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Problems and Hypothesis
Chapter 2
16
Communication
Graduate
11/06/2010

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Term

Problem

Definition
A problem is an interrogative sentence or statement that asks: What relationship exists between two or more variable?
Term
Criteria of a problem (1)
Definition
1. A problem should express a relation between two or more variables
Term
Criteria Of a problem (2)
Definition
2.  Problem should be stated clearly and Unambiguously in question form
Term
Criteria of a Problem (3)
Definition
Problem and problem statements must imply possibilities of empirical testing.
Term
Hypothesis
Definition
is a conjectural statement of the relation between two or more  variables
Term
Criteria for hypothesis 1
Definition
Hypotheses are statements are statements about relations between variables.
Term
Criteria for Hypotheses 2
Definition
Hypotheses carry clear implications for testing the stated relations.
Term

The Importance of problems/hypotheses

Definition

1. they are working instuments of theory

2. Can be tested and shown to be probably true or not true

3. they allow scientists to get outside themselves and hence are powerful toools for the advancement of knowledge.

4. Direct research

5. Enable researcher to deduce specific empiricial manifestations that they imply

6. reflect multivariable complexity of life

7.confirm /disconfirm theory

 

Term
Reflect mutivariable complexity of life
Definition

x- independent variable

         law-casual explanation

         rule-rule based explanation

          reason-teleological explanation

y-dependent variable

z-boundries, conditions

Term
Univarite
Definition
1x--> 1y
Term
Multivariable
Definition
more than 1 cause --> 1 effect
Term
Mutivariate
Definition
1 or more cause --> more than 1 effect
Term
Hypothesis predictions of difference
Definition
there will be a difference attributes differ between variables
Term
Hypothesis predictions of Relationship
Definition
proposing the relationship these variables continuous relationship
Term
Directional hypothesis (1 tail)
Definition

-predicting the direction of the outcome

 

-specifies a directional relationship between groups.

Term
Nondirectional hypothesis (2 tail)
Definition
A hypothesis that does not specify the nature and direction of the relationship between the independent and dependent variables
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