STAT1103 WEEK 8 QUESTIONS
COMPLETE WITH VERIFIED ANSWERS
\.Hypothesis - ANSWERS-Good Research Hypothesis
1. Declarative & directional
2. States a clear relationship among variables
3. Directional
4. Linked to theory ( & prior research)
5. Testable and falsifiable
\.Research Steps aka scientific method 8 steps - ANSWERS-1. Make observation
2. Review literature, identify theory(s)
3. Generate Aims, RQ & Hypothesis
4. Design the study
- select appropriate study design
- identify the population, sample, and sampling method
- operationalise the constructs or phenomena ( measures)
5. Obtain Ethical approval
6. Run the study
- recruit participants
- disseminate the survey or observe / run the experiment
, 7. Analyse the data - results
8. Discussion- write up and disseminate the findings
\.Correlation -2 numeric variables - ANSWERS-For correlation
Assumptions:
- both variables are numeric
- mini tonic linear relationship
- independent variable
Check with scatter plot
Use menu for graph, scatter
Or
twoway scatter var1 ll lfit var2
Correlate var1 var2
Pwcorr var1 var2, sig for p-values
Strength
0- 0.1 negligible
0.1- 0.3 weak
0.3.- 0.5 moderate
0.5- 1 Strong
COMPLETE WITH VERIFIED ANSWERS
\.Hypothesis - ANSWERS-Good Research Hypothesis
1. Declarative & directional
2. States a clear relationship among variables
3. Directional
4. Linked to theory ( & prior research)
5. Testable and falsifiable
\.Research Steps aka scientific method 8 steps - ANSWERS-1. Make observation
2. Review literature, identify theory(s)
3. Generate Aims, RQ & Hypothesis
4. Design the study
- select appropriate study design
- identify the population, sample, and sampling method
- operationalise the constructs or phenomena ( measures)
5. Obtain Ethical approval
6. Run the study
- recruit participants
- disseminate the survey or observe / run the experiment
, 7. Analyse the data - results
8. Discussion- write up and disseminate the findings
\.Correlation -2 numeric variables - ANSWERS-For correlation
Assumptions:
- both variables are numeric
- mini tonic linear relationship
- independent variable
Check with scatter plot
Use menu for graph, scatter
Or
twoway scatter var1 ll lfit var2
Correlate var1 var2
Pwcorr var1 var2, sig for p-values
Strength
0- 0.1 negligible
0.1- 0.3 weak
0.3.- 0.5 moderate
0.5- 1 Strong
