Numeric Answers

Numeric Answers

This page is still under construction.

Key Considerations

  • Numeric answers are used when a respondent must provide a number to answer to a question.

  • Where a numeric answer requires a unit or other qualifying information, it should be added as a text answer. For example, ‘Give your height in centimeters’ is a number, whereas ‘Give your height’ is a text answer as the unit needs to be specified in the answer.

  • They are either an Integer or Float numeric type. Integers are whole numbers only. Floats allow a decimal place.

  • For most numeric responses a generic answer labelled ‘How many’ is used.

  • Formats, minimums and maximums matter so ‘Number (Integer, Min: 0, Max: 10)’ is not the same as either ‘Number (Float, Min: 0, Max: 10)’ or ‘Number (Integer, Min: 0, Max: 20)’.

Numeric answers are used when the response to a question is a number. A numeric answer consists of a Label, Type, Numeric type and Min (Minimum) and Max (Maximum) values.

Archivist Build / Response Domain (Numeric Answer):

The numeric type is entered as either 'Integer' or 'Float'. Which type is chosen depends on the format of the response in the questionnaire. The numeric type ‘Float’ is used only if the response in the question contains a decimal point or requires a fraction (see examples). Min and Max values are always entered as whole numbers, regardless of the values indicated in the questionnaire.

For most numeric responses a generic answer labelled ‘How many’ is used, with a Numeric type of Integer and a Min value of 0 with the Max value left blank.

Archivist Build / Response Domain (How many):

If an Integer and a Float numeric type answer are needed for the same numeric response in a questionnaire, separate response domains are made for each numeric type, adding ‘I’ for integer and ‘F’ for float to the label. In the example below, the questionnaire contains questions with a ‘How many’ response with and without a decimal point.

Questionnaire: SWS Initial Questionnaire

Questionnaire layout:

The ‘How many’ response to question 7.4b contains a decimal point, while the response to 8.4 does not. Two ‘How many’ numeric answers are created, one with a numeric type of Integer and one with a numeric type of Float.

Archivist Build / Response Domain:

How many Integer answer
How many Float answer

Archivist view (sws_1_bio):

Numeric answers with specific labels

 There are several types of numeric answers which are specifically labelled:

Note: Specifically labelled answers are not created for distance (i.e. miles), single unit time responses with no defined min or max in the documentation (i.e. hours only, minutes only), and measurements without a defined length or size (i.e. days, nights, slices, cups, mugs, etc.). These are all entered as a 'How many' response domain.

Age-related numeric answers

 Answers to ‘How old’ questions are entered as follows:

Label

Type

Numeric type

Min

Max

Usage

Age

Numeric

Integer

0

Blank

How old in years only or year component of question asking age in years and months. See example.    

Age in months

Numeric

Integer

0

Blank

How old with response in months only or month component of question asking age in months and weeks. Commonly seen in questionnaires for birth and pre-school life stages asking how old baby is with response expressed in months rather than years. See example.

Months

Numeric

Integer

0

11

How old with response in years and months. Answer is compound response with ‘Age’ for years response domain and ‘Months’ for months response domain. See example.

Weeks

Numeric

Integer

0

4

How old with response in months and weeks. Answer is compound response with 'Age in months' for months response domain and 'Weeks' for weeks response domain

Measurements

Physical measurement responses with a defined length or size are input as labelled numeric answers regardless of whether the question response contains a single measurement (inches, cm, mm, kilos) or a compound measurement (… lbs … oz; … stones … lbs; … ft … in). The answer label for the measurement unit should be fully spelled out regardless of how it is written in the questionnaire.

When the answer is the second measurement in a compound response, the label is entered as ‘[X] in [Y]’, where [X] is the second part of the measurement and [Y] is first part. So for a response ‘… lbs … oz’ the label for the ‘oz’ numeric answer is ‘Ounces in pound’, with a Min of 0 and Max of 15 (for an integer response) or 16 (for a float response). For the response ‘… stones … lbs’ the label for the ‘lbs’ numeric answer is ‘Pounds in stone’, with a Min of 0 and Max of 13 (for an integer response) or 14 (for a float response).

Responses for medical measurements, e.g. blood pressure, peak expiratory flow rate, are labelled using the unit of measure recorded for the medical check, not the procedure itself. The numeric response for blood pressure is labelled Millimetres and does not need to be distinguished from Millimetres used as a physical measurement. The label for peak expiratory flow rate, used to assess lung capacity, is Litres per minute.

Temperature, whether of a person or a room, is input as a numeric answer only if the question specifies whether the response is in Celsius or Fahrenheit. The numeric response is labelled either Celsius or Fahrenheit depending on the unit indicated in the question. If a question regarding temperature does not specify a unit of measurement, the answer is input as a text response labelled Temperature. See discussion of insufficiently defined numeric responses in Text answers section.

Common measurement answers:

Label

Type

Numeric type

Min

Max

Used for question text response

Feet

Numeric

Integer or Float

0

Blank

Measurement response in feet only. Also used as feet component of question asking height measurement in feet and inches. See example  .

Inches

Numeric

Integer or Float

0

Blank

Measurement response in inches only. See example.

Metres

Numeric

Integer or float

0

Blank

Measurement response in metres only. 

Centimetres

Numeric

Integer or Float

0

Blank

Measurement response in centimetres only. See Integer example and Float example.

Millimetres

Numeric

Integer or Float

0

Blank

Measurement response in millimetres only. See Integer example and Float example of physical measurement. Also used for as answer in questions recording blood pressure.

Pounds

Numeric

Integer or Float

0

Blank

Measurement response in pounds only. Also used as pound component of question asking weight measurement in pounds and ounces. See Pounds only example and Pounds/Ounces example.  

Stones

Numeric

Integer

0

Blank

Measurement response in stones only. Also used as stones component of question asking weight measurement in stones and pounds. See example.

Kilograms

Numeric

Integer or Float

0

Blank

Measurement response in kilograms only. Also used as kilogram component of question asking weight measurement in kilograms and grams. See Integer example and Float example.

Grams

Numeric

Integer or Float

0

Blank

Measurement response in grams only. The same numeric answer may also be used as a quantity answer. See example.

Ounces

Numeric

Integer or Float

0

Blank

Measurement response in ounces only. The same numeric answer may also be used as a quantity measurement answer for volume in ounces only.

Inches in foot

Numeric

Integer

0

11

Inches component of height measurement in feet and inches. Response is whole number. See example.  

Inches in foot

Numeric

Float

0

12

Inches component of height measurement in feet and inches. Response contains decimal point or a fraction. See example.

Ounces in pound

Numeric

Integer

0

15

Ounces component of weight measurement in pounds and ounces. Response is whole number.

Ounces in pound

Numeric

Float

0

16

Ounces component of weight measurement in pounds and ounces. Response contains decimal point or a fraction. See example.  

Pounds in stone

Numeric

Integer

0

13

Pounds component of weight measurement in stones and pounds. Response is whole number. See example.

Pounds  in stone

Numeric

Float

0

14

Pounds component of weight measurement in stones and pounds. Response contains decimal point or a fraction.

Grams in Kilogram

Numeric

Integer

0

999

Grams component of weight measurement in kilograms and grams. Response is whole number.

Grams in Kilogram

Numeric

Float

0

1000

Grams component of weight measurement in kilograms and grams. Response contains decimal point.

Litres per minute

Numeric

Integer

0

Blank

Measurement of peak expiratory flow rate (lung capacity).

Celsius

Numeric

Integer or Float

0

Blank

Temperature measurement is specified as Celsius.

Fahrenheit

Numeric

Integer or Float

0

Blank

Temperature measurement is specified as Fahrenheit.

FEV

Numeric

 Integer or Float

0

Blank

Respiratory measurement is specified as FEV.

PEFR

Numeric

 Integer or Float

0

Blank

Respiratory measurement is specified as PEFR.

FVC

Numeric

Integer or Float

0

Blank

Respiratory measurement is specified as FVC.

Quantities

Quantities which have a precise unit of measurement are entered as specifically labelled numeric answers. Tablespoons, teaspoons, fluid ounces (fl.ozs), centilitres (cls), millilitres (mls), and grams are examples of quantity responses that are entered as labelled numeric answers. Responses asking average amount per serving, no of cups/mugs of tea/coffee (see example ), glasses, spoons, slices, scoops, bananas, eggs, etc., where the serving size is variable (see example), are not entered as specifically labelled numeric answers. ‘How many’ is used as the answer for these types of quantities.

Common quantity answers:

Label

Type

Numeric type

Min

Max

Used for question text response

Tablespoons

Numeric

Integer or Float

0

Blank

Quantity response expressed in number of tablespoons. Commonly found in Food Diary questions. See example.

Teaspoons

Numeric

Integer or Float

0

Blank

Quantity response expressed in number of teaspoons. Commonly found in Food Diary questions.

Fluid ounces

Numeric

Integer or Float

0

Blank

Quantity response measuring size of container, i.e., cup, mug or amount of liquid. See example  .