Correlation or Pearson’s R
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Correlation or Pearson’s R
Task…Correlation – Data Analysis — READ..READ…..the attached FILE below
You use Study Time and Grade Point Average for your Correlation analysis.
What level(s) of measurement is/are the variables?—-10%
WHAT WOULD BE YOUR RESEARCH QUESTION?—-20%
What is your H1 and H0?——20%
If your SIGNIFICANT VALUE IS “.04” = WOULD YOU ACCEPT OR REJECT H0 – THE NULL ——10%
WHAT, THEREFORE IS THE FINDING(S) OF YOUR STUDY. —— 40%
This is the file
TEXTING OF HYPOTHESIS
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Instructor: Steve A. Buddingt0n, Ph.D., MSW, LMSW
Semester: ONLINE CLASS
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Students, please KEEP THIS DOCUMENT; you will use the information for the REST OF THE SEMESTER – to complete your DATA ANALYSIS ASSIGNMENTS. A MORE detailed explanation can be found in other text – simplified for this class and the “virtual teaching/learning” modality.
➢ Two Types of Hypotheses : (a) Research: H1 and (b) Null H0
➢ Research: H1 – is your IDEA of “how the VARIABLES ARE RELATED”
➢ Null: H0 -– is the OPPOSITE RELATIONSHIP OF THE VARIABLES stated in Research: H1”
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……..for example, let us look at the Correlational Relationship between “Grade point Average (GPA) and Study Time
…….GPA is defined as a point achieved on a 4.0 quality point scale – Conceptualization
…..Study Time is defined as the number of hours spent studying/day – Conceptualization
➢ Collecting the DATA/NUMBERS for both VARIABLES is called – Operationalization
ACCEPTING OF REJECTING THE NULL HYPOTHESIS
➢ IMPORTANT: The SOLE OBJECTIVE HYPOTHESIS TESTING IS TO REJECT THE NULL, AND THEREFORE YOU HAVE TO ACCEPT THE RESEARCH HYPOTHESIS – YOUR IDEA ON THE RELATIONSHIP BETWEEN THE VARIABLES.
➢ HOW DO WE REJECT THE NULL – RESEARCHERS USE WHAT IS CALLED A SIGNIFICANCE LEVEL OR ASEEN IN YOUR TEXTBOOK (Sig Value). The SIG VALUE IN SOCIAL SCIENCES IS… .05. THE .05 MEANS THE NULL HYPOTHESIS IS ONLY RIGHT “5 out of 100 times”, BUT YOUR RESEARCH HYPOTHESIS IS RIGHT “95 out of 100 times”, IT IS THEREFORE LOGICAL TO REJECT THE NULL AND ACCEPT THE RESEARCH HYPOTHESIS.
➢ THE REJECT RULE IS, THEREFORE, IF THE “SIG. VALUE IS “<= .05” – REJECT THE NULL (H0), AND THEREFORE ACCEPT THE RESEARCH (H1) --- if the “sig value” is GREATER THAN .05 ACCEPT THE NULL.