Questions & Answers, & Study Guide |Frequently
Most Tested Questions |Graded A+ ,Reviewed
and Rationalized | 100% Guarantee Pass and
Well Accurate | Latest Exam and Brand New
Version!!!
What do psychologists study?
ANSWER:
• Biological Foundations
• Mental Life
• Change
• Self and Others
• Potential and Dysfunction
What is the scientific method and how is it applied to psychological research?
ANSWER:
The scientific method is the set of assumptions, rules, and procedures scientists
use to conduct research. In addition to requiring that science is verifiable, the
scientific method demands that procedures are free of personal bias.
What are the various research methods in the field of psychology?
ANSWER:
Descriptive Research
Correlational Research
Experimental Research
What is descriptive research?
ANSWER:
,research designed to provide a snapshot of the current state of affairs.
What is Correlational Research
ANSWER:
research designed to discover relationships among variables and to allow the
prediction of future events from present knowledge.
What is Experimental Research
ANSWER:
research in which there is a random assignment of research participants into
two groups. This is followed by a manipulation of a given experience for one
group while the other is not manipulated. One group is the experimental group
that receives the manipulation. The other group is the control group that does
not. The two groups are then compared to determine the influence of the
manipulation.
What is the definition of a hypothesis?
ANSWER:
A specific and falsifiable prediction about the relationship between two or more
variables.
What is an operational definition? Provide an example.
ANSWER:
An operational definition refers to a precise statement of how a conceptual
variable ( abstract idea that form the basis of research hypotheses ) which is
turned into a measured variable ( varialbes consisting of numbers that represent
the conceptual variables )
(Conceptual Variable) Depression - (operational definition) Number of negative
words used in a creative story; number of appointments made with a
psychotherapist
Why are ethical guidelines needed within psychological research?
ANSWER:
These are needed with psychological research is the prevent physical and/or
emotional harm to the participants.
What is the relationship between a population and a sample?
,ANSWER:
The people chosen to participate in the research, called a sample, are selected
to be representative of all the people that the researcher wishes to know about,
called the population. "Sampling is the process of selecting a representative
group from the population under study. The target population is the total group
of individuals from which the sample might be drawn. A sample is the group of
people who take part in the investigation. The people who take part are referred
to as "participants"."
Independent Variable
ANSWER:
The variable in an experiment that is manipulated or compared
Dependent Variable
ANSWER:
The variable in an experiment that is measured; the outcome of an experiment
Control Group
ANSWER:
The group of subjects in an experiment that does not receive the independent
variable
Experimental Group
ANSWER:
EXPERIMENTAL GROUP is the group receiving the independent variable
What does a correlational research design examine? Provide an example.
ANSWER:
research designed to discover relationships among variables and to allow the
prediction of future events from present knowledge.
Describe examples of a positive and a negative correlation.
Correlational-To assess the relationships between and among two or more
variables.
Postiive - As children age they get better at math
Negative - Age of a child and the number of diapers they use "Negative
correlation, the variables move in inverse, or opposite, directions. As one
, variable increases, the other variable decreases. For example, there is a
negative correlation between self-esteem and depression. Positive correlation is
when there is an increase in one variable it is associated with an increase in
another variable. For example: with height and weight, taller people tend to be
heavier."
What are the differences in interpretations of correlational and experimental
designs?
ANSWER:
In correlational studies a researcher looks for associations among naturally
occurring variables, whereas in experimental studies the researcher introduces
a change and then monitors its effects.
"An experiment isolates and manipulates the independent variable to observe its
effect on the dependent variable, and controls the environment in order that
extraneous variables may be eliminated. Experiments establish cause and
effect. A correlation identifies variables and looks for a relationship between
them."
What are the four parts of a neuron and its role in neural communication?
ANSWER:
Cell Body (Soma), Dendrites, Axon, Myelin Sheath
Cell Body (Soma)
ANSWER:
contains the nucleus of the cell and keeps the cell alive
Dendrites
ANSWER:
a branching, treelike fiber which collects information from other cells and sends
the information to the soma
Axon
ANSWER:
a long, segmented fiber which transmits information away from the cell body
toward other neurons or to the muscles and glands.
Myelin Sheath