/*! This file is auto-generated */ .wp-block-button__link{color:#fff;background-color:#32373c;border-radius:9999px;box-shadow:none;text-decoration:none;padding:calc(.667em + 2px) calc(1.333em + 2px);font-size:1.125em}.wp-block-file__button{background:#32373c;color:#fff;text-decoration:none} Problem 79 According to the article "Effect... [FREE SOLUTION] | 91Ó°ÊÓ

91Ó°ÊÓ

According to the article "Effect of Preparation Methods on Total Fat Content, Moisture Content, and Sensory Characteristics of Breaded Chicken Nuggets and Beef Steak Fingers" (Family and Consumer Sciences Research journal \(11999 \mathrm{~J}: 18-27),\) sensory tests were conducted using 40 college student volunteers at Texas Women's University. Give three reasons, apart from the relatively small sample size, why this sample may not be ideal as the basis for generalizing to the population of all college students.

Short Answer

Expert verified
Three reasons could be demographic differences, geographic/local tastes, and specific academic influences at Texas Women's University that may not reflect the diverse range of all college students.

Step by step solution

01

Consider demographic factors

One could argue that there could potentially be demographic differences between the sample and the population of all college students. For example, Texas Women's University could have a disproportionate number of female students, students of a certain race, or students from a certain socio-economic background.
02

Consider geographic factors

Geographic factors could also create a bias. Since the sample consisted of students from Texas Women's University, regional tastes specific to Texas may not reflect the tastes of college students from other parts of the country or international students.
03

Consider academic factors

Academic factors could also influence food choices and preferences. For example, students at Texas Women's University may be enrolled predominantly in particular programs or fields of study that could influence their choices or attitudes towards food, and these may not be representative of the diverse academic interests across all college students.

Unlock Step-by-Step Solutions & Ace Your Exams!

  • Full Textbook Solutions

    Get detailed explanations and key concepts

  • Unlimited Al creation

    Al flashcards, explanations, exams and more...

  • Ads-free access

    To over 500 millions flashcards

  • Money-back guarantee

    We refund you if you fail your exam.

Over 30 million students worldwide already upgrade their learning with 91Ó°ÊÓ!

Key Concepts

These are the key concepts you need to understand to accurately answer the question.

Demographic Factors
Understanding demographic factors is crucial when considering the representation of a sample. Demographic factors include characteristics such as gender, race, age, and socio-economic status. In our example, Texas Women's University may have an uneven demographic spread which doesn't match the broader college student population.
  • For instance, given the name, the university likely has a higher proportion of female students compared to a mixed-gender university.
  • There could be predominant racial backgrounds or socio-economic groups that don't align with those of all college students.
These imbalances mean that the sample collected for the sensory test might not accurately capture the views and preferences of a diversified student body nationwide.
This matters because demographic diversity impacts perceptions and preferences, particularly in areas customary or culturally related, such as food.
It's the reason why ensuring representation from all demographics within a given larger population helps produce more generalized and applicable results.
Geographic Factors
Geographic factors refer to how the location or regional characteristics of the sample affect its representativeness. Students from Texas Women's University bring unique regional influences that may diverge from students in other locations.
  • Regional preferences might lead to different sensory responses, influenced by regional cuisine or customary food practices.
  • The university's location in Texas can significantly affect students' experiences and expectations regarding food due to local culinary customs.
  • Climate and geography can contribute to regional eating habits that may not be the same in other states or countries.
Such geographic biases make it difficult to generalize findings to a global or even national level, as they don't account for the diversity in culture and climate influences across other campuses.
Thus, a more geographically diverse sample offers broader insights, capturing the subtle taste preferences that differ regionally. Including participants from varying locales reduces the risk of skewed data based solely on students from one specific region.
Academic Factors
Academic factors address how the educational environment and field of study can impact students' perspectives and decisions, potentially affecting sensory preferences.
  • Students at Texas Women's University may primarily enroll in specific disciplines, providing a bias in the study's findings.
  • Fields requiring nutrition or health awareness might lead to participants with pre-formed biases or preferences.
  • Similarly, science-focused students might approach the test more analytically than artistically inclined students.
Different disciplines present varied priorities and perceptions about food, which can affect taste testing results significantly.
Broader academic diversity means accounting for and balancing these diverse influences, offering a truer picture of preferences in a multi-disciplinary student body. Without considering such academic diversity, recommendations based on the study might fail to resonate with or apply to students with different educational experiences or priorities.
Ensuring participants represent various fields of study enriches the results, making them more applicable to all college cohorts.

One App. One Place for Learning.

All the tools & learning materials you need for study success - in one app.

Get started for free

Most popular questions from this chapter

Doctors have expressed concern about young women drinking large amounts of soda and about their decreased consumption of milk (“Teenaged Girls, Carbonated Beverage Consumption, and Bone Fractures," Archives of Pediatric and Adolescent Medicine \([2000]: 610-613) .\) In parts \((a)-(d),\) construct two questions that might be included in a survey of teenage girls. Each question should include possible responses from which the respondent can select. (Note: The questions as written are vague. Your task is to clarify the questions for use in a survey, not just to change the syntax!) a. How much "cola" beverage does the respondent consume? b. How much milk (and milk products) is consumed by the respondent? c. How physically active is the respondent? d. What is the respondent's history of bone fractures?

In an experiment to compare two different surgical procedures for hernia repair (“A Single-Blinded, Randomized Comparison of Laparoscopic Versus Open Hernia Repair in Children," Pediatrics [2009]: 332- 336), 89 children were assigned at random to one of the two surgical methods. The methods studied were laparoscopic repair and open repair. In laparoscopic repair, three small incisions are made and the surgeon works through these incisions with the aid of a small camera that is inserted through one of the incisions. In the open repair, a larger incision is used to open the abdomen. One of the response variables in this study was the amount of medication that was given after the surgery for the control of pain and nausea. The paper states "For postoperative pain, rescue fentanyl \((1 \mu \mathrm{g} / \mathrm{kg})\) and for nausea, ondansetron \((0.1 \mathrm{mg} / \mathrm{kg})\) were given as judged necessary by the attending nurse blinded to the operative approach." a. Why do you think it was important that the nurse who administered the medications did not know which type of surgery was performed? b. Explain why it was not possible for this experiment to be double-blind.

A tropical forest survey conducted by Conservation International included the following statements in the material that accompanied the survey: "A massive change is burning its way through the earth's environment." "The band of tropical forests that encircle the earth is being cut and burned to the ground at an alarming rate." "Never in history has mankind inflicted such sweeping changes on our planet as the clearing of rain forest taking place right now!" The survey that followed included the questions given in Parts (a)-(d) below. For each of these questions, identify a word or phrase that might affect the response and possibly bias the results of any analysis of the responses. a. "Did you know that the world's tropical forests are being destroyed at the rate of 80 acres per minute?" b. "Considering what you know about vanishing tropical forests, how would you rate the problem?" c. "Do you think we have an obligation to prevent the man-made extinction of animal and plant species?" d. "Based on what you know now, do you think there is a link between the destruction of tropical forests and changes in the earth's atmosphere?"

"Fruit Juice May Be Fueling Pudgy Preschoolers, Study Says" is the title of an article that appeared in the San Luis Obispo Tribune (February 27, 2005). This article describes a study that found that for 3 - and 4-year-olds, drinking something sweet once or twice a day doubled the risk of being seriously overweight one year later. The authors of the study state Total energy may be a confounder if consumption of sweet drinks is a marker for other dietary factors associated with overweight ( Pediatrics, November 2005\()\). Give an example of a dietary factor that might be one of the potentially confounding variables the study authors are worried about.

For each of the situations described, state whether the sampling procedure is simple random sampling, stratified random sampling, cluster sampling, systematic sampling, or convenience sampling. a. All first-year students at a university are enrolled in 1 of 30 sections of a seminar course. To select a sample of freshmen at this university, a researcher selects four sections of the seminar course at random from the 30 sections and all students in the four selected sections are included in the sample. b. To obtain a sample of students, faculty, and staff at a university, a researcher randomly selects 50 faculty members from a list of faculty, 100 students from a list of students, and 30 staff members from a list of staff. c. A university researcher obtains a sample of students at his university by using the 85 students enrolled in his Psychology 101 class. d. To obtain a sample of the seniors at a particular high school, a researcher writes the name of each senior on a slip of paper, places the slips in a box and mixes them, and then selects 10 slips. The students whose names are on the selected slips of paper are included in the sample. e. To obtain a sample of those attending a basketball game, a researcher selects the 24 th person through the door. Then, every 50 th person after that is also included in the sample.

See all solutions

Recommended explanations on Math Textbooks

View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Study anywhere. Anytime. Across all devices.