HTHSCI 4NR3 Chapter Notes - Chapter 10: Nonprobability Sampling, Convenience Sampling, Quota Sampling

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jordananderson

11 Apr 2023

School

McMaster University

Department

Health Sciences

Course

HTHSCI 4NR3

Professor

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Document Summary

Chapter 10 research readings: sampling and data collection in quantitative studies. Sampling in quantitative research: quantitative researchers develop a sampling plan that specifies in advance how participants will be selected and how many to include. Evaluation of non-probability and probability sampling: probability sampling is the only viable method of obtaining representative samples and allows researchers to estimate the magnitude of sampling error, sampling error is the difference between population values (ex. Average age of population) and sample values (ex. Average age of the sample: non-probability samples are rarely representative of the population, are more feasible, so are done more often, there is often sampling bias. Biophysiologic measures: used for creating independent variables and for measuring dependent variables. In vivo measurements: those performed within or on living organisms (ex. If score differences are small reliability high (called stability/reproducibility: measurement error occurs when a person is asked to make scoring judgements and provide the measurements.

Related Questions

Match the following terms/acronyms to their definition below: clinical event committee (CEC), core laboratory, contract research organization (CRO), data safety and monitoring board (DSMB), endpoints, inclusion criteria, power.

Characteristics or indications that subjects must have in order to participate in the clinical trial

DSMB

The probability of detecting a meaningful difference, or effect, if one were to occur

CRO

Prospectively identified and quantifiable parameters that a study is designed to meet

Inclusion criteria

An independent organization that provides management services for clinical trials

CEC

An independent body that periodically reviews the results of clinical trials in the US to ensure that patients are not being inadvertently harmed by the study

Endpoints

An independent body that adjudicates clinical events and reports the results to both the trial investigators and the study sponsor

Power

An independent body that analyzes data or images from a clinical trial to make specialized quantitative measurements required by the trial protocol

Core laboratory

rafi_mokdad

If a drought occurred reducing the amount of available water, some trees, such as those with deep roots that can reach the water table, would be naturally selected over other trees. If the drought continued for an extended period of time, the tree population would likely evolve until most of the trees possessed drought-resistant characteristics.

Which of the following allows natural selection and evolution to occur?

A) All members of the population are phenotypically identical.

B) Using other plant parts instead of roots to absorb water from the ground.

C) Increasing the height of the water table (more water available to all the trees).

D) All members of the population have an identical genetic make-up.

E) There is variation among the trees and competition for resources.

Bro

In this checkpoint, use human population data and other evidence to make a connection between human population and the issue you have

Global Issues Network

CP2: Human Population Growth

[Student Name] [Class Block/Period]

Student Work: Making Connections

Student Work: Interpreting Population Pyramids

Self-Assessment: Making Connections and Inferences

Level

Rationale - Write a short paragraph justifying the numerical level score you chose using key terms from the rubric and examples from your work.

Self-Assessment: Interpreting Data/Info to Make Valid Claims

Level

Rationale - Write a short paragraph justifying the numerical level score you chose using key terms from the rubric and examples from your work.

Checkpoint Directions

Check for Resources and Activities under this checkpoint that will help you complete this checkpoint.

Write a connection between human population growth for each of the 5 environmental issues identified by GIN. There should be a clear cause and effect relationship identified for each.

Complete the activity in class, Power of Populations.

Choose a selection of population pyramids, global population graphs, and/or the demographic transition graph. Analyze each and then explain the connections between them.

Checkpoint Checklist

Done

These things must be done or included for this CP to be completed.

Use the rubric for additional guidance.

There is a clear and detailed cause and effect connection made between human population growth and each of the 5 GIN environmental issues. The explanations are clearly written in complete sentences.

Images of the data being analyzed are included and readable.

Each representation of data is analyzed.

Connections between the data are clearly explained.

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HTHSCI 4NR3 Chapter Notes - Chapter 10: Nonprobability Sampling, Convenience Sampling, Quota Sampling

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