Hypotheses

Question 1

Hypothesis definition

Answer 1

Important consideration in the formulation of a research problem in quantitative research
Bring direction, specificity, and focus to a research study

Question 1

Functions

Answer 1

Brings specificity and focus to your study
Enhances objectivity
Testing of it enables you to conclude what is true or false

Question 2

Phase 1 of testing

Answer 2

Formulate your hunch or assumption

Question 3

Phase 2 of testing

Answer 3

Collect the required data

Question 4

Phase 3 of testing

Answer 4

Analyze data to draw conclusions about that hunch (true or false)

Question 5

A hypothesis should be:

Answer 5

Measurable
Capable of verification
Related to existing body of knowledge

Question 6

Null hypothesis

Answer 6

There’s no effect of an intervention on variables

Question 7

Hypothesis of difference

Answer 7

You stipulate that there will be a difference but you do not predict the magnitude

Question 8

Hypothesis of point-prevalence

Answer 8

When you have enough knowledge about the situation or phenomenon and you can speculate about the frequency/prevalence/outcome

Question 9

Hypothesis of association

Answer 9

Stipulates the extent of the relationship or the prevalence of a phenomenon

Question 10

Type 1 error

Answer 10

Rejection of null hypothesis when it’s true

Question 11

Type 2 error

Answer 11

Acceptance of null hypothesis when it’s false

Question 12

Example:

Answer 12

Donated blood is tested for infectious diseases. Tests are performed to see if a toxin is present, and the entire batch is discarded if it is
H0 = the batch does not contain any toxins
Ha = the batch does contain toxins
Type 1 error: we say that the batch does have toxins but it doesn’t
Type 2 error: we say that the batch doesn’t have toxins but it does