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psyc 200

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Class 1 module 1 introduction:
What is psychology?
-Psychology is the scientific study of mental processes and behavior
-Mental processes: activities of our brain when engaged in thinking,
observing the environment and using language
-Behaviour: observable activities of an organism, often in response to
environmental cues, what we can actually see
-The objective of psychology is to describe(e.g.; the score on a specific test),
explain (propose a cause for the behaviour, what where when, and why)
predict and modify the behaviour and mental processes
Levels of Psychological Analysis
When studying behaviours and mental processes, one can study the
influences of:
-The brain
Neuronal activity, brain structure, genes
Ex:what is going on when presented witch specific information
-The person
Emotions, ideas, thoughts
-What are the thoughts, and feelings that impact the person's behaviour
-The group
Friends, family, population, culture
-social environments and how that shapes someone and how that changes
overtime
September 18: module 2
Psychology as a science
The scientific method
● Psychology shares with other sciences goals and ways of proceeding
● We need verifiable research based on the scientific method (helps us
think more wisely) (we need to have curiosity)(what do you mean and
how do you know this)
○ Defined as : Set of protocols that researchers will follow such
as, identify a research problem, formulate a testable research
hypothesis, design a study to verify it, collect and analyze
data, draw conclusions and publish their results
● To have a scientific attitude need : curiosity, skepticism (indicates
some type of cautious ) & humility (being aware that we can make
mistakes, open to knew ideas)
● Reflection and critical thinking (ability to question the value of any
statement, allows you to reveal gaps in your judgment and
reasoning) (find ways where you can find new explanations)
How do we know this?
What is the evidence?
Are there other possible explanations?
Why is it important to question research? You can be misled into believing
that something is true when it is not
Back up what you are saying by using scientific articles
● Deductive reasoning: reasoning proceeding from broad basic
principles applied to specific situations
○ All spiders have 8 legs. A tarantula is a spider. Therefore,
tarantulas have 8 legs.
● Inductive reasoning: reasoning process proceeding from small
specific situations to more general truths
○ I tend to catch colds when people around me are sick.
Therefore, colds are infectious.
● Hypothetico-deductive reasoning: process of modern science where
scientists begin with an educated guess, perhaps based on previous
research, about how the world works, and then set about designing
small controlled observations to support or invalidate that
hypothesis.
● Use your experiment to see if your predictions are accurate or not
● Hypothesis may be difficult to test directly so we may have to use
predictions which we then test out with experiments
● Empirical: able to be tested in objective ways
○ Includes: data collection, analysis and interpreting data
○ Collect data, organize it, and create conclusions
○
● Facts vs. Values
○ Fact: statement found through an empirical study
○ An objective statement that could be accurate
○ Value: personal statement
○ Can be considered true or false
○ Research can provide facts that can help develop values
The scientific method definitions
● Theories: ideas about laws that govern phenomena
○ Starting point of research
○ Will help provide reasoning and make predictions
○ Can be modified
● Hypothesis: a general statement about the way variables relate that
is objectively falsifiable
● Variable: condition, event or situation that is studied in an
experiment
○ Types of variables:
■ Independent variable (IV)—the variable that you
manipulate (ex smoking or not smoking)
■ Dependent variable (DV)—the variable that you measure
(or the variable that is changed by the IV)(ex how much
you learn)
● Operationalize: to develop a working definition of a variable that
allows you to test it
Why is it important to be very specific?
-It would be less dangerous for people who read the research to
misunderstand the experiment
-It would also be useful if someone wants to replicate your research
-the more we can reproduce an experiment the more we can confirm the
conclusion
Variables
shyness
Definitions
How many times will you start a
conversation with someone or how
many times will a person raise their
hand?
Love
Placing a deep importance and
care in someone or something
Memory loss
Aggression
Irritability and contain angered
emotions,
-number of times that a specific
aggressive behaviour is found at
recess
-the number of seconds it takes for
a driver to honk their horn
Decision-making skills
-amount of seconds it takes for
someone to solve a problem
-start by checking the background of a topic, questions that were brought
up in the past, what is reliable, try to generalize the findings in order to
draw some conclusions,
Choosing Participants
● Population: the entire group that is of interest to researchers
● Sample: group of people studied in an experiment, used to stand in
for an entire group of people
○ Must represent the population
○ random selection – everyone in the population of interest has
an equal chance of being selected
○ Minimize sampling bias – selecting a group that is especially
likely to confirm your hypothesis
Selecting a research Methods
● Descriptive research: studies that allow researchers to demonstrate
a relationship between the variables of interest, without specifying a
causal relationship
○ Methods: naturalistic observations, case studies or Surveys
● Correlational: predictable relationship between two or more
variables
○ Method: correlation
● Experimental research: controlled observation in which researchers
manipulate the presence or amount of the independent variable to
see what effect it has on the dependent variable
○ Method: Experiment
○
● Tools: observation grids, questionnaires, interviews, tests, etc.
Class Activity
Experiments:
-used to test out our hypotheses
-making observations in controlled settings
-key words; dependent and independent variables
-get specific results
-advantage; results in new facts and not based on observation
-disadvantage; randomized selection can be more biased
-An example of the method: picking 10 kids out of our class and counting
how many times they go on their phones to test out the kids' attention
spans
Correlations:
Research if correlations evaluate relationships between 2 variables
without input from the researcher,
Advantage: data is unbiased
-the point is to find a pattern between information
3 types; positive correlations, when 1 variable goes up the other goes up
as well, one goes up and the other goes down, zero when variable 1 goes
up or down it has zero correlation on v2
Disadvantage; doesn't explain the data
Advantage; easily organized visually so you can easily comprehend it,
effective for conveying numbers
For example, for a positive correlation as height goes up, and weight goes
up, we observe this in nature, for negative the more you intake coffee, the
less tired you are, for zero correlation the taller you have no effect on
one’s height
Survey;
-ask you closed questions, often yes or no
-use question good to get a lot of data a lot of answers
-can be unreliable if people are lying and trying to fit into societal norms
-studies the correlation between 2 variables, can tell if its positive or
negative, can be biased
Case study
-very indepth study of a gave subject in a real world situation
-advantage; can collect data in many different ways, can see relationships
between phenomena and people
-disadvantage; expensive and time consuming
Statistical methods
● Statistics: describe and measure relationships between variables
● Descriptive research – correlations indicate if there is a relationship
between the variables
● Experimental research – statistics indicate if the hypothesis has
been supported or if there is a meaningful difference between the
groups
Correlation
show how 2 or more things are related to each other (e.g., study time
and memory errors)
● Correlation coefficient: the strength and nature of the relationship
between 2 variables (-1.00 to +1.00)
● Positive correlation: when one variable increases, the other
increases
● Negative correlation: when one variable increases, the other
decreases
*Can’t be used to draw conclusions about the causal relationships
When we look at experiments
Descriptive statistics: describe the data
Compare differences between groups
Mean: average of all scores
Standard deviation (SD): how much the participants’ scores vary
from one another
Bell-shaped: most of the scores are located near the center
and is symmetrical
Large SD=more spread (blue)
Small SD=tightly clustered (red)
Inferential statistics – help to draw conclusions about the data
Statistical significance
qualifies a result that would be improbable to obtain by chance
To determines if the result is significant, statistical tests are used.
The test indicates whether the result can be obtained randomly
If the threshold is more than 0.05, the result is not significant
Greater probability that the observed difference is due to
chance
p<0.05= significant
Replication – repeated testing of a hypothesis to ensure results from one
experiment are not due to chance
Also, use different types of research
If findings are similar, confidence in research results increases
Allows theories and laws to be developed
Share research findings through scientific journal articles
The scientific method
1. The background: question, literature review
2. The hypothesis: state prediction, id variables
3. Research design: participants, research design
4. Analyzing data
5. Review, publish and replicate
6. Build a theory
Ethical Research
● Code of Ethics – Canadian Psychological Association
● Research Ethics Boards (REBs) are considered the ethics police. They
are a research oversight group that evaluates research to protect
the rights of participants in the study.
● Ethical guidelines:
○ Obtain informed consent – obtaining permission from the
participant after they know what the study involves and the
risks and benefits of participating
○ Protect participants from harm and discomfort
○ Protect confidentiality
○ Participation must be voluntary
○ Deception or incomplete disclosure
○ Provide complete debriefing – revealing to participants any
information that was withheld during the study
● Select an (1) option from the following. Share with the group your
work on Moodle : Forum-End of Modul Activity
1. Design Studies:
● Goal: illustrate the difference between correlational and
experimental research
○ Demonstrate that most research questions are amenable to
both types of design
○ Examples of research questions: Does caffeine improve
studying? Can meditation improve the level of stress? Can
music enhance mood? Does screen time decrease sleep
quality?
● Come up with both an experimental and a correlational study to
address the research question.
● Develop specific hypotheses, operational definitions of the relevant
variables.
. Indigenous experiences
● Read: Indigenous Ways of Understanding (p. 50 of your textbook)
● Reflect and Answer the following question:
○ What sorts of things should researchers do in order to
collaborate with rather than simply study diverse indigenous
cultures?
○ What are some of the benefits and challenges of conducting
research with Indigenous groups?
● Is it feasible for researchers who do not belong to an Indigenous
community to conduct research without collaborators?
○ What is the Mi’kmaw concept of “two-eyed seeing” and what
implications would using it have for research involving
indigenous people.
3. Job Analysis: Research and Statistics
● View Wiley video:
https://education.wiley.com/content/Comer_Psychology_Around_Us_
4CE/media/simulations/videos/final-io-9.html
● Reflect and Answer the following question:
○ What kind of research would you do in order to develop a
description of a particular job so that the organization with
the job could look for someone to fill it?
○ What sorts of research would you need to do and what sorts of
research methods would you use to find a good candidate for
a participant job like the one noted in the previous question?
○ For Industrial and Organizational (I/O) psychologists helping
organizations find and hire new employees, what sorts of
ethical issues/concerns should they regularly consider?
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