IOP2601 Assignment 3
Semester 2 2024 - DUE 25
September 2024
QUESTIONS WITH ANSWERS
[School]
[Course title]
, IOP2601 Assignment 3 Semester 2 2024 - DUE 25 September 2024
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)
QUESTION 2 [15]
A researcher is investigating whether South African high school students who use the new digital
learning platform achieve higher academic performance compared to those who receive the
traditional classroom instruction. Prior research indicates that the digital learning platform is
expected to result in higher academic performance scores. Table 1 provides the scores obtained
from 100 randomly selected students. Table 1 Academic Performance Scores N x̅ s2 Digital
Learning Platform (DLP) 31 5,34 1,28 Traditional Classroom Instruction (TCI) 31 4,94 1,29
Semester 2 2024 - DUE 25
September 2024
QUESTIONS WITH ANSWERS
[School]
[Course title]
, IOP2601 Assignment 3 Semester 2 2024 - DUE 25 September 2024
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)
QUESTION 2 [15]
A researcher is investigating whether South African high school students who use the new digital
learning platform achieve higher academic performance compared to those who receive the
traditional classroom instruction. Prior research indicates that the digital learning platform is
expected to result in higher academic performance scores. Table 1 provides the scores obtained
from 100 randomly selected students. Table 1 Academic Performance Scores N x̅ s2 Digital
Learning Platform (DLP) 31 5,34 1,28 Traditional Classroom Instruction (TCI) 31 4,94 1,29
