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## Dataset Overview

The study examined the effec of food presentation by comparing intake of a sandwhich presented as a whole unit versus cut into pieces.

18
Variables
2
Categorical
4
Data Types

- Dataset 1988 Whole vs Parts Study
- Authors Barbara J Rolls

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## Global Missing Value Codes

These codes represent missing values across all variables:

n/a
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## Variable Definitions

id
string
Identifier

participant id - note, this was randomly generated in the de-identified data to break any linkage to identifiable information originally collected with the study

#### Appears in Files

study-wholevparts_date-1988_data.csv
cond
categorical

study condition

#### Appears in Files

study-wholevparts_date-1988_data.csv

#### Allowed Values

Value | Label | Description
--- | --- | ---
a | whole |
b | parts |

session
categorical
Identifier

study session/visit number

#### Appears in Files

study-wholevparts_date-1988_data.csv

#### Allowed Values

Value | Label | Description
--- | --- | ---
1 | 1 |
2 | 2 |

sandwhich_g
number

amount of sandwhich consumed

#### Appears in Files

study-wholevparts_date-1988_data.csv

#### Properties & Constraints

Unit of Measurement
grams
Minimum Value
86
Maximum Value
538
water_g
number

amount of water consumed

#### Appears in Files

study-wholevparts_date-1988_data.csv

#### Properties & Constraints

Unit of Measurement
grams
Minimum Value
81
Maximum Value
1101
sandwhich_kcal
number

amount of sandwhich consumed

#### Appears in Files

study-wholevparts_date-1988_data.csv

#### Properties & Constraints

Unit of Measurement
kcal
Minimum Value
207
Maximum Value
1290
taste_screen
integer

visual analog scale rating of taste during screening visit. Prompt: How pleasant is the taste of this food?, Anchors: Not at all, Extremely pleaant

#### Appears in Files

study-wholevparts_date-1988_data.csv

#### Properties & Constraints

Unit of Measurement
milimeters
Minimum Value
0
Maximum Value
100
desire_eat_screen
integer

visual analog scale rating of desire to eat during screening visit. Prompt: How strong is your desire to eat this food?, Anchors: Not at all, Extremely strong

#### Appears in Files

study-wholevparts_date-1988_data.csv

#### Properties & Constraints

Unit of Measurement
milimeters
Minimum Value
0
Maximum Value
100
hunger_pre
integer

visual analog scale rating of hungerer prior to sandwhich meal

#### Appears in Files

study-wholevparts_date-1988_data.csv

#### Properties & Constraints

Unit of Measurement
milimeters
Minimum Value
0
Maximum Value
100
thirst_pre
integer

visual analog scale rating of thirst prior to sandwhich meal

#### Appears in Files

study-wholevparts_date-1988_data.csv

#### Properties & Constraints

Unit of Measurement
milimeters
Minimum Value
0
Maximum Value
100
fullness_pre
integer

visual analog scale rating of fullnessness prior to sandwhich meal

#### Appears in Files

study-wholevparts_date-1988_data.csv

#### Properties & Constraints

Unit of Measurement
milimeters
Minimum Value
0
Maximum Value
100
desire_eat_pre
integer

visual analog scale rating of desire to eat prior to sandwhich meal. Prompt: How strong is your desire to eat this food?, Anchors: Not at all, Extremely strong

#### Appears in Files

study-wholevparts_date-1988_data.csv

#### Properties & Constraints

Unit of Measurement
milimeters
Minimum Value
0
Maximum Value
100
much_eat_pre
integer

visual analog scale rating of prospective consumption prior to sandwhich meal

#### Appears in Files

study-wholevparts_date-1988_data.csv

#### Properties & Constraints

Unit of Measurement
milimeters
Minimum Value
0
Maximum Value
100
hunger_post
integer

visual analog scale rating of hungerer after sandwhich meal

#### Appears in Files

study-wholevparts_date-1988_data.csv

#### Properties & Constraints

Unit of Measurement
milimeters
Minimum Value
0
Maximum Value
100
thirst_post
integer

visual analog scale rating of thirst after sandwhich meal

#### Appears in Files

study-wholevparts_date-1988_data.csv

#### Properties & Constraints

Unit of Measurement
milimeters
Minimum Value
0
Maximum Value
100
fullness_post
integer

visual analog scale rating of fullnessness after sandwhich meal

#### Appears in Files

study-wholevparts_date-1988_data.csv

#### Properties & Constraints

Unit of Measurement
milimeters
Minimum Value
0
Maximum Value
100
desire_eat_post
integer

visual analog scale rating of desire to eat after sandwhich meal. Prompt: How strong is your desire to eat this food?, Anchors: Not at all, Extremely strong

#### Appears in Files

study-wholevparts_date-1988_data.csv

#### Properties & Constraints

Unit of Measurement
milimeters
Minimum Value
0
Maximum Value
100
much_eat_post
integer

visual analog scale rating of prospective consumption after sandwhich meal

#### Appears in Files

study-wholevparts_date-1988_data.csv

#### Properties & Constraints

Unit of Measurement
milimeters
Minimum Value
0
Maximum Value
100