Research Projects (A&F) tutorial topics (session 2) Spring 2024
Research projects (A&F) tutorial topics (session 2) Spring 2024
First of all: a checklist to evaluate acceptability of the research proposal and a note on how to refine research objectives in your proposal: an illustration.
Also take a look at some examples of research objectives.
The main theme is correlation analysis
1. On covariance [video]; demonstration of Excel
a. basic concept of correlation video: understanding correlation.
b. note the difference with causal relations. [also study the video on causal relationships]
c. a video: types of variables (detailed).
d. on mediators and moderators & control variables in correlation modelling. (further discussion of the mediator under the topic of intervening variables).
1.1 scatter diagram
*** basic tutorial video on scatterplot and linear correlation
(also refer to: https://www.excel-easy.com/examples/trendline.html), and coefficient of determination. A related video on the coefficient of determination/ correlation; a video on coefficient of determination and another one on the coefficient of correlation (steps).
*** on Simpson's Paradox [video]; a note on Simpson's paradox.
1.2 Data->data analysis -> regression
2. Videos:
1.1 scatter diagram
*** basic tutorial video on scatterplot and linear correlation
(also refer to: https://www.excel-easy.com/examples/trendline.html), and coefficient of determination. A related video on the coefficient of determination/ correlation; a video on coefficient of determination and another one on the coefficient of correlation (steps).
*** on Simpson's Paradox [video]; a note on Simpson's paradox.
1.2 Data->data analysis -> regression
2. Videos:
2.1 * the normal distribution./ * understanding the central limit theorem./ standardized normal distribution./ standard error briefing 1/ standard error : briefing 2.
3. Correlation hypothesis statements
3.1. Examples
2.2 on P-value and significance test/ Z-tests (also see p-value and alpha).
Also see slides on P-value.
Also see slides on P-value.
2.3 * video: one tailed and two tailed tests, and critical values.
3. Correlation hypothesis statements
3.1. Examples
For formulation of one-tailed test, some clarification about the null hypothesis related to correlation:
a. for right tailed test, use b ≤ 0 [b less than or equal to 0]
b. for left tailed test, use b ≥ 0 [ b is greater than or equal to 0]
3.5. A video on falsification.
4. On multiple regression analysis
** Introductory video: simple linear regression./ do a linear regression on Excel.
4,1 multiple linear regression. part 1
4.2 multiple linear regression part 2.
4.3 multiple linear regression - evaluating basic models.
4.4 using Excel for multiple regression analysis.
4.5 Interpreting Excel regression report. (also take a look at the topic of anova). (now study this online info also).
4.6 For students interested in panel data regression analysis, study this e-resource on panel research design.
e-resources:
Two videos on study of research validity: internal validity and external validity & internal validity.
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