Exam (elaborations)
IOP2601 Assignment 3 (COMPLETE ANSWERS) Semester 2 2024 - DUE 25 September 2024
- Course
- IOP2601
- Institution
- University Of South Africa
IOP2601 Assignment 3 (COMPLETE ANSWERS) Semester 2 2024 - DUE 25 September 2024
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OP2601 Assignment 3(COMPLETE ANSWERS)
Semester 2 2024 - DUE 25
September 2024 ; 100%
TRUSTED Complete,
trusted solutions and
explanations.
, QUESTION 1 [5] 1.1 Indicate whether the following statements are True or
False. a) A non-directional hypothesis is used when there is no prior
theoretical basis for predicting the specific direction of the effect or
relationship between variables. (1) b) In a study testing a directional
hypothesis, the critical region for rejecting the null hypothesis is split into two
tails of the distribution. (1) c) A non-directional hypothesis always predicts that
there will be no difference or relationship between variables. (1) 1.2 A
researcher is investigating the effectiveness of a new teaching method in
improving students’ test scores relative to a traditional teaching method. The
researcher anticipates that the new method will result in significantly higher
test scores based on prior research findings. Based on this context, formulate
a directional hypothesis.(2)
1.1: True/False Statements
a) True
A non-directional hypothesis is indeed used when there is no prior theoretical basis for predicting
the specific direction of the effect or relationship between variables. It simply predicts that there
will be a difference or relationship, without specifying whether it will be positive or negative.
b) False
In a study testing a directional hypothesis, the critical region for rejecting the null hypothesis is
not split into two tails; it is only in one tail (since the prediction is for a specific direction of
effect). A two-tailed test is used for non-directional hypotheses.
c) False
A non-directional hypothesis does not predict that there will be no difference or relationship;
rather, it predicts that there will be a difference or relationship, but it does not specify the
direction of the effect.
1.2: Directional Hypothesis
Given the context that the researcher anticipates that the new teaching method will result in
significantly higher test scores than the traditional method, the directional hypothesis would be:
"Students who are taught using the new teaching method will have significantly higher test
scores than those taught using the traditional method."
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