Research Methodology for IB: Summaries, lecture notes and practice exams - UG
- 1971 reads
The airport is typically busier in holiday periods than in regular working weeks. A marketing manager fears passengers are annoyed by waiting times during holiday periods. She therefore wants to know whether more complaints are made by passengers during holiday periods than during regular working weeks. She wants to test the hypothesis that the number of complaints made by passengers is higher during holiday weeks than during regular working weeks. Which test should she use?
Which statement about the following output is true?
Reliability statistics
Cronbach's Alpha | N of Items |
---|---|
,685 | 3 |
Item Statistics
Mean | Std. Deviation | N | |
---|---|---|---|
Test1 | 5,0000 | 2,50517 | 30 |
Test2 | 4,3667 | 1,65015 | 30 |
Test3 | 3,7333 | 1,55216 | 30 |
Item-Total Statistics
Scale Mean if Item Deleted | Scale Variance if Item Deleted | Corrected Item-Total Correlation | Cronbach's Alpha if Item Deleted | |
---|---|---|---|---|
Test1 | 8,1000 | 6,507 | ,642 | ,423 |
Test2 | 8,7333 | 9,375 | ,880 | ,147 |
Test3 | 9,3667 | 16,516 | ,164 | ,910 |
Which of the following statements about questionnaire construction is/are true?
You are investigating the financial situation of car dealerships in the Netherlands. Thousands of car dealerships are scattered all over the country, so you need to select a sample of dealerships for your study. To draw your sample, you select three municipalities in different parts of the country and you pick a random sample of dealerships from these municipalities.
Which type of sampling are you using?
Modern cars are increasingly equipped with gadgets that improve traffic safety. One such gadgets is an eye-tracking device that monitors your eye movements to detect whether you are falling asleep. If you do, it sounds an alarm. However, in testing it appeared that every time drivers diverted their eyes from the road, the alarm went off. Which description fits the performance of the gadget best?
Which set of hypotheses for an independent samples t-test are correct?
You have been asked to study employee satisfaction at a Dutch supermarket chain. In total, this chain has 14.000 employees. The supermarket chain has given you contact details from 1.000 randomly selected employees. From this list, you chose 200 employees to send a survey to. A total of 143 employees completed the survey, the other 57 did not respond.
What is the sample you used in this study?
Which of the following statements about explained variance is/are true?
What should you do when cases have missing values?
You conduct an experiment into ways to promote pro-environmental behavior at work. Specifically, you are trying to reduce energy use. You divide the employees of an office into two groups: A group that receives information about various ways to save energy, and a group that does not receive any information. After two weeks, you compare the energy use in the two groups over the past two weeks to see if the information was effective. Which type of experiment did you use here?
Which of the following statements is/are true?
You want to measure the concept ‘empathy’ in a study into management styles. For this particular concept, the sentence ‘The extent to which a manager is perceived as caring, attentive, and genuinely interested in others’ is an example of a…
Imagine you are running an experiment on the effect of music volume on sales in supermarkets. A supermarket allowed you to change the volume of the music in the supermarket for a period of three weeks. You compare three different volume settings: no music in week 1, soft music in week 2, and relatively loud music in week 3. At the end of the experiment, you compare the sales results for each volume level to measure the effects of music volume on sales.
Which type of experiment are you conducting here?
In a survey about advertising and household appliances, you asked participants to indicate agreement with the following three items to measure ‘purchase intention’:
Completely disagree 1 2 3 4 5 Completely agree
1 Not at all 2 Maybe 3 Probably 4 Very likely 5 Definitely
Completely disagree 1 2 3 4 5 Completely agree |
Assuming Cronbach’s alpha is sufficient, are you theoretically allowed to create a new sum variable ‘purchase intention’ with any of these items?
You were disappointed to find that only 143 employees participated in your study (see previous question). After checking the characteristics of the people who refused to participate, you find that males were more likely to refuse to participate than females (a case of systematic non-response). How does systematic non-response affect the accuracy and precision of your sample?
Which of the following statements about experiments is/are true?
What can you conclude based on the following output?
Correlations
Motivation | Ambition | |||
---|---|---|---|---|
Spearman's rho | Motivation | Correlation Coefficient | 1,000 | ,192 |
Sig. (2-tailed) | . | ,111 | ||
N | 70 | 70 | ||
Ambition | Correlation Coefficient | ,192 | 1,000 | |
Sig. (2-tailed) | ,111 | . | ||
N | 70 | 70 |
Consider the following MultiTrait MultiMethod Matrix. What do you conclude regarding the validity of the two new measures of curiosity and openness?
CuriosityNew | Curiosity | OpennessNew | Openness | |
---|---|---|---|---|
CuriosityNew | 1 | |||
Curiosity | 0,61 | 1 | ||
OpennessNew | 0,58 | 0,53 | 1 | |
Openness | 0,49 | 0,17 | 0,21 | 1 |
One way to test if cognitive tests administered to children in primary school are useful is to check whether their results on these tests are related to their study performance in high school. Which type of validity are you testing in this situation?
Which of the following measures provides an example of an interval datatype?
B
D
A
D
B
C
B
B
A
D
A
B
C
B
C
B
C
A
A
D
The airport is typically busier in holiday periods than in regular working weeks. A marketing manager fears passengers are annoyed by waiting times during holiday periods. She therefore wants to know whether more complaints are made by passengers during holiday periods than during regular working weeks. She wants to test the hypothesis that the number of complaints made by passengers is higher during holiday weeks than during regular working weeks. Which test should she use?
Which statement about the following output is true?
Reliability statistics
Cronbach's Alpha | N of Items |
---|---|
,685 | 3 |
Item Statistics
Mean | Std. Deviation | N | |
---|---|---|---|
Test1 | 5,0000 | 2,50517 | 30 |
Test2 | 4,3667 | 1,65015 | 30 |
Test3 | 3,7333 | 1,55216 | 30 |
Item-Total Statistics
Scale Mean if Item Deleted | Scale Variance if Item Deleted | Corrected Item-Total Correlation | Cronbach's Alpha if Item Deleted | |
---|---|---|---|---|
Test1 | 8,1000 | 6,507 | ,642 | ,423 |
Test2 | 8,7333 | 9,375 | ,880 | ,147 |
Test3 | 9,3667 | 16,516 | ,164 | ,910 |
Which of the following statements about questionnaire construction is/are true?
You are investigating the financial situation of car dealerships in the Netherlands. Thousands of car dealerships are scattered all over the country, so you need to select a sample of dealerships for your study. To draw your sample, you select three municipalities in different parts of the country and you pick a random sample of dealerships from these municipalities.
Which type of sampling are you using?
JoHo can really use your help! Check out the various student jobs here that match your studies, improve your competencies, strengthen your CV and contribute to a more tolerant world
There are several ways to navigate the large amount of summaries, study notes en practice exams on JoHo WorldSupporter.
Do you want to share your summaries with JoHo WorldSupporter and its visitors?
Field of study
Add new contribution