What is Hypothesis? (Part 1 of 2) 13 Types of Hypothesis (Null & Alternative) - Research Methodology

Dr. Manishika Jain
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https://www.examrace.com/Research/
Email: [email protected]

Dr. Manishika Jain in this lecture explains the meaning of hypothesis and 13 major types of research hypothesis:

Insufficient Evidence
Can be true or false
Tentative solution to a problem
May or may not be correct
Clear
Precise
Testable
Consistent with facts
Provide answer to problem
Logical simplicity
Not contradict established facts

Why Important?
Direction to research
Operationalize procedure
Select facts
Replicate research
Draw logical conclusion
Relation between variables
Provides a statement deduced from theory
Aims to Find?
Difference
Relationship (Statistically significant – Implies difference in result did not occur by chance)
Interaction
Null versus Alternative Hypothesis
Null Hypothesis (𝐻_0)
No statistical significance between the two variables.
Researcher is trying to disprove it. 
Individual is free from disease
Relationship is due to chance
Alternative Hypothesis (𝐻_𝑎)
Statistical significance between the two variables.
Researcher is trying to approve it 
Individual has disease
Relationship is not due to chance
If 𝐻_𝑎 is accepted, 𝐻_0 is rejected
Substantive vs. Statistical
Substantive – expected relation b/w variables, not operationalized
Statistical – operationalized in terms of statistical parameter

Simple vs. Complex
Simple – 1 IV & 1 DV
Complex – 2 or more IV & 2 or more DV
Practical vs. Statistical
Practical – In terms of practical outcomes
Statistical – In statistical outcomes
Positive, Negative or Null
Null – no relation b/w IV & DV
Positive
Negative
Universal vs. Existential
Universal – all variables are true at all times
“Brave soldiers if rewarded will perform well”
Existential – exist atleast for one particular case
“Few corporate staff might not perform well despite reward”

Chapters:
0:00 Introduction: What is Hypothesis? (Part 1 of 2) 13 Types of Hypothesis (Null & Alternative) - Research Methodology
0:09 Hypothesis
2:16 Concept
3:17 Why Important?
2:41 Aims to Find?
3:31 Null versus Alternative Hypothesis
4:47 Null Hypothesis (H_0)
5:44 Alternative Hypothesis (H_a)
9:35 Substantive vs. Statistical
10:45 Simple vs. Complex
11:49 Practical vs. Statistical
12:36 Positive Negative or Null
13:27 Universal vs. Existential

#Existential #Statistical #Researcher #Disease #Procedure #Deduced #Replicate #Significant #Tentative #Hypothesis #Manishika #Examrace


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