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Berlin Numeracy Test (BNT)

0 Shared Subjects

The Berlin Numeracy Test (BNT) is designed to quickly assess statistical numeracy and risk literacy. For versatility, there are a total of four items and four versions: a computer-adaptive version that asks 2-3 questions based on whether the previous was answered correctly, a paper-and-pen version that scores all items, a single-item format, and a multiple-choice format. http://dx.doi.org/10.1017/S1930297500001819
Clinical Assessments
IQ
05/05/2023
numeracy01
05/08/2023
View Change History
01
Definition
Submission Template
Query Element Name Data Type Size Required Description Value Range Notes Aliases
subjectkey GUID Required The NDAR Global Unique Identifier (GUID) for research subject NDAR*
src_subject_id String 20 Required Subject ID how it's defined in lab/project
interview_date Date Required Date on which the interview/genetic test/sampling/imaging/biospecimen was completed. MM/DD/YYYY
interview_age Integer Required Age in months at the time of the interview/test/sampling/imaging. 0::1440 Age is rounded to chronological month. If the research participant is 15-days-old at time of interview, the appropriate value would be 0 months. If the participant is 16-days-old, the value would be 1 month.
sex String 20 Required Sex of subject at birth M;F; O; NR M = Male; F = Female; O=Other; NR = Not reported
bnt_choir String 20 Recommended Out of 1,000 people in a small town 500 are members of a choir. Out of these 500 members in the choir 100 are men. Out of the 500 inhabitants that are not in the choir 300 are men. What is the probability that a randomly drawn man is a member of the choir? Please indicate the probability in percent. Correct answer: 25% bnt_adaptive1, bnt_paper2, bnt_single
bnt_5die String 20 Recommended Imagine we are throwing a five-sided die 50 times. On average, out of these 50 throws how many times would this five-sided die show an odd number (1, 3 or 5)? Correct answer: 30 out of 50 throws bnt_adaptive2a, bnt_paper1
bnt_6die String 20 Recommended Imagine we are throwing a loaded die (6 sides). The probability that the die shows a 6 is twice as high as the probability of each of the other numbers. On average, out of these 70 throws how many times would the die show the number 6? Correct answer: 20 out of 70 throws bnt_adaptive2b, bnt_paper3
bnt_mushroom String 20 Recommended In a forest 20% of mushrooms are red, 50% brown and 30% white. A red mushroom is poisonous with a probability of 20%. A mushroom that is not red is poisonous with a probability of 5%. What is the probability that a poisonous mushroom in the forest is red? Correct answer: 50% bnt_adaptive3, bnt_paper4
bnt_adaptive_score Integer Recommended Total Score - Berlin Numeracy Test, Computer Adaptive Test form, 2-3 items 1::4 1= Q1 incorrect, Q2a incorrect; 2= Q1 incorrect, Q2a correct; 3= Q1 correct, Q2b incorrect, Q3 incorrect; 4= Q1 correct, Q2b incorrect and Q3 correct OR Q2b correct
bnt_paper_score Integer Recommended Total Score - Berlin Numeracy Test, Paper and Pencil format, 4 items 0::4 Number of correct items
bnt_single_score Integer Recommended Total Score - Berlin Numeracy Test, Single item format 0::1 Number of correct items
bnt_choir_mult Integer Recommended Imagine we are throwing a five-sided die 50 times. On average, out of these 50 throws how many times would this five-sided die show an odd number (1, 3 or 5)? 1::4 1= a) 5 out of 50 throws; 2= b) 25 out of 50 throws; 3= c) 30 out of 50 throws (correct); 4= d) None of the above
bnt_5die_mult Integer Recommended Out of 1,000 people in a small town 500 are members of a choir. Out of these 500 members in the choir 100 are men. Out of the 500 inhabitants that are not in the choir 300 are men. What is the probability that a randomly drawn man is a member of the choir? Please indicate the probability in percent. 1::4 1= a) 10%; 2= b) 25% (correct); 3= c) 40%; 4= d) None of the above
bnt_6die_mult Integer Recommended Imagine we are throwing a loaded die (6 sides). The probability that the die shows a 6 is twice as high as the probability of each of the other numbers. On average, out of these 70 throws how many times would the die show the number 6? 1::4 1= a) 20 out of 50 throws (correct); 2= b) 23 out of 50 throws; 3= c) 35 out of 50 throws; 4= d) None of the above
bnt_mushroom_mult Integer Recommended In a forest 20% of mushrooms are red, 50% brown and 30% white. A red mushroom is poisonous with a probability of 20%. A mushroom that is not red is poisonous with a probability of 5%. What is the probability that a poisonous mushroom in the forest is red? 1::4 1= a) 4%; 2= b) 20%; 3= c) 50% (correct); 4= d) None of the above
bnt_mult_score Integer Recommended Total Score - Berlin Numeracy Test, Multiple Choice format, 4 items 0::4 Number of correct items
numeracy_q1_date Date Recommended Date on which the first numeracy question was completed (if different then Interview_date). MM/DD/YYYY Intended to deal with a survey that included one question on a different session
Data Structure

This page displays the data structure defined for the measure identified in the title and structure short name. The table below displays a list of data elements in this structure (also called variables) and the following information:

  • Element Name: This is the standard element name
  • Data Type: Which type of data this element is, e.g. String, Float, File location.
  • Size: If applicable, the character limit of this element
  • Required: This column displays whether the element is Required for valid submissions, Recommended for valid submissions, Conditional on other elements, or Optional
  • Description: A basic description
  • Value Range: Which values can appear validly in this element (case sensitive for strings)
  • Notes: Expanded description or notes on coding of values
  • Aliases: A list of currently supported Aliases (alternate element names)
  • For valid elements with shared data, on the far left is a Filter button you can use to view a summary of shared data for that element and apply a query filter to your Cart based on selected value ranges

At the top of this page you can also:

  • Use the search bar to filter the elements displayed. This will not filter on the Size of Required columns
  • Download a copy of this definition in CSV format
  • Download a blank CSV submission template prepopulated with the correct structure header rows ready to fill with subject records and upload

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