Question Type: Labeled Magnitude Scale

Question Type: Labeled Magnitude Scale

Overview

In the Labeled Magnitude Scale (LMS) question, panelists click a point on a vertical line scale that represents their perception of the intensity of a sample attribute or characteristic within the context of the strongest sensation they can imagine.

The default scale in Compusense is anchored with the following labels/marks with their corresponding log values in brackets, from bottom to top: No Sensation (0), Barely detectable (0.14) , Weak (0.76), Moderate (1.21) , Strong (1.52) , Very strong (1.7) , and Strongest imaginable (1.98).



Question Compatibility

LMS questions are compatible with the following test types:
  1. Standard test

  2. Survey test


Add an LMS Question

  1. In the Build tab, in the left bar, locate the LMS question.
    1. To add the question to the bottom of your questionnaire, click on it.

    2. To insert the question in the middle of your existing questionnaire, drag and drop it to the spot where you wish the LMS question to appear. You can always move the question later as necessary.


  2. Update the Question name and add any required panelist instructions.

  3. Update the Attribute name for the default attribute, and update the panelist instructions if needed.

Before cloning the question or the default attribute, we recommend setting the first attribute fully up and cloning only when fully happy with it. This will help minimize amount of work if you were to update multiple questions and attributes with same changes.


Question Options

Access the Question options to review and set them as desired.

General Options

Option Description  

Question name  

The  Question name  is the label displayed for analysts in the heading of the following areas: 

  1. Question in the Build tab of your test.

  2. Analysis Reports, Graphs and Exports.

Show question name to panelists   

Click to display the  Question name  to panelists or to hide it from them. 

Display name  

Enter the text that you wish to display to the panelist if your  Question name  is of a sensitive nature and should not be visible to them. Editable only when the Show question name to panelists option is toggled to Hide .

Answer required 

The default is Yes . If an answer is not required, toggle the Answer required option to No .
Enable requestable question instructions
Provide a button for panelists to bring up additional instructions if they need them. This helps declutter the screen when panelists are fairly familiar with attributes, for example, and occasionally might need a reminder about their descriptions.


Display Options
Option Description
Show Question  
Allows you to set whether the question is not sample-related ( demographic) , or sample-related for all/selected samples.
Present question
Allows you to choose at what point in the test the question will appear. Your choices are Monadically/one sample at a time, All samples at first opportunity or All samples at last opportunity .
Show Blinding Code
Determines whether the blinding code will be shown to the panelists or not. If you are using Wildcards to display the blinding codes in the instructions, toggle this option to Hide to eliminate doubling of information and potentially confusing the panelists.
Allow side-by-side test
Select Yes  to display the question to panelists side-by-side. This feature is available only when all samples are presented on the screen. See Present question options.
Expand vertical scale
The default is Yes for the scale maximum height. If you want the LMS to appear smaller on the screen, toggle the option to No .


Attributes
Option Description
Attribute   
The order position in which the attribute is listed in the Build tab. This number cannot be modified here. To change the order of attributes, apply a design (see Presentation order design ), or move the attributes around as necessary in the Build tab.
Text 
This column displays the attribute names as the panelists will see them.
Presentation order design
The default is Fixed , which displays all the attribute in the order they are added in the Build tab. If you wish to randomize attributes, select Use a design .
Presentation order design 
By default disabled because the Presentation order design option in the list of attributes is by default set to Fixed . When that option is set to Use a design , you can select a design that best suits your attribute presentation needs. The last option, Randomized , uses automatically generated randomization which does not account for any type of balance, while all the other options are coming from the Designs library.
Shuffle attribute order
Select this option if you would like to further shuffle the design used on your attributes.
Attribute order assignment for samples within each sample set 
Select from the following options:
  1. Same order - Default selection. Panelists will see the attributes in the same order for each of their samples.

  2. Different order - Panelists will see their choices in a different order for each of their samples.

Attribute Options

Access the Attribute options to review and set them as desired. When the attribute options pane slides open, a preview screen of the scale will display on the left. For your convenience, all changes made to the attribute options will dynamically display in the scale preview screen.

General Options

Option Description  

Attribute name  

The  Attribute name  is the label displayed for analysts in the heading of the following areas: 

  1. Question in the Build tab of your test.

  2. Analysis Reports, Graphs and Exports.

Show attribute name to panelists   

Click to display the  Attribute name  to panelists or to hide it from them. 

Display name  

Enter the text that you wish to display to the panelist if your  Attribute name  is of a sensitive nature and should not be visible to them. Editable only when the Show attribute name to panelists option is toggled to Hide .

Sensitive data 

The default is No . Toggle to Yes to flag the collected results for this question as sensitive.
 
If the panelist unsubscribes or is deleted from the Panelists library by an administrator, their data collected in questions marked as sensitive will also be removed.

Data collected in questions that are not marked as sensitive will remain in your tests even after a panelist is unsubscribed/deleted.

Enable requestable question instructions
Provide a button for panelists to bring up additional instructions if they need them. This helps declutter the screen when panelists are fairly familiar with attributes, for example, and occasionally might need a reminder about their descriptions.


Text and Marks Options

Option Description  

   (Add a mark)

Click to add a mark on the scale.

  (Delete a mark)

Click to delete a selected mark.

   (Copy a mark)

Click to copy a selected mark.

Value

The logarithmic value on the scale assigned to a mark. The default lowest value is 0 and the highest value is 1.98. If you want to change the values to the non logarithmic format, you are able to do so here.
Text
Description for a mark.

Edit

Click the pencil, , next to the mark you wish to edit.


Scale Options

Option Description  

Height: (Range: 100 to 470)

Enter a value for your scale height in the range from 100 to 470 pixels. The default is 470 pixels. Changes will properly reflect on the marks (anchors).


Analysis

Click the Results tab to access and choose from the following analysis options:
  1. Graphs  - Visual representation of the data.

  2. Data  - Raw data display for each attribute.

  3. Reports  - Create new or view previously generated reports. The following reports are compatible with the LMS question type:
    1. Standard report  - Detailed information about counts, means, Standard Deviation, the p-value, statistical decision, and Multiple Comparison Test. By default, the data is analyzed in its logarithmic format, which is usually extracted by analysts from reports for graphing purposes. If you wish to see the data in non logarithmic format, you can select LMS analysis before running your report.


    2. Summary report  - A list of all attributes included in the analysis and their means. This report provides a quick way of identifying whether there is a significant difference and if yes, in which attributes it lies.

    3. Descriptive analysis workbook - Detailed analyses on product and panelist performance.

    4. PowerPoint report  - Visual representation of the data in the PowerPoint Report file format.

    5. Panelist completion time report  - Individual panelists' average completion times and overall average test completion time.

    6. Raw data export  - Choose from the Multivariate, Univariate, and Multivariate Columnar raw data export formats to suit your exporting needs.


    • Related Articles

    • Question Type: Line Scale

      Overview In the Line Scale question, panelists are presented with a horizontal or vertical line, and are asked to click a point on the line that represents their perception of the intensity of a sample attribute or characteristic. For training ...

    • Question Type: Numeric

      Overview In a Numeric question, panelists are asked to enter their responses as a number using the keyboard. The numbers can be formatted as a Date, Time, Date & Time, Currency, Percentage, Number, or General. The number of decimal places you set for ...

    • Question Type: Line Scale Wheel

      Overview The Line scale wheel is an interactive tool that can be used for flavour or aroma testing (e.g. in beverages) with trained panelists and panelists in training. The attributes are arranged in a circular form (the wheel) and panelists are ...

    • Question Type: Category

      Overview Category questions present a quantitative scale with defined values and descriptions to allow panelists to make a selection based on their perception of a sample or concept. In Compusense we have made it easier for you to add a Category ...

    • Question Type: Choose

      Overview In a Choose question, panelists are presented with a group of choices or concepts and asked to pick one choice, all choices that apply, or a specific number of choices. There are three types of Choose questions available in Compusense: ...