Exam 2

a. true

The results of a qualitative study are referred to as findings: a. true b. false

b. False

A Null or Statistical Hypothesis is a statement of "difference," "association," or "treatment effect." a. True b. False

b. cluster random sampling

A sample of 400 people with diabetes was obtained by asking 20 diabetics care managers in 20 randomly selected large urban hospitals to randomly choose 20 Type 2 diabetes adults patients. Which sampling methods was used? a. simple random sampling b. cluster random sampling c. purposive sampling d. network sampling

a. simple random sampling

A sample of 650 Nurse Practitioners was randomly selected from a list of all Nurse Practitioners in the state of Texas for a Texas policy study. Which sampling method was used? a. simple random sampling b. cluster random sampling c. purposive sampling d. network sampling

a. When you reject the null hypothesis when the null hypothesis is true

A type I error is: a. When you reject the null hypothesis when the null hypothesis is true b. When you accept the null hypothesis when it is false c. When you reject the null hypothesis when it is false d. Only applicable to the research hypothesis

d. both systemic error and bias

An error the occurs consistently in one direction, such as a scale that weighs everyone two pounds more than their true weight, is known as a: a. random error b. systemic error c. bias d. both systemic error and bias

b. do not include control groups

Descriptive designs: a. do not manipulate variables b. do not include control groups c. may help develop theory f. all statements are correct

b. reject the null hypothesis

If the P-values of a t-test is less than 0.05, the researchers should__________________-. a. reject the research hypothesis b. reject the null hypothesis c. accept the research hypothesis d. accept the null hypothesis

c. Ordinal measurement

Measurement based on the Likert Scale would be an example: a. Ratio measurement b. Interval measurement c. Ordinal measurement d. Nominal measurement

a. True

Some Researchers use the terms concepts and constructs interchangeably. a. True b. False

d. variability

Standard deviation is an example of a measure of: a. central tendency b. range c. distribution d. variability

c. median

The center of a data set is called the: a. mean b. mode c. median d. none of the above

a. construct validity

Validity concerned with the fit between the researcher's operational definition and theoretical definition of the study variables is referred to as: a. construct validity b. concept validity c. external validity d. internal validity

c. research hypothesis and casual hypothesis

Which of the following appropriately describes this hypothesized that parental feeding strategies aimed at increasing children's familiarity with a novel food would result in a higher frequency of children consuming the novel food: a. research hypothesis and nondirectional hypothesis b. nulll hypothesis and casual hypothesis c. research hypothesis and casual hypothesis d. research hypothesis and associative hypothesis

a. low sodium diet

Which of the following is NOT a common extraneous variable in nutrition studies a. low sodium diet b. age c. gender d. nutrition knowledge e. socioeconomic status

d. Randomized control trials

Which of the following is NOT an example of Descriptive Quantitative Design? a. cross-sectional surveys b. comparative design c. correlations d. Randomized control trials

d. All of these would be used to ensure trustworthiness

Which of the following methods would NOT be used to ensure the trustworthiness of a qualitative research design study? a. following a specific research method b. triangulation c. frequent peer review d. All of these would be used to ensure trustworthiness

c. linear regression

Which of the following statistics would look at the association? a. repeated measure ANAVA b. Chi-square c. linear regression d. independent sample t-test

c. data regression

Which of the following would NOT be as method of data collection in a qualitative research study? a. focus group b. observation c. data regression d. document analysis

a.Independent variable

Which variable is often manipulated (not measured)? a.Independent variable b. dependent variable c. confounding variable d. extraneous variable

b. Type II error

You did not reject the null hypothesis. It is possible that you made a: a. Type I error b. Type II error c. Type I and Type II errors d. none of the above