General Psychology

Home > Exam Review > Research Methods


Research Methods


Main Ideas:

Concept and Operational definition

* Breaking apart a concept in subdimensions

* Developing different kinds of scales and measures

Main Idea: different kinds of studies give you different kinds of information.
A. Four types of studies: descriptive, correlational (survey), experiment, naturalistic observation.
Be able to describe each, what are the different purposes? (how is the information from each different?)


B. (Identify these) see how they are different from each other.
How do these concepts effect what kinds of information you get?


Variable & Operational definition, Theory & Hypothesis, Experiment & control conditions, Manipulation of variable

Analyzing group differences -- different vs. better/worse, remember the individual

Other: Random assignment, random sampling, Independent variable, Dependent variable

Methods - Example Questions


Brad and Max are interested in studying the effects of Running Start programs on kid's academic success later in life. They record whether or not each kid has been in the program, and what their grades are over the next 5 years.

Identify      1. What type of study is this? (case/descriptive, correlational, experimental, natural)
Apply         2.  Using same or similar variables as Brad & Max, describe a different type of study.
Compare   3. Which type of study requires the researcher to identify the operational definitions before the study?


7.         Pick one of the following concepts and do (a) and (b) with it:

            Chunking (p. 220-223)

            Primary or secondary appraisal of a stressor (p. 535-537)

            Altruism (p. 677-678)

            Introversion – Extroversion as a part of personality (p. 481-483)

            Pick one defense mechanism (p. 485-489 and 550-554)

            The dissonance (2nd) stage of identity development (p.353-359, esp. 354, 357)

(a) Describe what the concept is and describe a related concept that is similar, but not the same (not another concept from this list).  Like we did with the parts of creativity.

(b) Describe two different operational definitions, one for each of the two similar concepts:  one way to measure it.  Include specific questions (like survey questions) or kinds of observations or an experiment to measure it.  For example, creativity might be measured by giving everyone a curved a line and giving them 5 minutes to make a drawing out of it; then you judge the creativity of the drawing.

Notes: for (a) it’s like with creativity, when we talk about the different parts/dimensions of it.  The related concept for creativity might be artistic skill.


1.         Make up a scale for one of the variables in your research project: describe the concept and the operational definition.  Break it into parts (dimensions), like we did with creativity (original, thoughtful, etc.)  List out the scale (from low to high, from 1 to 9) and give both descriptions and example behaviors/thoughts/feelings for 3 parts of the scale.

Notes: for part (a) it’s like with creativity, when we talk about the different parts/dimensions of it.  The related concept for creativity might be artistic skill.


2. For the project described below, identify the following: the variable that they are studying the effect on – describe the concept and give an operational definition for it.  Name one variable they are studying that affects the first variable you mentioned.  Again, describe the concept and give an operational definition for it.  Choose one type of study (experiment, correlational, naturalistic observation, case) and describe how you would do a study for this topic.

For our research project we will be looking at the effects of sleep deprivation on humans.  We intend to show, through research, the effects sleep deprivation has on several different physical as well as psychosocial factors.  We intend to focus on the effect sleep deprivation has on cognition, personal and public safety, as well as overall health for the individual as well as the community as a whole.  We expect to find that those who are sleep deprived are at much greater risk for collisions, poor grades in school, poor performance on the job, have weaker immune systems, and have an overall poorer quality of life than those who get an adequate amount of sleep.

Notes: for good conceptual definition, review information in the textbook on that topic.


7 Name a variable and give an example of 2 different operational definitions for it.


3. Pick one of the following concepts and do (a) and (b) with it:
Chunking (p. 220-223)
Primary or secondary appraisal of a stressor (p. 535-537)
Altruism (p. 677-678)
Introversion , Extroversion as a part of personality (p. 481-483)
Pick one defense mechanism (p. 485-489 and 550-554)
The dissonance (2nd) stage of identity development (p.353-359, esp. 354, 357)

Describe what the concept is and describe a related concept that is similar, but not the same (not another concept from this list). Like we did with the parts of creativity.
Describe one operational definition : one way to measure it. Specific questions (like survey questions) or kinds of observations or an experiment to measure it. For example, creativity might be measured by giving everyone a curved a line and giving them 5 minutes to make a drawing out of it; then you judge the creativity of the drawing.


2. I am doing a report on the stress of teens that come from a single parent home vs. a two-parent home. In Socioeconomic perspectives the lower class tend to have different and more stress that the middle class family. The lower class has pressure over paying bill and feeding their children and the middle class can do those things so they don't stress about it. In the Gender perspective the males and females have very different coping strategies. Females can talk about their stress by going to a friend where males feel as though that is a sign of weakness. My hypothesis is that males that come from a single parent home will have more stress because they feel the need to contribute to the family. I believe this is what the outcome of my project will be because single parent homes are more likely to be low-income families. Children that come from homes like this witness their parents struggle whereas the children from a two-parent home never have to worry about how the bill will be paid or where there next meal is coming from.

For this project, identify the following: the variable that they are studying the effect on , describe the concept and give an operational definition for it. One variable they are studying that affects the first variable you mentioned. Again, describe the concept and give an operational definition for it. Choose one type of study (experiment, correlational, naturalistic observation, case) and describe how you would do a study for this topic.


Veasna and Sarah believe that people who use the right hemisphere of their brain more are more creative. As it turns out, some kinds of math like geometry are processed more in the right hemisphere (seeing things in space), while other kinds of math like algebra are processed more in the left hemisphere. So they ask 50 people which type of math was easier, algebra or geometry, and ask them to draw a picture. Veasna and Sarah decide how creative it is by judging how different it is from other things they've seen using the scale below:

Not Creative

 

 

 

More Creative

1

2

3

4

5

just like something they've seen

 

seen some things sort of like it

 

never seen anything like it before


Name (a) the type of study it is (experiment, etc), (b) why you think so, (c) the hypothesis, (d) the main variables in the hypothesis, listed in the "from _to_"


Hypotheses:
1. People who are distracted by thinking about themselves will misremember (or fill in the gaps) in a story they heard more than people who are distracted by recalling a specific non-autobiographical thing.
2. People will fill in the gaps in the story with information from their personal and cultural scripts.

Study: We recruit 60 people. For each person, we read the story of two people going on a date to them (see p. 223 for story). We randomly choose 30 people and ask them how their day was, what happened, how they felt, etc. (to get them thinking about themselves) for three minutes. Then we ask them nine questions about the story, such as "what time did John arrive?" and "What part of the date did Mary like best?" For the other 30 people, we ask them to sing the "ABC" song (specific non-autobiographical thing) for three minutes.
Use the above example for the next 2 questions.
1. Name the type of study this most closely fits (experiment, descriptive, etc.) and describe one part of the study above that makes it the type of study you chose.
2. Describe one variable in the study above (in the "varies from ... to ..." way we did in class), and describe one operational definition for a variable. Name some of the levels of the variable.


3. Design your own study. Here's a hypothesis: people who actively chunk material while they are learning it remember more than those who don't actively chunk the material. Design a case study or naturalistic observation to study this hypothesis. Be sure to name which type of study and a couple of variables, including how they are operationally defined.


Hypotheses: Children who see cooperative role models, (TV shows like "Mr. Rogers' Neighborhood" or "Barney") behave in more cooperative ways. Children's environment affects their behavior.

Study: Researcher go to playgrounds in different elementary schools and study whichever kids are on the playground those days. They compare children that appear to be the same age. They note any comments from particular programs (e.g. the Barney song) as a measure of which shows kids watch. They notice what types of games kids play, how they are started, cooperative behavior (e.g. giving ball to next kid, setting up order or lineup for turns) and uncooperative behavior (pushing, shoving, taking extra turns). They note how many teachers are present, how much and what types of interaction teachers have with kids. They look at the size of playground, types of equipment, and how they are arranged (e.g. many small activity areas to one big toy). They compare to see which types of playground settings promote most cooperative behavior.

Use the above example for the next 2 questions.
1. Name the type of study this most closely fits (experiment, descriptive, etc.) and describe one part of the study above that makes it the type of study you chose.
2. Describe one variable in the study above (in the "varies from ... to ..." way we did in class), and describe one operational definition for a variable .