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This tab - - is where you create the selection criteria expression that is the overall filter for the panelists. You can select criteria from the list and assemble them using the operators and functions, or if you have the required knowledge you can write the expression directly into the data field. Click on the various tabs in the figure below for further details.
Figure 1 - Example of the Universal Criteria tab
Data Fields
- Search – type a character or string of characters into the Search field. As you type, Forsta Plus reduces the criteria list to show only those criteria that include that character or series somewhere in the criteria name.
- The Operators:
- And – a conjunction operator to be used when more than one criteria must be satisfied. For example, the panelist must be male and must be married.
- Or – a conjunction operator to be used when one or more criteria must be satisfied. For example, the panelist must have network access from home or from work.
- None – this is not a conjunction operator. Use when adding the first criteria in the expression.
- Not – the negative operator. Use for example when you want panelists who are not in banking though any other profession is acceptable.
- The Functions (these will be active depending on the criteria selected):
- Equal – use when you want the selected criteria to be equal to a specific value, for example when you want panelists of a specific age or you want the criteria to be Yes or No.
- In – use when the criteria value is to be one of a range or set of values.
- Between – use when you want the criteria to be between two values, for example between two dates.
- > (Greater than) - use when the criteria is to be greater than a specified value.
- >= (Greater than or equal to) - use when the criteria is to be greater than or equal to a specified value.
- < (Less than) – use when the criteria is to be less than a specified value.
- <= (Less than or equal to) – use when the criteria is to be less than or equal to a specified value.
- Contains – you can write an expression that looks, for example, for a certain combination of four characters anywhere in a line of text.
- Left – you can write an expression that looks, for example, for the first three characters in a line of text. In this case select Left as the desired string is to be on the left end of the line.
- Right – you can write an expression that looks, for example, for the last three characters in a line of text. In this case select Right as the desired string is to be on the right end of the line.
- IsNull - you can write an expression that looks for any null-codes in multi questions; i.e. answer options that have not been selected.
- Any - you can write an expression that looks for instances where any of a specified set of codes are present.
- All - you can write an expression that looks for any instances where all of a specified set of codes are present.
- Other data fields
- Text area – type text as required into this field. The field is only accessible for certain pre-defined criteria.
- Paste area – here you can paste in, for example, a list of values copied from a document.
- Number – here you can type in numerical characters only. Use in conjunction with a Function (see above) when, for example, you want a criteria to have a specific numerical value. The field is only accessible for certain pre-defined criteria.
- End Number – when the Number field is open, if you also select the Between function, a second numerical data field appears. This enables you to input a second number such that you can specify the criteria must have a value between the two given numbers.