KIN 310 Test 1
generalization
(psychology) transfer of a response learned to one stimulus to a similar stimulus
Scientific Method Steps
1. Developing the problem- defining and delimiting the problem through identification of independent and dependent variable 2. formulating the hypotheses 3. Gathering the data 4. Analyzing and interpreting the results DFGA
____ lbs per year or _____ cal/day is what the average adult gains and for the 90th percentile it is ____ cal/ day preventing wt gain would have to only increase _____ cal/ day expenditure or decrease ______ cal per day for consumption
1.8 15 50 100 100
_____ of candidates for bariatric surgery have Axis I psychiatric disorder
1/2 - 2/3
Smokers will die ____ years younger?
10
_______ - _________ deaths/ year US obeasity
112,000 - 365,000
The goal is to get the obesity to less than __% by 2010?
15
___% of kids 6-19 are considered overweight
16% (9 million) youth
prevention suggests mean intake increased by ______ cal/ day in American men and _____ cal/ day in american women from 1971-2000
168 335
Amish ______ steps/ day and ___% obesity for men and women
18,000 14,000 0 9
_____ age group increasing the in extreme obesity
18-29
Framingham Heart Study
1948 group of scientists began a longitudinal study on over 5000 residents of a town in Massachusettes. to collect info on heart disease and risk factors over 50 years, discovered what we know now about dietary fat, cholestrol levels, smoking, wt, elevated BP and heart disease
What are the physical activity guidelines for adults?
2.5 hrs of moderate intensity aerobic activity/ week (walk, dancing, gardening). 1.25 of vigorous intensity workout aerobic, they should be at least 10 minutes and spread out. For extensive health benefits. 5hrs and 2.5 also strength training 2 or more days per week
Obesity in 1990 when from __% to __% by 2000
23 30
approximately ____ of extremely obese adults have at least 1 obesity-related medical comorbidity
3/4
___-___% higher are health care cost of obese adult compared to non-obease
36-39
___% of adults are extremely obese
4.8
10,ooo steps/ day is equivalent to
45-60 minutes of moderate activity plus an active lifestyle
Average now is _____ steps/ day and recommended is ______ steps/ day?
5,300 10,000
_-_% total annual medical expenditures in the US are due to obesity
5-7
The JAMA found that in the NFL __% are obese and __% are overweight using BMI
57 97
More than ___ percent of adults do not achieve the recommended amount of regular physical activity. In fact ___ percent of all adults are not active at all
60, 25
____% of adults are overweight/ obese and ____% are obese also ___% of children are overweight or obese
68, 30, 32
____ min of PA to prevent wait gan and ______ to manage wt
90 60
Inference
A conclusion one can draw from the presented details.
metabolic syndrom
A medical condition characterized by a combination of high blood cholesterol, high blood pressure, abdominal fat deposits and large waist circumference, and insulin resistance or type 2 diabetes.
operational definition
A statement of the procedures used to define research variables. observable phenomenon that enables the researcher to test empirically wether or not the predicted outcomes can be supported. Fatigue, exercise, body comp. must be valid do they measure what they are supposed to? and reliable
______ discovered BMI
Adolphe Quetelet
BRFSS
Behavioral risk factor surveillance system
List some studies discussed in article
Debunking therapeutic touch- an alternative-medicine technique taut at many nursing schools. Linda and Emily Rosa Editorial NEJM- saying that they benefits of the anti-obesity drug dexfenfluramine (Redux) outweighed the risk and the reporter also served as a consultant of the manufacturers and distributer. it caused heart damage and the FDA pulled it off the market
Moris et al
Epidemiology of Uniforms
What are the 4 types of research?
Experimental- examines cause and effect relationship between variables Observational- gather info/ data about the world as it is Applied- answers immediate problems, human subjects, real world settings lacks control Basic- deals with theoretical issues, animal subjects, lab setting, carefully controlled, results lack application
What two journals does the Hippocratic wars article focus on?
JAMA- The Journal of the American Medicine Association. Dr. George Lundberg NEJM- New England Journal of Medicine. Dr. Jerome Kassirer
Subjective measure
Measures based on individual perceptions
NHANES
National Health and nutrition examination survey
Hindsight bias
The tendency to believe, after learning an outcome, that one would have foreseen it
Non-directional hypothesis
There will be a difference in the correlation but direction of correlation not stated. two-tailed
What are the 4 ways paradigm influences the scientific process?
What is studied and researched. the type of questions that are asked, the exact structure and nature of the questions, how the results of any research are interpreted, it effects funding (bonus)
Directional hypothesis
When you have an idea which way the experiment will go because there is already some background information on the topic. one-tailed
Extraneous (confounding) Variable
a factor that could affect the relationship between the independent and dependent variables but that is not included or controlled
delimitation
a limitation imposed by the researcher in the scope of the study; a choice that the researcher makes to define a workable research problem.
Body Mass Index
a measure of body fat based on height and weight
Limitation
a possible shortcoming or influence that cannot be controlled or is the result of delimitations imposed by he researcher
Science
a process of carful/ systematic inquiry
Measurement
a standard used for the quantitative comparison of properties
Research
a systematic attempt to solve problems, a scientific/ scholarly investigation, close/ careful study of a topic
Deductive reasoning starts with
a theory
Paradigm
a worldview underlying the theories and methodology of a particular scientific subject
Internet
accessible, broad in scope, unreliable
Ingelfinger Rule
allows journals to keep the flow of information by stating that the journal will not publish information that has appeared elsewhere.
null hypotesis predicts no difference between groups, the ________ hypothesis predicts either a simple difference (_______) or a difference in a particular direction
alternative two-tailed hypothesis one-tailed hypothesis
Research second definition
an organized process of collecting knowledge.
list some causes of obesity
ansestors developed preference for high fat and sugar food. lower cost makes these foods readily available to most americans PA not needed for substance. technology, suburb
Reductionism
assumes that complex behavior can be reduced, analyzed, explained as parts that can be put back together to understand the whole
High quality research
based on others work, can be replicated and generalized into other settings, based on some logical rationale, tied to theory, doable, is cyclic in nature, incremental, done for the betterment of society
parts of a hypothesis
based on theory and previous research findings, state a relationship between at least two variables, if a relationship is only expected in a certain population freelance to population should be made, simple and clear with no vague statements or terms, is testable, have capability of being refuted, is related to techniques of design procedure and statistical analysis, uses the same terminology for the variables
Why do people expect swans to be white?
because that is what experience tells them.
Theory
belief/ assumption about causal relationship between variables that serve to explain phenomena. Also they lead to civil laws and help us test hypothesis
In what states was physical inactivity lower in 23.2% in more than 70% of its counties
california, colorado, Hawaii, Minnesota, Oregon, Vermont, and Washington
categorical (moderator) variable
changes the strength of an effect or relationship between two variables
Book
comprehensive, substantive, information may be out of date depending on publicaiton
Pursuit of happiness
consuming more goods
Newspaper
current, broad in scope, non-substatitive
empirical
data is collected to base decisions on
_______ organizes info in a way to test theories, hypothesis generated
deductive reasoning
Purposes of research
describe, predict, control, explain DPCE
Paradigm crisis phenomenon
development of discrepancies in a paradigm leading to proposals of a new paradigm that better explains the data
Factors that predict risk for Chronic Disease
diet, physical activity, BMI, waist circumference, Blood pressure, blood sugar level, cholesterol level, family history of disease
internal validity
do the results represent what really happened
logical
examination of products used allows evaluation of conclusions
What is the ultimate goal of science
formation of theory based upon synthesis and interpretation of facts/ information
Personal liberty
freedom to choose
What is the main goal of research?
gather and interpret information to answer a question.
laws-
general relation proved (assumed) to hold between mathematical and logical expressions.
Deductive reasoning
general to specific DGS (Dogs)
Factors influencing energy regulation
hormones, peptides, nutrients, uncoupling proteins, neural regulatory substances
The following health issues arise with obesity
hypertension, dyslipidemia, Type II diabetes, coronary heart disease, stroke, gall bladder disease, osteoarthritis, sleep apnea and respiratory problems, and some cancers
Research hypothesis
hypothesis deduced from theory or induced from empirical studies that is based upon logical reasoning and predicts the outcome of the study
Null hypothesis
hypothesis used primarily in the statistical test for the reliability of the results that says that there is no difference among treatments
systematic
identify and label variables and design ways to test variables
Framingham Heart Study
identify the common factors or characteristics that contribute to CVD by following its development over a long period of time in a large group of participants who had not yet developed overt symptoms of CVD or suffered a heart attack. This is a type of inductive reasoning
Biologically inactive
immediate reward for over-eating/ under working out.
General Idea of Extreme obesity
increase in prevelence of extreme obesity is a major public health problem. The risk of comorbidities of obesity increase with an increase in BMI. Health care costs associatioed with obesity are greater than any other medical condition. number of patients seeking bariatric surgery is increaseing
Power (null hypothesis)
increasing the likelihood of rejecting a false null hypothesis for a sample
Genetic factors contributing to extreme obesity
leptin deficiency, Prader-Willi and Laurence-Moon Biedl syndrom
Obesity first article main idea
making lasting change on obesity is going to require people to become more involved in communities, families, work and school. It is caused by loss of social capital, by spending more time in front of TV's and in gated communities living solitary lives. Just as further wt gain can be halted by changing small things in daily life, restoring the social capital we will need to make these changes normal behavior within our culture can be accomplished by getting involved in small things
Obesity is unintended consequence of
many social, political, and economic decisions made for many reasons
What are some ways to control (control variable)
match subjects based on some criterion, randomly select, limit group based on certain variables (age, wt, fitness level)
research design
method and structure of an investigation chosen by the researcher to conduct data collection and analysis
conceptional definition
more general like PA and operational like 30 vo2 max test 4 days a week
Normal science
objective manner of study grounded in the natural sciences that is systematic, logical, empirical, reductive, and replicable.
Perfect induction
observe every member of a group to make a conclusion
Imperfect induction
observe small sample and generate conclusion from the sample about the population as a whole
Independent variable
one you have control over and that you can manipulate, usually what you think will affect the dependent variable. IT FORMS OR DEFINES GROUPS aka "treatment variables" due to their manipulation and exposure to groups and individuals at the discretion of the researcher
Social capital
our engagement collectively in civic matters and connectivity with one another
Magazine
popular, focused, due to limited space coverage is limited to only most current info
Evaluation of Theories
precision- how accurately does a theory explain a phenomena simplicity- how many special conditions/ qualifiers must be met Testability- how many observable methods can be used to test a theory.
replicable
process recorded so it can be reproduced
America 0on the move
promotes small daily changes to close the energy gap
Mayer er al
rats/ men and regulation of body wt was easier when the PA was above some threshold "normal activity range" below this was the sedentary zone.
A good hypothesis posits a
relationship among variables
Journal
scholarly, authoritative, due to limited space coverage is limited to only most current info
The research process
selecting a problem and asking the question, formulating the hypothesis, reviewing relevant literature on the topic, listing the measure to be sued, describing the subjects, constructing a research design, constructing measurement devices, analysis of the data, generating conclusions, writing the research report
sedentary subjects
sit for 2 1/2 hrs more per day than lean subjects, which translates to a mean decrease in energy expenditure of 350 kcal/ day
Inductive reasoning
specific to general ISG (I is G)
Objective measure
standard sets of questions that are scored using an agreed-on scoring key
Good life
steady job and less physical labor, abundant and affordable food
What are the 5 characteristics of research?
systematic, logical, empirical, reductive, replicable SLERR
reductive
take individual events and use to establish relations
What are the sources of evidence in order of increasing reliability
tenacity (superstition), intuition (common senses), authority, personal experience, deductive reasoning (rationalistic), science inquiry (empirical)
Hypothesis
the anticipated outcome of a study or experiment.
Occam's razor
the most simple explanation is the most likely explanation
We always test what?
the null hypothesis
Control variable
the researcher attempts to control as much as possible to limit possible effects or explanations. it is the variable that may have an impact on the dependent variable.
Kinesiology
the study of movement
Why do we do research?
to find the truth
Why do research?
to search for truths and develop laws
Number of kids that are overweight ____ since 1980
tripled
Extreme obesity has increased _____ as fast as obesity itself
twice
Black swans
unpredictable event that defies prediction and is an outlier
The food pyramid
used to recommend that you should eat more cereals than fruit and vegetables. Also potatoes and green veggies were seen as interchangeable
Dependent variable
what you measure in the experiment and what is affected during the experiment. TYPICALLY MEASURED TO SEE WHAT HAPPENED IN EXPERIMENT OR DIFFERENCES IN GROUPS