Display the instructions in the command window

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Reference no: EM133135114

This script will run a free-association exercise that works as follows: A series of words is presented, and after each presented word the subject responds as quickly as possible by typing the first word that comes to mind.

Begin your script with the following:

• Opening comments.
• Clear the variables from the workspace.
• Clear the command window.
• Shuffle the random number generator.

In the PREPARE WORD-PROMPTS section:

• Import the provided csv file (free association word list.csv) into a table called wordTable. There will be two columns in the table: Word (a list of words) and IsAdjective (0 indicating the given word is not an adjective, or 1 indicating the given word is an adjective).

• Define numPrompts as 10, representing the number of word-prompts that will be used in the exercise. DO NOT HARD-CODE THE NUMBER 10 ANYWHERE ELSE IN THE PROGRAM.

• Define prompts as either a 2 x 5 string array or a 2 x 5 cell array of character vectors. Row 1 should contain 5 randomly selected non-adjectives from the table in a random order, and row 2 should contain 5 randomly selected adjectives from the table. Instead of hard-coding the number 5, use numPrompts/2 so your program will still work if other even values of numPrompts are used. IMPORTANT: Make sure the selected words are randomly selected from the list; don't just choose the fist 5 of each type; every word in the list should have a chance of being selected. If you wish, before randomly selecting the words, you may extract all the words from the table into two vectors (a vector of all the non-adjectives and a vector of all the adjectives).

In the FREE-ASSOCIATION EXERCISE section:

• Initialize a cell column-vector called responses to hold the subject's responses.

• Initialize a numeric column-vector (using NaN values) called responseSecs to hold the subject's response times (i.e., the number of seconds the subject takes to complete each response).

• Display the following instructions in the command window:

EXERCISE

After each presented word, type the first word that comes to mind in response.
Type your answer as quickly as possible without thinking about it, and then press Return. Press any key to begin.
• Use a for-loop to present the words in the prompts matrix one at a time, collecting a response to each. Alternate between non-adjectives and adjectives (i.e., the first word should be a non-adjective,
the second word should be an adjective, the third word should be a non-adjective, the fourth word should be an adjective, and so on). HINT: Use linear indexing to efficiently alternate between rows of the prompts matrix.

• Clear the command window before presenting each prompt.

• Put a line-break at the end of each prompt to ensure that the user's response is typed on the line below the prompt.

• For each prompt, if the response is empty (i.e., if the user just presses Return without entering anything), repeat the same prompt until a nonempty response is given.

• For each prompt, if the response is ‘abort exercise' (with any capitalization), print Exercise aborted. in the command window, and end the program immediately.

• Record the number of seconds it takes the subject to complete their response to each prompt. If you're using Matlab remotely, the response time might not be recorded correctly, due to lags in the registering of key-presses.

In the REPORT section:

• Define resultsTable as a table with the following 3 columns: Prompt (the prompts in the order they were presented), Response (the corresponding responses to the prompts), Seconds (the corresponding response times in seconds).

• Clear the command window, and then display resultTable in the command window using the disp function.

• Below the table, print
Exercise complete!
in the command window.

In the SAVE section:

• Save prompts, responses, and responseSecs to a file called psych20ahw5data.mat

• Export resultsTable to a file called psych20ahw5results.csv

Attachment:- Matlab script.rar

Reference no: EM133135114

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