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Hypothesis Types and Directionality

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Questions and Answers

Which statement correctly describes a simple hypothesis?

It does not specify the direction of the relationship between variables.

It predicts the relationship between multiple independent and dependent variables.

It predicts the relationship between one independent variable and one dependent variable. (correct)

It involves variables that cannot be manipulated.

What distinguishes a directional hypothesis from a non-directional hypothesis?

Directional hypotheses depend solely on dichotomous variables.

Directional hypotheses predict that no relationship exists.

Directional hypotheses specify the direction of the relationship between variables. (correct)

Directional hypotheses predict the existence of a relationship between variables.

Which of the following is an example of a complex hypothesis?

The impact of mothers' heartbeats versus soft music on infants' physiological parameters. (correct)

The effect of virtual reality on children's anxiety levels.

A relationship exists between age and health beliefs.

Patients receiving an educational program will have improved dietary knowledge.

Which of the following best describes non-directional hypotheses?

<p>They indicate that a relationship exists without specifying its direction.</p> Signup and view all the answers

What is a characteristic of dichotomous variables?

<p>They only consist of two categories.</p> Signup and view all the answers

Study Notes

Hypothesis Types

Simple Hypothesis: Predicts a relationship between one independent and one dependent variable. Example: Children exposed to virtual reality will experience less pre-operative anxiety.
Complex Hypothesis: Predicts a relationship between two or more independent and/or dependent variables. Example: Mothers' heartbeats vs. soft music on premature infant physiological parameters, and feeding tolerance.

Hypothesis Directionality

Directional Hypothesis: Predicts the direction of the relationship between variables. Example: Patients receiving an educational program on healthy diets will have higher dietary knowledge scores than those who don't.
Non-Directional Hypothesis: Doesn't specify the direction of the relationship.

Variables

Attribute Variables: Cannot be manipulated, examples include age, health beliefs.
Dichotomous Variables: Nominal variables with only two categories or levels. An example is gender (male/female).

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Description

This quiz covers the various types of hypotheses, including simple and complex hypotheses, as well as the concepts of directional and non-directional hypotheses. Additionally, it explores different types of variables such as attribute and dichotomous variables, providing examples for better understanding.