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HMEMS80 ASSIGNMENT 02 SEMESTER 1 2025 Extraneous variables are important to identify and attempt to control when the focus of the research is on proving a causal relationship. a. True because they have an unpredictable impact on the dependent variable. b

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HMEMS80 ASSIGNMENT 02 SEMESTER 1 2025 Extraneous variables are important to identify and attempt to control when the focus of the research is on proving a causal relationship. a. True because they have an unpredictable impact on the dependent variable. b. False because they do not influence the dependent variable. c. True because experimental research is about controlled investigation. d. False because some variables cannot be controlled.

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PU E
SHI
NG Y L E NC
OU TO THE GATE OF EXC EL




Education is the most powerful weapon which you can use to change the world

,WARNING: PLEASE NOTE THAT PLAGIARISM IS A SERIOUS ACADEMIC
OFFENSE, therefore students must use this document ONLY as a guideline. Hence
students have regenerated their own (personalized) solutions paying particular
attention to module contents as prescribed by module facilitators, lecturers and
supervisors. This document’s purpose is to compact all sources of information that
might be relevant to students’ assignments, hence additional knowledge on the
provided information is not restricted by the authors. However, submitting this
document as one’s final work is considered unethical, and students should be
penalized. If this document is plagiarized by the users and fails, EXCELGATE should
not be rendered accountable since the contents in this document only give learners a
kick-start on what is expected of them from their areas of specialty.

CAUTION: STUDENTS ARE NOT MANDATED TO USE EVERY DETAIL IN THIS
DOCUMENT IN WRITING THEIR ASSIGNMENTS




Education is the most powerful weapon which you can use to change the world

,4/27/25, 5:52 PM Assessment 2




HMEMS80-25-S1  Welcome Message  Assessment 2


QUIZ




Question 1

Not yet answered

Marked out of 1.00




Doing a replication research study is another form of plagiarism.


a. True
b. False

Clear my choice




Question 2

Not yet answered

Marked out of 1.00




______ is concerned with the authenticity of the data.


a. External criticism

b. Accuracy

c. Limitation
d. Reliability

Clear my choice




Question 3

Not yet answered

Marked out of 1.00




An advantage of a cross-sectional method is that ______.


a. it is inexpensive

b. it limits comparability of groups
c. there is a high dropout rate

d. it examines people at the same chronological age

Clear my choice




https://mymodules.dtls.unisa.ac.za/mod/quiz/attempt.php?attempt=26743110&cmid=1069659 1/14

, 4/27/25, 5:52 PM Assessment 2

Question 4

Not yet answered

Marked out of 1.00




Which approach is most appropriate for obtaining a deeper understanding of a phenomenon?


a. Experimental research.
b. Quasi-experimental research.

c. Qualitative research.

d. Descriptive research.

Clear my choice




Question 5

Not yet answered

Marked out of 1.00




Type II errors cannot be decreased by increasing the sample size


a. True
b. False

Clear my choice




Question 6

Not yet answered

Marked out of 1.00




A researcher would like to investigate the relationship between performance anxiety and exam scores over a period of three
years. Which research design would be most suitable?


a. Experimental
b. Qualitative

c. Longitudinal
d. Quasi-Experimental

Clear my choice




Question 7

Not yet answered

Marked out of 1.00




The null hypothesis always refers to the ______.


a. sample

b. generalizability of the results

c. population
d. end-result of the research project

Clear my choice




https://mymodules.dtls.unisa.ac.za/mod/quiz/attempt.php?attempt=26743110&cmid=1069659 2/14

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