Recognizing potential threats to external validity

Assignment Help Basic Statistics

Reference no: EM1318482

Q1)a) Categorize according to most descriptive or definitive category of research strategies (i.e., experiments, naturalistic observations, surveys, case-control studies, cohort studies, quasi-experiments, longitudinal vs. cross-sectional studies, matched design, retrospective vs. prospective studies, time-series, single-subject studies).

b) Recognize features of study that prompted your classification.

c) Recognize the IV, DV, and other variables, if suitable.

d) Recognize and describe potential threats (up to 3) to internal validity.

e) Recognize and explain potential threats (up to 3) to external validity.

f) Recognize strategies that were utilized to control for nuisance variables and minimize threats to valid inference making.

g) What additional strategies (up to 3) you would propose that may increase validity of the findings

The effect of smoking during mothers' pregnancy on children's delinquent behavior was investigated for a random sample of 300 kids who were junior high students in a local community. The kids were classified as ever having been arrested (yes/no). Their mothers were then interviewed to determine if they smoked while they were pregnant with these kids.

Reference no: EM1318482

Questions Cloud

Linear equations problem : Linear equations problem

The mean crash damages the similar for these three vehicles : In a bumper test, three types of autos were deliberately crashed into a barrier at 5mph, and the resulting damage (in dollars) was estimated. Five test vehicles of each type were crashed, with the results shown below. Are mean crash damages the sa..

How many ways are there to go from a to c : Evaluate the number of ways between two town from the word problem - How many ways are there to go from A to C?

Estimator or appreciative for the population proportion : The best estimator or appreciative for the population proportion is 0.45. How large must the sample be?

Recognizing potential threats to external validity : Recognize and explain potential threats (up to 3) to external validity.

State the inverse and the converse : State the inverse, the converse, and the contrapostive of the given statements.

Generating class diagram and pseudocode : Develop a class named CustomerRecord which holds a customer number, name, and address. Incorporate different methods in order to set the values for each data field and output values for each data field.

The order of operations to solve the expressions : The order of operations to solve the expressions

Assessment of sample size : The best estimator or appreciative of the population proportion is 0.45. How large must the sample be?

User Account

All Pages