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  3. University Of South Africa (Unisa)
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  5. Human-Computer Interaction II (INF3720)

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INF3720 EXAM PACK 2025 - DISTINCTION GUARANTEED

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Well-structured INF3720 EXAM PREPARATION PACK - DISTINCTION GUARANTEED. Contains recent exam questions and answers, and Summarised study notes. All you need to pass the 2025 EXAMS

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  • January 22, 2025
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  • 2024/2025
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INF3720
EXAM PACK
 Recent exam questions and answers

 Summarised study notes

 Exam tips and guidelines


+27 81 278 3372
DISCLAIMER & TERMS OF USE
1. Educational Aid: These study notes are designed to serve as educational aids and should not be considered as a
substitute for individual research, critical thinking, or professional guidance. Students are encouraged to
conduct their own extensive research and consult with their instructors or academic advisors for specific
assignment requirements.
2. Personal Responsibility: While every effort has been made to ensure the accuracy and reliability of the
information provided in these study notes, the seller cannot guarantee the completeness or correctness of all
the content. It is the responsibility of the buyer to verify the accuracy of the information and use their own
judgment when applying it to their assignments.
3. Academic Integrity: It is crucial for students to uphold academic integrity and adhere to their institution's
policies and guidelines regarding plagiarism, citation, and referencing. These study notes should be used as a
tool for learning and inspiration, but any direct reproduction of the content without proper acknowledgment and
citation may constitute academic misconduct.
4. Limited Liability: The seller of these study notes shall not be held liable for any direct or indirect damages,
losses, or consequences arising from the use of the notes. This includes, but is not limited to, poor grades,
academic penalties, or any other negative outcomes resulting from the application or misuse of the information
provide

]

, INF3720/FEB




UNIVERSITY EXAMINATIONS




JANUARY/FEBRUARY 2024

INF3720

Human-Computer Interaction II


Welcome to the INF3720 exam.

Examiner name: Dr. B Chipangura
Internal moderator name: Prof. S Eybers
External moderator name: Ms. V. Booi

This paper consists of 9 pages.

Total marks: 100

Instructions:
• This is a closed book exam.
• Answer all the questions.
• The marks for each question are given in brackets next to the question.
• Answer the questions in order. If you want to answer a question later, leave a blank space.
• You are not allowed to use Mobile devices, and Calculators during this exam.
• Pledge that you have neither given nor received aid on this examination (You must
respond to this pledge when submitting your assignment.)
• Students are required to use the IRIS invigilator.

Additional student instructions
1. Students must upload their answer scripts in a single PDF file (answer scripts must not be
password protected or uploaded as “read only” files)
2. Incorrect file format and uncollated answer scripts will not be considered.
3. Emailed scripts will not be accepted.
4. Students are advised to preview submissions (answer scripts) to ensure legibility and that
the correct answer script file has been uploaded.
5. Incorrect answer scripts and/or submissions made on unofficial examination platforms
(including the invigilator cell phone application) will not be marked and no opportunity will
be granted for resubmission. Only the last answer file uploaded within the stipulated
submission duration period will be marked.
6. The mark awarded for incomplete submission will be the final mark of the student. No
opportunity to resubmit will be granted.
7. The mark awarded for an illegible scanned submission will be the student’s final mark. No
opportunity to resubmit will be granted.
8. Submissions will only be accepted from registered student accounts.
9. Students who have not used the proctoring tool will be deemed to have transgressed the
Unisa examination rules and will have their marks withheld. If a student is found to have
been outside the proctoring tool for a total of 10 minutes during their examination session,
they will be considered to have violated the Unisa examination rules and their marks will be
withheld. For examinations that use the IRIS invigilator system, IRIS must be recorded
throughout the duration of the examination until the submission of the examination scripts.
10. Students have 48 hours from the date of their examination to upload their IRIS invigilator
results. Failure to do so will result in students being deemed not to have utilised the
proctoring tools.


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, INF3720/FEB


11. Students suspected of dishonest conduct during the examinations will be subjected to
disciplinary processes. Students may not communicate with anyone else or request help
from any other person during their examinations. Plagiarism is a violation of academic
integrity, and students who plagiarise, copy from published work or Artificial Intelligence
Software (eg ChatGPT) or on-line sources (eg course material), will be in violation of the
Policy on Academic Integrity and the Student Disciplinary Code and may be referred to a
disciplinary hearing. Unisa has zero tolerance for plagiarism and/or any other forms of
academic dishonesty.
12. Listening to audio (music) and using audio-to-text software is strictly prohibited during your
examination session unless such usage of the software is related to a student’s assistive
device which has been declared. Failure to do so will be a transgression of Unisa’s
examination rules, and student's marks will be withheld.
13. Students have 30 minutes to submit their answer scripts after the official examination time.
Students who experience technical challenges should report the challenges to the SCSC
on 080 000 1870 or their College exam support centres (refer to Get help during the
examinations by contacting the Student Communication Service Centre [unisa.ac.za])
within 30 minutes. Queries received after 30 minutes of the official examination duration
will not be responded to. Submissions made after the official examination time will be
rejected according to the examination regulations and will not be marked. Only the
communication received from your myLife account will be considered.
14. Nonadherence to the processes for uploading examination responses will not qualify the
student for any special concessions or future assessments.
15. Queries that are beyond Unisa’s control include the following: a. Personal network or
service provider issues.
b. Load shedding/limited space on personal computer
c. Crashed computer.
d. Non-functioning cameras or web cameras
e. Using work computers that block access to the myExams site (employer firewall
challenges)
f. Unlicensed software (eg licence expires during exams)

Postgraduate students experiencing the above challenges are advised to apply for an
aegrotat and submit supporting evidence within ten days of the examination session.
Students will not be able to apply for an aegrotat for a third opportunity to be examined.
Postgraduate/undergraduate students experiencing the above challenges at their second
examination opportunity will have to reregister for the affected module.
16. Students suspected of dishonest conduct during the examinations will be subjected to
disciplinary processes. UNISA has zero tolerance for plagiarism and/or any other forms of
academic dishonesty.
17. Students experiencing network or load-shedding challenges are advised to apply together
with supporting evidence for an Aegrotat within 3 days of the examination session.




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, INF3720/FEB


Question 1 [40 marks]
Each MCQ question counts 2 marks. Choose the most appropriate answer for each
question. For example, on your answer sheet, write the answer as 1.1. A.

Question 1.1
Informed consent means
A. Participants should not know why a design evaluation is done.
B. Participants in a design evaluation are informed about their rights.
C. Consent acts as a financial contract between participants and researchers.
D. Participants are under 18 years of age and have no consent.

Question 1.2
Which of the following issues should be considered when design-evaluation data is
interpreted:
A. Liability, validity, ecology, and scope.
B. Liability, validity, biases, and generalisability.
C. Reliability, validity, biases, and general issues.
D. Reliability, validity, biases, and generalisability.

Question 1.3
Which definition of 'hypothesis' is correct in the context of conducting experiments during
evaluation design?
A. A hypothesis is a guess or prediction about the way users will perform with an
interface.
B. A hypothesis is a t-test that validates a guess or prediction about the way users will
perform with an interface.
C. A hypothesis reveals whether the differences between experiments conducted under
different conditions are significant.
D. A hypothesis is a dissertation that contains the results of conducted experiments.

Question 1.4
What type of evaluation study is suitable to study the appropriation of technologies?
A. Conducting experiments.
B. Field studies
C. Usability Testing
D. Quantitative Research

Question 1.5
Usability testing is usually done in the following way:
A. Natural settings
B. The wild
C. Controlled settings
D. The 3D virtual settings

Question 1.6
Which statement regarding RESEARCH experiments is correct?
A. The results are reported to software developers and the press.
B. The results are often not replicable.
C. The researcher controls the dependent variables to measure the independent
variables.
D. The researcher controls independent variables to measure dependent variables.



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