Ch3: Research Methods and Study Design

Question 1

sampling bias

Answer 1

not equally likely for all members of a population to be sampled

Question 2

selection bias

Answer 2

more general systemic flaws that include sampling bias

Question 3

meta-analysis

Answer 3

analysis of many studies to look for trends

Question 4

attrition

Answer 4

participants dropping out of study

Question 5

randomized block technique

Answer 5

evaluate where participants fall along the variables that should be equalized among experimental and control groups; then randomly assign individuals from the groups so that treatment and control groups are similar along the variables

Question 6

construct validity

Answer 6

instruments measure what they’re supposed to

Question 7

mixed methods research

Answer 7

mix of between-subjects and within-subjects comparisons

Question 8

type 2 error

Answer 8

false negative

Question 9

type 1 error

Answer 9

false positive

Question 10

internal validity

Answer 10

high if confounding variables have been minimized and if IV and DV make sense

Question 11

demand characteristics

Answer 11

tendency of participants to act how they are expected to behave