Task 1 - RT Flashcards
Which stages where postulated by Sternberg?
Sensory Stage
Comparison Stage
Response Stage
What are the four stages proposed by Dehaene?
- Encoding
- Comparison
- Response Selection
- Response
What is the basis of Donders’ Subtraction Paradigm?
Measuring RT in different conditions and then calculating the difference, obtaining the time of the pure mental process.
Which assumptions are made in the Subtraction Method?
- Processing is serial and successive
- The presence and sequence of all stages is known
- Pure insertion -> No interaction
Which of the two memory search concepts is supported by empirical evidence: Self-terminating or exhaustive?
Exhaustive
What does the Additive Factor Method try to find out?
How man stages there are and what they are.
What happens according to the AFM, if a task is made more difficult?
The output from these processes doesn’t differ in quality. It simply ‘comes out’ later.
What does an interaction between two factors mean, when interpreted according to the AFM?
The factors must be acting at the same cognitive stage.
When making a task more difficult in two aspects, how can you graphically examine whether these aspects affect the same stage?
If RT is graphed on aspect 1, while stratifying for aspect 2, this results in two lines. If the lines are parallel, the effects are additive and affect different cognitive processes.
What does the AFM importantly NOT assume?
Pure insertion
When doing a task, there is a speed-accuracy tradeoff. at what point on this spectrum is the theoretical definition of an individual’s speed?
At the point where maximum accuracy is achieved while being as fast as possible.
What are four ways of dealing with outliers in terms of RT?
- Using the Median instead of Mean
- Using a trimmed mean
- Constructing confidence interval
- Eliminating outliers according to a fixed criterion
What does the assumption of seriality entail for the total RT?
It should be the sum of all individual stages.
What is Random Walk?
A computational method that represents a binary decision based on information matching