: 1000
    domain_of:
    - StudyDesign
    - FactorLevel
    range: Arm
    multivalued: true
    inlined_as_list: true
  timepoints:
    name: timepoints
    description: The occasions on which data were collected.
    in_subset:
    - mvp
    - model_extracted
    from_schema: https://neurostuff.org/schemas/neuroimaging-study-storage/design
    rank: 1000
    domain_of:
    - StudyDesign
    - FactorLevel
    range: Timepoint
    multivalued: true
    inlined_as_list: true

Induced

name: StudyDesign
description: The design of the study; how participants were assigned, what they were
  assigned to, and the occasions on which data were collected. The arms and timepoints
  it holds are referenced by identifier from Condition and Group.
from_schema: https://neurostuff.org/schemas/neuroimaging-study-storage
rank: 1000
attributes:
  description:
    name: description
    description: Overall study design in narrative form, including observational or
      interventional status, cross-sectional or longitudinal structure, allocation,
      and blinding when applicable.
    in_subset:
    - mvp
    - model_extracted
    from_schema: https://neurostuff.org/schemas/neuroimaging-study-storage/design
    rank: 1000
    owner: StudyDesign
    domain_of:
    - StudyDesign
    - Arm
    - Group
    - Task
    - Condition
    - Assessment
    - Region
    - Preprocessing
    - StatisticalMap
    - Table
    - CoordinateSet
    - Study
    range: string
  allocation:
    name: allocation
    description: 'How participants came to be in the arm they were in.

      Its own vocabulary, and not its neighbour''s. A study with no arms takes `not_applicable`
      here -- "nothing was administered, so allocation does not apply" -- and says
      `observational_cohorts` in `assignment_structure`. Writing `observational_cohorts`
      into this slot was measured on 4 of 5 freshly extracted observational papers:
      the value is accepted, because the vocabulary is open, and it answers a different
      question than the one asked. This slot is the only record of whether anything
      was administered at all.'
    in_subset:
    - mvp
    - model_extracted
    from_schema: https://neurostuff.org/schemas/neuroimaging-study-storage/design
    rank: 1000
    owner: StudyDesign
    domain_of:
    - StudyDesign
    range: string
    any_of:
    - range: Allocation
    - range: string
  assignment_structure:
    name: assignment_structure
    description: 'How the compared cohorts came about. Ask first whether anything
      was *administered or assigned* at all: where nothing was, the answer is `observational_cohorts`
      and the study has no arms. Only where something was does the rest of the question
      apply -- separate cohorts, or the same participants passing through several
      arms -- and that is what says whether an arm reference belongs on a Group or
      a Condition.'
    in_subset:
    - mvp
    - model_extracted
    from_schema: https://neurostuff.org/schemas/neuroimaging-study-storage/design
    rank: 1000
    owner: StudyDesign
    domain_of:
    - StudyDesign
    range: string
    any_of:
    - range: AssignmentStructure
    - range: string
  blinding:
    name: blinding
    description: Who was kept unaware of the assignment.
    in_subset:
    - model_extracted
    from_schema: https://neurostuff.org/schemas/neuroimaging-study-storage/design
    rank: 1000
    owner: StudyDesign
    domain_of:
    - StudyDesign
    range: string
    any_of:
    - range: Blinding
    - range: string
  arms:
    name: arms
    description: The arms of the study, active and comparator alike. Every reference
      to an Arm elsewhere is by identifier, so this list holds the records themselves.
    in_subset:
    - mvp
    - model_extracted
    from_schema: https://neurostuff.org/schemas/neuroimaging-study-storage/design
    rank: 1000
    owner: StudyDesign
    domain_of:
    - StudyDesign
    - FactorLevel
    range: Arm
    multivalued: true
    inlined: true
    inlined_as_list: true
  timepoints:
    name: timepoints
    description: The occasions on which data were collected.
    in_subset:
    - mvp
    - model_extracted
    from_schema: https://neurostuff.org/schemas/neuroimaging-study-storage/design
    rank: 1000
    owner: StudyDesign
    domain_of:
    - StudyDesign
    - FactorLevel
    range: Timepoint
    multivalued: true
    inlined: true
    inlined_as_list: true