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PYC3704 EXAM PACK 2024
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PYC3704EXAM PACK
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2022
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, PYC3704 October/November 2019
1. 1 Answer: The correct option is 1
Reasoning:
• Alternative 1 is correct because a theory is defined as a “network of postulated
relations between constructs”.
• Alternative 2 is wrong because one does not test relations between
hypotheses, but between variables.
• The relations are postulated (and therefore not verified) so that alternative 3 is
also incorrect.
2. 3 Answer: The correct option is 3
Reasoning:
The dependent variable is dependent on the independent variable, or conversely,
the independent variable influences the dependent variable. X affects Y (X is the
independent variable and Y is the dependent variable)
3. 3 Answer: The correct option is 3
Reasoning:
A hypothesis is an educated guess, while a theory is a postulated relation between
a set of constructs.
4. 2 Answer: The correct option is 2
Reasoning:
Operational definitions are used to cross the gap between theory and empirical
research. It does this by describing theoretical constructs in terms of observable
instances, which can be measured and used to test a theory.
5. 1 Answer: The correct option is 1
6. 2 Answer: The correct option is 2
Reasoning:
Intelligence is a latent variable because it cannot be observed directly. The results
of the psychometric test can however be observed directly and can therefore be
regarded as the manifest variable.
7. 2 Answer: The correct option is 2
Reasoning:
• Alternative 2 is correct, because a specific hypothesis is now derived from the
theory presented in the scenario.
• Alternatives 1 and 3 is incorrect because the terms ‘estimated size’ and ‘haziness’
have not been operationally defined in the statement given.
8. 3 Answer: The correct option is 3
Reasoning:
(The dependent variable is usually the one that the researcher is interested in, the
variable that is the focus of the research. The independent variable is something
that the researcher manipulates, to see how this affects the dependent variable (in
other words, the dependent variable is dependent on the independent variable).)
9. 1 Answer: The correct option is 1
10. 3 Answer: The correct option is 3
11. 3 Answer: The correct option is 3
12. 2 Answer: The correct option is 2
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, Reasoning:
The independent variable is something that the researcher manipulates, to see
how this affects the dependent variable (in other words, the dependent variable is
dependent on the independent variable).
13. 3 Answer: The correct option is 3
14. 1 Answer: The correct option is 1
Reasoning: p(G) = 12/47 = 0.255
15. 2 Answer: The correct option is 2
16. 3 Answer: The correct option is 3
17. 2 Answer: The correct option is 2
18. 1 Answer: The correct option is 1
Reasoning:
z=
80−60
10
=
20
10
=2
19. 1 Answer: The correct option is 1
20. 3 Answer: The correct option is 3
Reasoning:
Z=
35−23
8
= 1.5.
Looking the value 1.5 up in the probabilities associated with standard normal
distribution, under the “greater than” column (since the question states ‘more
than’), the answer is 0.9332.
21. 3 Answer: The correct option is 3
Reasoning:
Σ(𝑓𝑟𝑒𝑞𝑢𝑒𝑛𝑐𝑦 𝑐𝑜𝑢𝑛𝑡 𝑜𝑓 𝑐𝑜𝑟𝑟𝑒𝑐𝑡 𝑟𝑒𝑠𝑝𝑜𝑛𝑠𝑒𝑠 7 𝑡𝑜 10)
Σ𝑡𝑜𝑡𝑎𝑙 𝑓𝑟𝑒𝑞𝑢𝑒𝑛𝑐𝑦 𝑐𝑜𝑢𝑛𝑡
= 17+9+6
1+4+11+14+18+22+17+9+6
= 32
102
= 0.32
22. 1 Answer: The correct option is 1
Where σ denotes the standard deviation, and n denotes the sample size.
23. 1 Answer: The correct option is 1
Reasoning:
CONDITIONAL PROBABILITY - a particular probability is conditional on something
else happening. Event A conditional on Event B happening = P (A B)
24. 1 Answer: The correct option is 1
Reasoning:
The formula p (50% pass) should be read as the conditional probability of someone
obtaining 50%. It is clear from the example that any student selected from the
given population who obtained 50% or more, has necessarily also passed.
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