NURS 3370: CHP 7 FORMULATING HYPOTHESES AND
RESEARCH QUESTIONS AND VERIFIED CORRECT ANSWERS
100% GUARANTEED PASS
Complex hypothesis
a statement explaining and/or predicting relationships between TWO OR MORE
independent and dependent variables
Dependent variable
A variable that is observed for changes or to assess the possible effect of a treatment or
manipulation; may be the effect or outcome of an experimental procedure; also referred
to as a criterion or outcome variable. Usually symbolized by the letter Y
-variable that is under investigation
Independent variable
A variable that is manipulated and controlled by the researcher; also called a predictor
variable. Usually symbolized by the letter X
-observed, introduced, or manipulated to determine effect it has on another variable
-may be classified as experimental, treatment, intervention, or predictor variable
Directional hypothesis
a hypothesis that makes a specific prediction about the direction of the relationship
between two variables
-usually derived from conceptual models or findings of previous research
-Clearer and more logical than nondirectional hypothesis
, Extraneous variable
a variable that is not controlled for in a study, which threatens the internal validity of the
study
-characteristics not under investigation but may be relevant to study
-exist in all studies
-May be classified as controlled or uncontrolled and recognize or unrecognized
Hypothesis
A statement about The relationship between the variables that are being investigated
- Researcher tries to collect data to support or refute them
- they do not have to be proven to be successful
- NOT needed for research classified as "descriptive"
Research hypothesis (H1 or H2)
A hypothesis stating a relationship or difference between two variables. Also called an
(alternative, declarative, or scientific hypothesis)
-indicates what researcher expects to find when conducting study
-can be simple or complex, directional or non-directional
True or false: hypotheses can also be characterized according to how they
derived
True: inductively and deductively
Nondirectional hypothesis
a hypothesis that does not stipulate in advance the direction and nature of the
relationship between two variables
RESEARCH QUESTIONS AND VERIFIED CORRECT ANSWERS
100% GUARANTEED PASS
Complex hypothesis
a statement explaining and/or predicting relationships between TWO OR MORE
independent and dependent variables
Dependent variable
A variable that is observed for changes or to assess the possible effect of a treatment or
manipulation; may be the effect or outcome of an experimental procedure; also referred
to as a criterion or outcome variable. Usually symbolized by the letter Y
-variable that is under investigation
Independent variable
A variable that is manipulated and controlled by the researcher; also called a predictor
variable. Usually symbolized by the letter X
-observed, introduced, or manipulated to determine effect it has on another variable
-may be classified as experimental, treatment, intervention, or predictor variable
Directional hypothesis
a hypothesis that makes a specific prediction about the direction of the relationship
between two variables
-usually derived from conceptual models or findings of previous research
-Clearer and more logical than nondirectional hypothesis
, Extraneous variable
a variable that is not controlled for in a study, which threatens the internal validity of the
study
-characteristics not under investigation but may be relevant to study
-exist in all studies
-May be classified as controlled or uncontrolled and recognize or unrecognized
Hypothesis
A statement about The relationship between the variables that are being investigated
- Researcher tries to collect data to support or refute them
- they do not have to be proven to be successful
- NOT needed for research classified as "descriptive"
Research hypothesis (H1 or H2)
A hypothesis stating a relationship or difference between two variables. Also called an
(alternative, declarative, or scientific hypothesis)
-indicates what researcher expects to find when conducting study
-can be simple or complex, directional or non-directional
True or false: hypotheses can also be characterized according to how they
derived
True: inductively and deductively
Nondirectional hypothesis
a hypothesis that does not stipulate in advance the direction and nature of the
relationship between two variables
