Descriptions of variables for Experiment 3 of Miller, DeKay, Stone, and Sorenson, JDM 2013					
					
MOST OF THESE VARIABLES WERE NOT USED IN THE ANALYSES, BECAUSE INFORMATION DISTORTION WAS NOT ASSESSED (THERE WAS NO CONTROL CONDITION).					
There is no key to say which items appeared in which serial positions, because we never used that information. We paid attention only to which gamble was favored by the first item, as indicated at the end of the variable list.					
But we define all of the variables here anyway.					
					
Most variables are in alphabetical order rather than the order in which they were actually collected.					
AB, CD, EF, and GH are the four gamble pairs.					
"Skip" at the end of a variable name reflects a workaround for randomizing item order in MediaLab. A participant will have a value for the skip version of a variable or the normal (non-skip) version of that variable, but not both.					
"White" means a white ticket, which was the Probability of neither Winning nor Losing item. It was always the last item evaluated (Item 5).					
Missing data = blank cell.					
					
Variable	Longer variable name		Description and possible values
					
ID		Subject				Subject number. The specific numbers have no meaning.
Cond		Condition			Condition. 1 = No Progress Questions (so many other variable values are missing), 2 = Standard Experimental
ABALC		AB_AmtLossConf			Confidence in the current leader, after the Amount to Lose item for gamble pair AB. 50 to 100 in increments of 5.
ABALF		AB_AmtLossFavors		Evaluation of the Amount to Lose item for gamble pair AB. 1 to 9 integer scale. 1 = strongly favors A, 9 = strongly favors B.
ABALL		AB_AmtLossLeading		Tentative leader after the Amount to Lose item for gamble pair AB. 1 = A, 2 = B.
ABAWC		AB_AmtWinConf			Confidence in the current leader, after the Amount to Win item for gamble pair AB. 50 to 100 in increments of 5.
ABAWF		AB_AmtWinFavors			Evaluation of the Amount to Win item for gamble pair AB. 1 to 9 integer scale. 1 = strongly favors A, 9 = strongly favors B.
ABAWL		AB_AmtWinLeading		Tentative leader after the Amount to Win item for gamble pair AB. 1 = A, 2 = B.
ABPLC		AB_PLossConf			Confidence in the current leader, after the Probability of Losing item for gamble pair AB. 50 to 100 in increments of 5.
ABPLF		AB_PLossFavors			Evaluation of the Probability of Losing item for gamble pair AB. 1 to 9 integer scale. 1 = strongly favors A, 9 = strongly favors B.
ABPLL		AB_PLossLeading			Tentative leader after the Probability of Losing item for gamble pair AB. 1 = A, 2 = B.
ABPWC		AB_PWinConf			Confidence in the current leader, after the Probability of Winning item for gamble pair AB. 50 to 100 in increments of 5.
ABPWCS		AB_PWinConfSkip			Same as preceding variable. See note at top for skip variables.
ABPWF		AB_PWinFavors			Evaluation of the Probability of Winning item for gamble pair AB. 1 to 9 integer scale. 1 = strongly favors A, 9 = strongly favors B.
ABPWFS		AB_PWinFavorsSkip		Same as preceding variable. See note at top for skip variables.
ABPWL		AB_PWinLeading			Tentative leader after the Probability of Winning item for gamble pair AB. 1 = A, 2 = B.
ABPWLS		AB_PWinLeadingSkip		Same as preceding variable. See note at top for skip variables.
ABWC		AB_WhiteConf			Confidence in the FINAL CHOICE, after the Probability of neither Winning nor Losing item for gamble pair AB. 50 to 100 in increments of 5.
ABWF		AB_WhiteFavors			Evaluation of the Probability of neither Winning nor Losing item for gamble pair AB. 1 to 9 integer scale. 1 = strongly favors A, 9 = strongly favors B.
ABWL		AB_WhiteLeading			FINAL CHOICE after the Probability of neither Winning nor Losing item for gamble pair AB. 1 = A, 2 = B.
Age		Age				Age in years.
					
CDALC		CD_AmtLossConf			Confidence in the current leader, after the Amount to Lose item for gamble pair CD. 50 to 100 in increments of 5.
CDALCS		CD_AmtLossConfSkip		Same as preceding variable. See note at top for skip variables.
CDALF		CD_AmtLossFavors		Evaluation of the Amount to Lose item for gamble pair CD. 1 to 9 integer scale. 1 = strongly favors C, 9 = strongly favors D.
CDALFS		CD_AmtLossFavorsSkip		Same as preceding variable. See note at top for skip variables.
CDALL		CD_AmtLossLeading		Tentative leader after the Amount to Lose item for gamble pair CD. 1 = C, 2 = D.
CDALLS		CD_AmtLossLeadingSkip		Same as preceding variable. See note at top for skip variables.
CDAWC		CD_AmtWinConf			Confidence in the current leader, after the Amount to Win item for gamble pair CD. 50 to 100 in increments of 5.
CDAWF		CD_AmtWinFavors			Evaluation of the Amount to Win item for gamble pair CD. 1 to 9 integer scale. 1 = strongly favors C, 9 = strongly favors D.
CDAWL		CD_AmtWinLeading		Tentative leader after the Amount to Win item for gamble pair CD. 1 = C, 2 = D.
CDPLC		CD_PLossConf			Confidence in the current leader, after the Probability of Losing item for gamble pair CD. 50 to 100 in increments of 5.
CDPLF		CD_PLossFavors			Evaluation of the Probability of Losing item for gamble pair CD. 1 to 9 integer scale. 1 = strongly favors C, 9 = strongly favors D.
CDPLL		CD_PLossLeading			Tentative leader after the Probability of Losing item for gamble pair CD. 1 = C, 2 = D.
CDPWC		CD_PWinConf			Confidence in the current leader, after the Probability of Winning item for gamble pair CD. 50 to 100 in increments of 5.
CDPWF		CD_PWinFavors			Evaluation of the Probability of Winning item for gamble pair CD. 1 to 9 integer scale. 1 = strongly favors C, 9 = strongly favors D.
CDPWL		CD_PWinLeading			Tentative leader after the Probability of Winning item for gamble pair CD. 1 = C, 2 = D.
CDWC		CD_WhiteConf			Confidence in the FINAL CHOICE, after the Probability of neither Winning nor Losing item for gamble pair CD. 50 to 100 in increments of 5.
CDWF		CD_WhiteFavors			Evaluation of the Probability of neither Winning nor Losing item for gamble pair CD. 1 to 9 integer scale. 1 = strongly favors C, 9 = strongly favors D.
CDWL		CD_WhiteLeading			FINAL CHOICE after the Probability of neither Winning nor Losing item for gamble pair CD. 1 = C, 2 = D.
					
EFALC		EF_AmtLossConf			Confidence in the current leader, after the Amount to Lose item for gamble pair EF. 50 to 100 in increments of 5.
EFALF		EF_AmtLossFavors		Evaluation of the Amount to Lose item for gamble pair EF. 1 to 9 integer scale. 1 = strongly favors E, 9 = strongly favors F.
EFALL		EF_AmtLossLeading		Tentative leader after the Amount to Lose item for gamble pair EF. 1 = E, 2 = F.
EFAWC		EF_AmtWinConf			Confidence in the current leader, after the Amount to Win item for gamble pair EF. 50 to 100 in increments of 5.
EFAWCS		EF_AmtWinConfSkip		Same as preceding variable. See note at top for skip variables.
EFAWF		EF_AmtWinFavors			Evaluation of the Amount to Win item for gamble pair EF. 1 to 9 integer scale. 1 = strongly favors E, 9 = strongly favors F.
EFAWFS		EF_AmtWinFavorsSkip		Same as preceding variable. See note at top for skip variables.
EFAWL		EF_AmtWinLeading		Tentative leader after the Amount to Win item for gamble pair EF. 1 = E, 2 = F.
EFAWLS		EF_AmtWinLeadingSkip		Same as preceding variable. See note at top for skip variables.
EFPLC		EF_PLossConf			Confidence in the current leader, after the Probability of Losing item for gamble pair EF. 50 to 100 in increments of 5.
EFPLF		EF_PLossFavors			Evaluation of the Probability of Losing item for gamble pair EF. 1 to 9 integer scale. 1 = strongly favors E, 9 = strongly favors F.
EFPLL		EF_PLossLeading			Tentative leader after the Probability of Losing item for gamble pair EF. 1 = E, 2 = F.
EFPWC		EF_PWinConf			Confidence in the current leader, after the Probability of Winning item for gamble pair EF. 50 to 100 in increments of 5.
EFPWF		EF_PWinFavors			Evaluation of the Probability of Winning item for gamble pair EF. 1 to 9 integer scale. 1 = strongly favors E, 9 = strongly favors F.
EFPWL		EF_PWinLeading			Tentative leader after the Probability of Winning item for gamble pair EF. 1 = E, 2 = F.
EFWC		EF_WhiteConf			Confidence in the FINAL CHOICE after the Probability of neither Winning nor Losing item for gamble pair EF. 50 to 100 in increments of 5.
EFWF		EF_WhiteFavors			Evaluation of the Probability of neither Winning nor Losing item for gamble pair EF. 1 to 9 integer scale. 1 = strongly favors E, 9 = strongly favors F.
EFWL		EF_WhiteLeading			FINAL CHOICE after the Probability of neither Winning nor Losing item for gamble pair EF. 1 = E, 2 = F.
Eng		English				Is English your first language? Yes or No.
Eth1		Ethnicity_01			Dummy code for African American. 1 = Yes, 0 = No.
Eth2		Ethnicity_02			Dummy code for Asian American or Pacific Islander. 1 = Yes, 0 = No.
Eth3		Ethnicity_03			Dummy code for Native American or Alaskan. 1 = Yes, 0 = No.
Eth4		Ethnicity_04			Dummy code for Hispanic or Latino. 1 = Yes, 0 = No.
Eth5		Ethnicity_05			Dummy code for White (not of Hispanic Origin). 1 = Yes, 0 = No.
Eth6		Ethnicity_06			Code or text for "Other".  0 = No.  Other responses were typed in by the participant. <Cancel> means that a participant chose not to give additional information.
					
GHALC		GH_AmtLossConf			Confidence in the current leader, after the Amount to Lose item for gamble pair GH. 50 to 100 in increments of 5.
GHALF		GH_AmtLossFavors		Evaluation of the Amount to Lose item for gamble pair GH. 1 to 9 integer scale. 1 = strongly favors G, 9 = strongly favors H.
GHALL		GH_AmtLossLeading		Tentative leader after the Amount to Lose item for gamble pair GH. 1 = G, 2 = H.
GHAWC		GH_AmtWinConf			Confidence in the current leader, after the Amount to Win item for gamble pair GH. 50 to 100 in increments of 5.
GHAWCS		GH_AmtWinConfSkip		Same as preceding variable. See note at top for skip variables.
GHAWF		GH_AmtWinFavors			Evaluation of the Amount to Win item for gamble pair GH. 1 to 9 integer scale. 1 = strongly favors G, 9 = strongly favors H.
GHAWFS		GH_AmtWinFavorsSkip		Same as preceding variable. See note at top for skip variables.
GHAWL		GH_AmtWinLeading		Tentative leader after the Amount to Win item for gamble pair GH. 1 = G, 2 = H.
GHAWLS		GH_AmtWinLeadingSkip		Same as preceding variable. See note at top for skip variables.
GHPLC		GH_PLossConf			Confidence in the current leader, after the Probability of Losing item for gamble pair GH. 50 to 100 in increments of 5.
GHPLF		GH_PLossFavors			Evaluation of the Probability of Losing item for gamble pair GH. 1 to 9 integer scale. 1 = strongly favors G, 9 = strongly favors H.
GHPLL		GH_PLossLeading			Tentative leader after the Probability of Losing item for gamble pair GH. 1 = G, 2 = H.
GHPWC		GH_PWinConf			Confidence in the current leader, after the Probability of Winning item for gamble pair GH. 50 to 100 in increments of 5.
GHPWF		GH_PWinFavors			Evaluation of the Probability of Winning item for gamble pair GH. 1 to 9 integer scale. 1 = strongly favors G, 9 = strongly favors H.
GHPWL		GH_PWinLeading			Tentative leader after the Probability of Winning item for gamble pair GH. 1 = G, 2 = H.
GHWC		GH_WhiteConf			Confidence in the FINAL CHOICE after the Probability of neither Winning nor Losing item for gamble pair GH. 50 to 100 in increments of 5.
GHWF		GH_WhiteFavors			Evaluation of the Probability of neither Winning nor Losing item for gamble pair GH. 1 to 9 integer scale. 1 = strongly favors G, 9 = strongly favors H.
GHWL		GH_WhiteLeading			FINAL CHOICE after the Probability of neither Winning nor Losing item for gamble pair GH. 1 = G, 2 = H.
Likely		Likely_Distortion		How likely is it that you distorted information, even if you didn't notice yourself doing it? (not exact wording). 1 to 9 integer scale. 1 = Definitely did not do it, 9 = Definitely did it.
Notice		Notice_Distortion		Did you notice yourself distorting information? (not exact wording). 1 to 9 integer scale. 1 = Definitely did not notice doing it, 9 = Definitely did notice doing it.
Sex		Sex				Sex. Male or Female.
AB1		AB_Pos1				Which of two possible information items appeared as the first item for gamble pair AB? Determined by researchers from a separate MediaLab order file. Used to determine the gamble favored by the first item (see below). 1 or 4, but the meaning depends on the contents of those items in the MediaLab files.
CD1		CD_Pos1				Which of two possible information items appeared as the first item for gamble pair CD? As for AB above.
EF1		EF_Pos1				Which of two possible information items appeared as the first item for gamble pair EF? As for AB above.
GH1		GH_Pos1				Which of two possible information items appeared as the first item for gamble pair GH? As for AB above.
ABDir		AB_Direction1			ITEM 1 DIRECTION. In the choice between gambles A and B, which gamble was favored by the first item? Gamble1 (A) or Gamble2 (B). Determined by researchers from order information.
CDDir		CD_Direction1			ITEM 1 DIRECTION. In the choice between gambles C and D, which gamble was favored by the first item? Gamble1 (C) or Gamble2 (D). Determined by researchers from order information.
EFDir		EF_Direction1			ITEM 1 DIRECTION. In the choice between gambles E and F, which gamble was favored by the first item? Gamble1 (E) or Gamble2 (F). Determined by researchers from order information.
GHDir		GH_Direction1			ITEM 1 DIRECTION. In the choice between gambles G and H, which gamble was favored by the first item? Gamble1 (G) or Gamble2 (H). Determined by researchers from order information.