41. Academic researchers strive to minimize Type II errors, especially when testing theoretical models.

A) True

B) False

42. When it comes to error, if alpha increases, the chance of type I error increases.

A) True

B) False

43. When it comes to error, to decrease the chance of retaining a false null hypothesis, alpha needs to be reduced.

A) True

B) False

44. A researcher may “collapse” bordering ordinal data into a recoded variable containing fewer categories before running a chi-square analysis.

A) True

B) False

45. The groups compared by t-tests can only be from the same sample.

A) True

B) False

46. Z-tests are used with sample samples containing less than 30 subjects per cell.  T-tests are used for larger samples of 30 or more per cell.

A) True

B) False

47. The standard error identifies the precision of the variance for each of the two samples.

A) True

B) False

48. The Scheffe test should ONLY be performed after the basic one-way ANOVA has been found to be significant.

A) True

B) False

49. With single regression, the researcher is examining the relationship of one independent or predictor variable to the outcome variable.

A) True

B) False

50. R-square values range from -1 to 1.

A) True

B) False