KIN 251 Lecture Notes - Lecture 4: Body Fat Percentage, Statistical Significance, Test Statistic

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lemondog658

12 Feb 2020

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From observing the body composition lab analysis excel spreadsheet, it can be seen that there is a relationship between bmi and percent body fat measured using bia; which can be reported as (r=0. 53, p=0. 003). However, this does not mean that one causes the other, because correlation does not equal causation, it can only be said how strongly the two variables are related to one another. The first statistic, which is the r" value, tells us how strongly the two variables, bmi and percent fat (bia), are related. In this case, r=0. 53, indicating that there is a strong relationship between the two variables. The r" values also tells us how the variables are related, or in other words, the direction. In this case, p=0. 003, indicating that there is a statistically significant relationship between bmi and perfect fat (bia). In other words, it indicates that the results would occur by chance 0. 3% of the time.

Related Questions

Psychology of adulthood and aging;

Here is a question related to adulthood/aging that you think science canât answer:

Does age determine adulthood?

Then you will try to demonstrate how science could answer a related question. (Change the question to): When should a person be considered an adult?

Objectives:

Students should be able to speculate as to why two variables might be correlated, identify what a correlation between variables is not telling us, and anticipate what kind of research studies could further clarify a correlation between variables.

Students should be able to define operationalization, hypothesis, and be able to describe the scientific method by which psychologists study adulthood and aging.

a-First psychological variable

b-Give it a label

c-Briefly describe this variable.

Describe how this variable can be operationalized (that is, describe exactly how you determine which category or which value of the variable applies to a particular person or situation).

Second variable that you believe is related to your first variable.

a-Give it a label.

b-Briefly describe this variable.

c-Describe how this variable can be operationalized.

Once the variables are defined, the next step is to predict the relationship between these two variables by writing a hypothesis. A hypothesis is a prediction about the relationship between two or more variables. For now, assume that there is a causal relationship between the two variables even if it would be impossible or unethical to test a causal hypothesis. This means that changing a personâs score on one of the variables (the independent variable) would cause the personâs score on the other variable (the dependent variable) to change. For example, you might say, âIncreasing the amount of violent television that a person watches will cause that person to exhibit more aggressive behaviors.â

I need help with this homework, it's due @ 8am please and thank you

esources except othe peopie. Sing what you know the x direction. Show that the about the momentum operator along ion e A is an eigenfunction of the momentum operator in the xdirection with an eig pw etermine whether the eand Dz -th commute. In other words, operators please evaluate the commutator e nsider the 1-dimensional time dependent Schrodinger equation, ih 2m ax2 where y is a function at above, function only of x). Use the of separation of variables technique to recover the time independent Schroinger equation. Show 4. and justify your steps where appropriate. with the Consider a oscillator with and force constant k, and a particle same simple harmonic mass m mass in a one-dimensional box of length L a. What is the relationship between kandLsuch that the zero-point (ground state) energies of these two systems will be the same? o. If m is equal to the mass of a 1H atom, what is the value of k (in N/m) corrsesponding to L 1.4 nm? 5. If a Ha molecule rotates in the plane of a crystalline surface (in a chemisorption situation), it can approximated as a two-dimensional rigid rotor calculate (in k/mo) the lowest energy rotation hydrogen atom with a value of requal to the bond length of H2, o 7416 angrstoms. in the far infrared spectrum of HysBr, there is a series of lines separated by 16.72 cm 1. Calculate the values of the moment of inertia and the internuclear separation in H79Br. The Jao and J-1 transition for carbon monoxide (12cieo) occurs at 1.153x10 MHz. Calculate the value of the bond length in carbon monoxide. Show that the harmonic oscillator wave functions are alternately even and odd functions of x because the Hamiltonian operator obeys the relation A(x) A(-x). Define a reflection operator R by Ru(x) show that R is linear and that it commutes with A. Show also that the eigenvalues of R are t1. What are its eigenfunctions? Show that the harmonic-oscillator wave functions are eigenfunctions of R. Note that they are eigenfunctions of both H and R. What does this observation say about A and R

KIN 251 Lecture Notes - Lecture 4: Body Fat Percentage, Statistical Significance, Test Statistic

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