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ruff_figural_fluency_test [2019/08/30 16:08] – trynkeruff_figural_fluency_test [2026/10/20 14:40] (current) – [Table] simone
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 ====== Ruff Figural Fluency Test ====== ====== Ruff Figural Fluency Test ======
 +The Ruff Figural Fluency Test (RFFT) ([[sections|section]]: [[mental health]]) was measured in all [[start|Lifelines]] participants aged 18 years and older during:
 +  * [[1A Visit 1]] (n = ~91.000)
 +  * [[3A Visit 1]] (n = ~73.000)
 +  * [[4A Visit 1]] (currently ongoing)
 +===== Background =====
 +
 The RFFT is a measure of nonverbal fluency, a parameter of executive cognitive functioning ([[sections|section]]: [[mental health]]). The RFFT consists of five parts, each presenting a different stimulus pattern of dots, in which the task is to draw as many unique designs as possible within a set time period.  The RFFT is a measure of nonverbal fluency, a parameter of executive cognitive functioning ([[sections|section]]: [[mental health]]). The RFFT consists of five parts, each presenting a different stimulus pattern of dots, in which the task is to draw as many unique designs as possible within a set time period. 
  
-The RFFT was measured on paper in ~87,000 adult and elderly participants that underwent [[1A Visit 1]]. Participants underwent either the RFFT or [[Pulmonary function test|Spirometry]], as these tests were performed in alternate weeks.\\  +The RFFT was measured on paper in adult and elderly [[start|Lifelines]] participants during [[1A Visit 1]]. Participants underwent either the RFFT or [[Pulmonary function test|Spirometry]], as these tests were performed in alternate weeks.\\  
-In assessment [[2A Visit 1|2A]], executive cognitive functioning was measured with [[CogState]] in stead of the RFFT. In assessment [[3A Visit 1|3A]], both the RFFT and CogState will be measured.+In assessment [[2A Visit 1|2A]], executive cognitive functioning was measured with [[CogState]] instead of the RFFT.\\  
 +In assessment [[3A Visit 1|3A]] and [[4A Visit 1|4A]], both the RFFT and CogState are measured with tablet and PC.
  
 ==== Protocol RFFT on Paper ==== ==== Protocol RFFT on Paper ====
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     - the number of empty dot configurations.     - the number of empty dot configurations.
 As an index of planning efficiency, the error ratio can be calculated. The error ratio can be calculated by summing the number of unique designs and the number of perseverative errors across the five different parts, and then dividing the total number of perseverative errors by the total number of unique designs. The error ratio assesses the degree to which the respondent is able to minimize repetition while maximizing unique productions ((Ruff, R.M. (1996). Ruff Figural Fluency Test: Professional Manual. Lutz (United States): Psychological Assessment Resources, Inc.)). As an index of planning efficiency, the error ratio can be calculated. The error ratio can be calculated by summing the number of unique designs and the number of perseverative errors across the five different parts, and then dividing the total number of perseverative errors by the total number of unique designs. The error ratio assesses the degree to which the respondent is able to minimize repetition while maximizing unique productions ((Ruff, R.M. (1996). Ruff Figural Fluency Test: Professional Manual. Lutz (United States): Psychological Assessment Resources, Inc.)).
 +
 +==== Protocol RFFT on tablet ====
 +During [[3A visit 1]] and [[4A visit 1]], the RFFT was performed with a tablet with a stylus pen.\\
 +Instructions were given by a pre-recorded movie on the tablet.
 +In addition to the outcomes mentioned in the section above, outcomes on strategy and validity were added.
 +
  
 ==== Exclusion criteria ==== ==== Exclusion criteria ====
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   * The participant scores <26 on the Mini Mental State Examination.   * The participant scores <26 on the Mini Mental State Examination.
   * The participant has participated in the PREVEND study less than a month prior to his/her visit to the LifeLines facility.   * The participant has participated in the PREVEND study less than a month prior to his/her visit to the LifeLines facility.
 +
 +In [[3A visit 1]] and [[4A visit 1]], a Lifelines participant could not participate in the RFFT if her/she was not sufficiently able to use a tablet without assistence and / or had a hearing impairment.
  
 ==== Validity of the RFFT ==== ==== Validity of the RFFT ====
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 ==== Variables ==== ==== Variables ====
  
-| **English**           | **Variable**        | **Assessment**  | **Age**  | +| **Label English**                                                   | **Label Dutch**                                                     | **Code**                          | **Variable**                      | **Assessment**                                         | **Age**  | **[[IO]]**  | 
-| RFFT Type             | RFFT_TYPE           | [[1A Visit 1]]  | 18+      | +| unique designs (part 1-5)                                           | unique designs (part 1)                                             | rfft_unique_adu_m_1_01-05         | 1_rfft_unique - 5                 | [[1A Visit 1|1A]] [[3A Visit 1|3A]] [[4A Visit 1|4A]]  | 18+      |             | 
-| Unique designs        | RFFT_UNIQUE         | [[1A Visit 1]]  | 18+      | +| perseverative errors (part 1-5)                                     | perseverative errors (part 1-5)                                     | rfft_errors_adu_m_1_01-05         | 1_rfft_perseverative - 5          | [[1A Visit 1|1A]] [[3A Visit 1|3A]] [[4A Visit 1|4A]]  | 18+      |             | 
-| Perseverative errors  | RFFT_PERSEVERATIVE  | [[1A Visit 1]]  | 18+      | +| violations (part 1-5)                                               | violations (part 1-5)                                               | rfft_violations_adu_m_1_01-05     | 1_rfft_violation - 5              | [[1A Visit 1|1A]] [[3A Visit 1|3A]] [[4A Visit 1|4A]]  | 18+      |             | 
-| Violations            | RFFT_VIOLATION      | [[1A Visit 1]]  | 18+      | +| empty (part 1-5)                                                    | empty (part 1-5)                                                    | rfft_empty_adu_m_1_01-05          | 1_rfft_empty - 5                  | [[1A Visit 1|1A]] [[3A Visit 1|3A]] [[4A Visit 1|4A]]  | 18+      |             | 
-| Empty                 | RFFT_EMPTY          | [[1A Visit 1]]  | 18+      |+| strategy: starting point is next point (clockwise) (part 1)         | strategy: starting point is next point (clockwise) (part 1)         | rfft_increasestart_adu_m_1_01-05  | 1_rfft_increasestartstrategy - 5  | [[3A Visit 1|3A]] [[4A Visit 1|4A]]                    | 18+      |             | 
 +| strategy: starting point is next point (counterclockwise) (part 1)  | strategy: starting point is next point (counterclockwise) (part 1)  | rfft_decreasestart_adu_m_1_01-05  | 1_rfft_decreasestartstrategy - 5  | [[3A Visit 1|3A]] [[4A Visit 1|4A]]                    | 18+      |             | 
 +| strategy: same starting point (part 1)                              | strategy: same starting point (part 1)                              | rfft_samestart_m_1_01-05          | 1_rfft_samestartstrategy - 5      | [[3A Visit 1|3A]] [[4A Visit 1|4A]]                    | 18+      |             | 
 +| valid patterns (part 1)                                             | valid patterns (part 1)                                             | rfft_valid_adu_m_1_01-05          | 1_rfft_valid - 5                  | [[3A Visit 1|3A]] [[4A Visit 1|4A]]                    | 18+      |             | 
 +| time at the start of the rfft                                       | tijdstip start van de rfft                                          | rfft_starttime_adu_m_1            | started_at_rfft                   | [[3A Visit 1|3A]] [[4A Visit 1|4A]]                    | 18+      | X           | 
 +| time at the end of the rfft                                         | tijdstip einde van de rfft                                          | rfft_endtime_adu_m_1              | ended_at_rfft                     | [[3A Visit 1|3A]] [[4A Visit 1|4A]]                    | 18+      | X           |
  
  
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