Lab Exercise with Quizzing

Read the materials, click on the lab exercise links and take the quizzes. Please note these will open in a new window.

Lab Exercises 1 and 2: Simple Reaction Time Test (SRT) and Choice Reaction Time Test (CRT)

You will begin with the SRT and once finished, the exercise moves directly into the CRT. Perform both exercises and then complete the follow up questions and quiz.

In the first demonstration you will have a chance to do both a simple response time task (20 trials) and a choice response time task (20 trials). The purpose is to demonstrate that people respond faster to simple tasks than choice reaction time tasks. Deary-Liewald paradigm uses both a simple and a 4-choice response time task.

Follow-up exercise: Afterwards answer how you performed the task and explain how difficult it was to detect the target.

CRT is similar to Donder’s choice reaction time experiment.

Follow-up exercise: Afterwards answer how you performed the task and explain how difficult it was to detect the target. What the differences in between the simple and choice reaction time. Which one is more difficult and why?

Follow-Up Quiz

1. In SRT there is/are ______ stimuli/stimulus.

  1. 1
  2. 2
  3. 3
  4. 4

Ans: A

2. The response time for the SRT is much ______ than when there are more choices.

  1. slower
  2. complicated
  3. faster
  4. confusing

Ans: C

3. In SRT there is/are ______ responses from which to choose.

  1. 1
  2. 2
  3. 3
  4. 4

Ans: A

4. In CRT there is/are ______ responses from which to choose.

  1. 1
  2. 2
  3. 3
  4. 4

Ans: D

5. The response time for CRT is much ______ than when there is one choice.

  1. slower
  2. simpler
  3. faster
  4. about the same

Ans: A