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Parameter and argument
Term Y11 Programming Fundamentals
Definition
A parameter is a variable in the subroutine's definition that receives data; an argument is the actual value passed when the subroutine is called.
Example: 'def greet(name)' has parameter name; 'greet("Sam")' passes argument "Sam".
Found in: syllabus, course specifications, school notes, past SDD papers.
Where it is used in the test
Syllabus area: Y11 Programming Fundamentals.
Question types it can appear in
- Python: Write or complete it in the online Python tool.
- Pseudocode: Use it correctly in the exam pseudocode editor.
- Multiple choice: Pick the option that matches the definition or example.
Where it has appeared in the paper
Secure Software Architecture (Part B). Part letters follow each paper’s own layout.
Related past questions
- Sample exam Q18b (3 marks): Developing secure code (Python input validation) Secure Software Architecture (Part B) · 3 marks
These are the questions the flashcard set links to this term. Open each one and compare your answer with its marking criteria.
Study links
- Flashcard: Parameter and argument in Programming Fundamentals (Year 11) · study that set
- Memorise: Software development steps and algorithm design
How to use it in an answer
A model sentence
“A parameter is a variable in the subroutine's definition that receives data; an argument is the actual value passed when the subroutine is called.” Then apply it: 'def greet(name)' has parameter name; 'greet("Sam")' passes argument "Sam".
In a short answer, give the definition in your own words first, then tie it to the situation in the question. Do not copy the example above unless it fits the scenario.
Technique for the question types
- Python: Write code that runs: indentation, quotes, define functions before calling them, print the required output, meet every listed requirement.
- Pseudocode: Write HSC-style pseudocode: capital keywords, paired END words, indentation; initialise variables; output the required result.
- Multiple choice: Read all four options, rule out wrong ones, pick one; no penalty for guessing so never leave blank.
What the marking guidelines and feedback say
Remember to call the function in the main program after defining it, e.g. print(validate_username(input('Username: '))).
Worked answers from the marking guidelines
Sample exam Q18b (3 marks): Developing secure code (Python input validation) (3 marks): criteria and sample answer
Criteria
3: Correct function in Python to check whether a username satisfies the rules. 2: Partially correct function. 1: Some understanding of the problem and Python.
Sample answer
def validate_username(username): valid = True
# length check
if len(username) < 8:
valid = False
elif (not username[0].isupper()):
valid = False
elif (not username[-2].islower()):
valid = False
elif (not username[-1].isdigit()):
valid = False
return valid
Common mistakes
- Python questions (2025 HSC exam Q19): process string inputs; use a selection structure; code must execute in the environment; use correct indentation; call functions in the main program after defining them.
- Python questions (2025 HSC exam Q26): replicate the grid; use the random library; use selection and looping to access the list; include a method of checking the number of values; use meaningful variable names and constants; avoid overly complex structures such as nested IF loops.
- Pseudocode questions (2025 HSC exam Q17): use pseudocode control structures accurately; iterate an array and sum it; apply relational operators correctly; use the stimulus to choose the right structures.
- Use the term exactly as the syllabus words it, then link it to the scenario in the question; the 2025 feedback repeatedly rewards using the stimulus.
- Answer the command word: outline gives main points only, explain gives a reason or cause, discuss gives both sides.
Related terms
Same group in the syllabus: Computational thinking · Algorithm · Sequence · Selection · Iteration (repetition) · Divide and conquer · Backtracking · Top-down design · Bottom-up design · Abstraction · Refinement · Pseudocode · Flowchart · Subroutine (module, subprogram, procedure)