This shows you the differences between two versions of the page.
Both sides previous revisionPrevious revision | Next revisionBoth sides next revision | ||
en:results:variables [29.03.2017 07:31] – [Dwell Times] cofrin | en:results:variables [15.11.2017 08:59] – Update to German version's contents admin | ||
---|---|---|---|
Line 33: | Line 33: | ||
===== Dwell Times ===== | ===== Dwell Times ===== | ||
- | |||
- | **Note:** The handling times for each page are available if the option //Download the time spent per page// has been selected in variable selection. | ||
- | |||
- | **Note:** If using '' | ||
* **TIMEnnn** The variables '' | * **TIMEnnn** The variables '' | ||
Line 42: | Line 38: | ||
* they are longer than 2 hours or | * they are longer than 2 hours or | ||
* they exceed the page's dwell time media by more than 3 inter quartile ranges (IQR) divided by 1.34 (equals more than 3 standard deviations in a normally distributed sample) | * they exceed the page's dwell time media by more than 3 inter quartile ranges (IQR) divided by 1.34 (equals more than 3 standard deviations in a normally distributed sample) | ||
+ | * **TIME_RSI** An index that indicates how much faster a participant has completed the questionnaire than the typical participant (median) has done. Values above 1 identify faster respondents, | ||
+ | |||
+ | **Note:** The response times are only included in the data set if the option to download the dwell times has been checked the // | ||
+ | |||
+ | **Note:** Processing times are recorded automatically. To deactivate the recording, please uncheck the option in **Survey Project** → **Project Settings** → tab //Privacy// → //record time and duration during the survey//. | ||
+ | |||
===== Quality Indicators ===== | ===== Quality Indicators ===== | ||
Line 53: | Line 55: | ||
* When using [[: | * When using [[: | ||
* **MISSREL** Percentage of missing answers weighted by the other participants answering behavior. Questions that are rarely answered (e.g., voluntary text questions) are mostly irrelevant for this value, questions that most participants have answered weight worse. The linear weighting factor for a question/ | * **MISSREL** Percentage of missing answers weighted by the other participants answering behavior. Questions that are rarely answered (e.g., voluntary text questions) are mostly irrelevant for this value, questions that most participants have answered weight worse. The linear weighting factor for a question/ | ||
- | * **DEG_TIME** Negative points for extremely fast completion. This value is normed in such way that values of more than 100 points indicate low-quality data. Data quality, however, is no dichotomous attribute. If you prefer a more strict filtering, a threshold of 75 or even 50 points may as well be useful as a threshold of 200 for more liberal filtering. | + | * **DEG_TIME** Negative points for extremely fast completion. This value is normed in such way that values of more than 100 points indicate low-quality data. Data quality, however, is no dichotomous attribute. If you prefer a more strict filtering, a threshold of 75 or even 50 points may as well be useful as a threshold of 200 for more liberal filtering. |
- | + | * **TIME_RSI** This parameter is documented in more detail in the article [[https://www.researchgate.net/publication/258997762|Too Fast, too Straight, too Weird]] (as " | |
- | //LASTPAGE// and //FINISHED// show if the participant | + | |
+ | Whether a questionnaire has been completed in its entirety can be determined using the variables | ||
- | A detailed documentation on the indicators calculation is currently available in German, only: | ||
- | [[http:// | ||
- | Note, that the quality indicators DEG_TIME and DEG_MISS have proven non-optimal during further research (especially their mean DEGRADE). In future, a more elaborate quality indicator, as described in this working paper, shall become available in SoSci Survey: [[https:// | ||
===== External Information ===== | ===== External Information ===== | ||