21.In a scatter plot, when the dots are close together and fall in a relatively straight slanted line, what does this suggest?

Question 21 options:

a.A dispersal of data that should be discarded.

b. A curvilinear relationship.

c.A strong positive or negative relationship.

d. A weak positive or negative relationship.

22.The goal of a research study is to provide an accurate picture of the status or characteristics of a situation or phenomenon. This study is best described as:

Question 22 options:

a.Explanatory

b.Confirmatory

c.Predictive

d. Descriptive

23.The bar chart is usually used for nominal variables.

Question 23 options:

a. True

b. False

24.When taking field notes, it is a good idea to:

Question 24 options:

a.Throw them out after you have read them.

b.Correct and edit them as soon as possible

c.Wait for a long time before you correct and edit them

d. Use time sampling techniques

25.Dr. Brown's research involves videotapes of elementary school students' interactions on the playground. His method of data collection could best be described as

Question 25 options:

a.Experimental design

b. Laboratory observation.

c.Visual data.

d. Content analysis.

26.Interviews where the topics and issues to be covered are specified in advance, but the questions are asked in any order are called:

Question 26 options:

aStandardized open-ended interviews

b.The interview guide approach

c. The informal conversational interview

d. Closed quantitative interview

27.An educational psychologist is interested in the effects of mnemonics on learning words lists. He asks for volunteers from a Psychology-101 class to find 50 volunteers to participate in his study. What sampling method did this researcher use?

Question 27 options:

a. Simple random sampling

b. Quota sampling

c.Stratified sampling

d. Convenience sampling

28.When data are collected at one point in time this is called a:

Question 28 options:

a.Trend study

b. Panel study

c. Cross-sectional study

d. Longitudinal study

29.A spontaneous, loosely-structured interview is called a

Question 29 options:

a.Informal off-record discussion

b. Photo interview

c. Standardized open-ended interview

d. Informal conversational interview

30.Observation done in the real world is called:

Question 30 options:

a. Naturalistic observation

b. Laboratory observation

c. Focus groups

d. Informal conversational observation