Allen Nicklasson was found guilty by a jury in a Missouri state court of first-degree murder and was sentenced to death. He appeals from the district court’s 1 judgment denying his petition for a writ of habeas corpus. We affirm.
I.
For a complete recitation of the facts giving rise to this case,
see State v. Nicklasson,
*833 Richard Drummond saw the three stranded men and offered to take them to a telephone. Accepting the offer, they transferred the stolen property from their car to the trunk of Drummond’s vehicle, keeping a .22 caliber handgun and a shotgun with them when they entered Drum-mond’s vehicle. Nicklasson then sat behind Drummond, pressed the pistol against the back of Drummond’s head, and said, “[y]ou’re going to take us to where we want to go.” As they proceeded towards Kansas City, the three decided to kill Drummond and they had him drive to a secluded area off a county road. After ordering Drummond to stop and exit the car, Nicklasson walked him into the woods, ordered him to kneel, told him to say his prayers, and shot him in the head twice. Drummond’s body was found eight days later. Nicklasson and Skillicorn were later arrested while hitchhiking in California. 2
Following the imposition of his sentence, Nicklasson appealed his conviction to the Supreme Court of Missouri, arguing,
inter alia,
that the trial court had erred by (1) conducting a confusing and inadequate death qualification voir dire without defense participation, (2) prohibiting the defense from conducting follow-up voir dire after asking the jury about their ability to follow Missouri’s diminished capacity instruction, (3) barring any voir dire of jurors concerning their potential reaction to the introduction of evidence of Nicklas-son’s involvement in two other Good Samaritan murders, and (4) finding that the prosecution did not commit a racially-motivated
Batson
violation for striking two black jurors. A divided court held that the voir dire was constitutionally sufficient and found no error in the trial court’s determination that the jury strikes were for legitimate reasons.
Nicklasson,
II. The AEDPA Standard
Pursuant to the Antiterrorism and Effective Death Penalty Act (AEDPA), we may not grant a writ of habeas corpus with respect to any issue decided by the Missouri state courts unless the decision “was contrary to, or involved an unreasonable application of, clearly established Federal law, as determined by the Supreme Court” or “was based on an unreasonable determination of the facts in light of the evidence presented in the State court proceeding.” 28 U.S.C. § 2254(d). AEDPA limits the scope of federal review “in order to effect the intent of Congress to expedite habeas proceedings with appropriate deference to state court determinations.”
Whitmore v. Kemna,
A state court decision is “contrary to” clearly established federal law if it reaches a conclusion opposite to one reached by the Supreme Court on a question of law or decides the case differently
*834
than the Supreme Court has decided a case with a materially indistinguishable set of facts.
Id.
at 405,
III. Death Qualification Voir Dire
1. Trial Court’s Procedure
At the beginning of voir dire, the trial court made introductory remarks. It recounted, inter alia, a jury instruction concerning the elements of first-degree murder; it described the general decision-making process necessary to determine whether, if guilty, Nicklasson would receive a death or life imprisonment sentence; it discussed the role of mitigating and aggravating circumstances in the process; and it concluded by explaining the state’s burden of proof.
Following this introduction, the trial court asked potential jurors whether they could both follow the court’s instructions and (1) decide if the defendant was guilty or not guilty of murder in the first degree or of a lesser degree of homicide, (2) consider evidence of aggravating circumstances, (3) consider evidence of mitigating circumstances, (4) decide if the mitigating circumstances outweigh the aggravating circumstances, (5) unanimously decide with the other jurors that the aggravating circumstances outweigh the mitigating circumstances, (6) consider the imposition of the death penalty, and (7) consider the imposition of life without probation or parole.
With respect to death qualification, the court asked three additional questions of the venire panel: (1) whether they would automatically vote for the death penalty, (2) whether they would automatically vote for life without probation or parole, and (3) whether they would be able to follow the court’s instructions and consider both the imposition of the death penalty or the imposition of life without probation or parole.
Sixteen venirepersons responded that they would both automatically impose the death penalty and would automatically impose life imprisonment if they convicted the defendant of first-degree murder. Despite this contradiction, the court refused to ask additional death qualification questions or allow counsel to do so.
2. Analysis
A. The Sufficiency of the Death Penalty Voir Dire
Nicklasson’s case is not materially indistinguishable from any decided by the Supreme Court. Nicklasson therefore argues that the issues presented represent an unreasonable application of clearly established federal law set forth in
Morgan v. Illinois,
i. The Clearly Established Federal Law
The Supreme Court has indicated that the Constitution demands that the defendant be afforded an impartial jury.
Morgan,
The conduct of voir dire is generally left to the trial court’s sound discretion.
Morgan,
For this reason, “we have not hesitated, particularly in capital cases, to find that certain inquiries must be made to effectuate constitutional protections.”
3
Morgan,
ii. The Reasonableness of Missouri’s Application of Clearly Established Federal Law
The Missouri Supreme Court acknowledged that the Supreme Court mandated
*836
the
Witherspoon
and
Witt
death qualification voir dire questions and noted that such questions had been asked.
Nicklason,
[t]he test of the adequacy of voir dire is whether the process permits the parties to discover bias, prejudice or some other form of impartiality on the part of potential jurors. The trial court abuses its discretion and reversal is required only if the voir dire permitted does not allow the discovery of bias, prejudice or impartiality in potential jurors.
Id. at 609. We take no issue with this enunciation of the federal principle. In applying the principle, however, the Missouri Supreme Court effectively concluded that because Nicklasson’s voir dire included questions that were mandated by the Supreme Court and deemed relevant to the discovery of impermissible juror bias, the trial court’s questioning was constitutionally sufficient per se. Id. at 611.
By failing to recognize the need for additional death qualification voir dire questioning in the face of contradictory responses by sixteen potential jurors, the Missouri Supreme Court may have overlooked essential demands of fairness, thereby misapplying clearly established federal law. Were we reviewing this case on direct appeal, we might have come to a different conclusion.
4
As previously stated, however, “even if the federal habeas court concludes that the state court decision applied clearly established federal law incorrectly, relief is appropriate only if that application is also objectively unreasonable.”
Penny v. Johnson,
We are unable to say that the Missouri Supreme Court’s application of clearly established federal law, even if erroneous, is objectively unreasonable for the following reasons:
First, the Supreme Court observed in
Yarborough v. Alvarado,
Second, the Missouri Supreme Court repeatedly justified its position by citing deference to the trial court’s judgment because the trial court observed the jurors directly.
See Nicklasson,
[M]any veniremen simply cannot be asked enough questions to reach the point where their bias has been made “unmistakably clear”; these veniremen may not know how they will react when faced with imposing the death sentence, or may be unable to articulate, or may wish to hide their true feelings. Despite this lack of clarity in the planted record, however, there will be situations where the trial judge is left with the definite impression that a prospective juror would be unable to faithfully and impartially apply the law.... [T]his is why deference must be paid to the trial judge who sees and hears the juror.
Witt,
Third, the Missouri Supreme Court’s extension of deference conformed to a principled and reasonable analytical framework. Though its decision accords a broad degree of deference to the trial judge’s judgment, the court accorded that deference only after satisfying itself that the mandatory
Witherspoon
and
Witt
questions had been asked.
7
In fact, Nicklasson does not
*838
dispute that the judge asked questions specifically aimed at exposing death penalty bias. By recognizing the need that these questions be asked, the Missouri Supreme Court guaranteed that at least some information could be elicited from every potential juror — through verbal and nonverbal responses — from which the trial judge could form impressions.
8
Furthermore, as indicated above, outside of constitutionally mandated question topics, “the trial judge retains discretion as to the form and number of questions on the subject. ...”
Turner,
Fourth, the Missouri Supreme Court supported its position by noting that the Supreme Court has held that “removal for cause of
Witherspoon-ex.c\uáab\e&’
serves the State’s entirely proper interest in obtaining a single jury that could impartially decide all of the issues in ... [the] case.”
McCree,
Accordingly, even had the Missouri courts misapplied clearly established federal law pertaining to death penalty qualification voir dire, we are unable to grant habeas relief because Nicklasson has not shown that the misapplication was objectively unreasonable. The Missouri Supreme Court reasonably concluded that the questions asked were sufficiently specific to adequately probe the possibility of prejudice by the trial judge in whom much discretion is vested.
B. The Jury Instructions Given to Venire Panels
Nicklasson asserts that the trial court, in its instructions preceding voir dire questioning, erred by omitting the *839 “knowledge” element of first-degree murder, by offering a very general definition of “mitigating circumstances,” by later asking jurors if they could follow the law after telling the jurors that the law they must follow would be described in full in final jury instructions, and by erroneously describing evidence in mitigation of punishment as evidence that would make “this homicide ... not as serious as other homicides or that [would make] the character of the defendant ... not as bad as others who have committed murder in the First Degree.... ” We need not address these points, however, because the Missouri Supreme Court concluded that these claims were proeedurally barred. 11
“[A] procedural default does not bar consideration of a federal claim on either direct or habeas review unless the last state court rendering a judgment in the case clearly and expressly states that its judgment rests on a state procedural bar.”
Harris v. Reed,
C. Diminished Capacity Voir Dire
Nicklasson was allowed to recite Missouri’s diminished capacity instruction and ask the venire panel whether they could follow it, but he was not allowed to ask whether any jurors had preconceived notions about mental health or psychology that amounted to a disqualifying bias against the acceptance of related testimony. Nicklasson contends that because a diminished capacity defense necessarily requires reliance on such testimony, this restriction violated his respective rights to due process, a fair trial by an impartial jury, effective assistance of counsel, and freedom from cruel and unusual punishment.
Although clearly established federal law does in some instances require inquiries into certain biases such as race,
Ham,
D. Unadjudicated Crimes Voir Dire
Finally, Nicklasson contends that the Missouri courts violated clearly established federal law by barring defense counsel from questioning the jury as to whether information pertaining to additional homicides in Arizona would substantially impair their ability to follow the law in the penalty phase. Nicklasson reasons that in light of evidence supporting his involvement in additional murders, some jurors might be incapable of fully considering all of the mitigating sentencing factors and might be so blinded by their biases that they could not consider life imprisonment.
This claim is lacking in merit because it mischaracterizes the trial court record. Nowhere in the record does Nicklasson’s counsel request the questions Nicklasson now claims were disallowed; nor have we been able to identify an instance in which the trial judge had stated that he would not allow such questions even were they desired. 12 Instead, read in context, the cited portion of the transcript only describes defense counsel’s request of leave to ask potential jurors whether, given the indirect evidence of additional murders likely to be presented in the guilt phase of the trial, they would be able to put aside that evidence when considering Nicklas-son’s guilt for Drummond’s murder. 13 The trial judge disallowed questioning on that *841 guilt-phase topic. The Missouri Supreme Court found no abuse of discretion. As the requested question was not crafted or intended to detect impermissible juror sentencing bias, we cannot grant habeas relief on this basis.
IV. Alleged Batson Violations
Finally, Nicklasson argues that the prosecutor’s peremptory challenges of Katy Yokley and Karen McNeil, both African-Americans, were racially motivated and violated
Batson v. Kentucky,
Alleged
Batson
violations are considered in a three-step process. First, the opponent of a peremptory challenge must make a prima facie case of racial discrimination. Second, the proponent of the strike must tender a race-neutral explanation. Finally, the trial court must decide whether the opponent of the strike has proved purposeful racial discrimination.
Purkett v. Elem,
Nicklasson has failed to meet his burden, and the record supports the trial court’s finding of a race-neutral motivation. Nicklasson contends that the prosecutor’s proffered reasons for striking two black panelists “applies just as well to ... otherwise-similar nonblack[s] who [are] permitted to serve.”
Miller-El v. Dretke,
Yokley was purportedly excused because, in response to a death qualification voir dire question asking whether she would automatically impose a life sentence if the defendant was convicted of first-degree murder, she responded “probably.” A Caucasian venireperson, Janice Floyd, responded to the same question with “I believe so” and was not excused. Although Floyd provided a similar response to the death qualification voir dire question, the particular responses were central to the prosecution’s determination of whether, and to what extent, prospective jurors might be committed to imposing life imprisonment over the death penalty. We agree with the Missouri Supreme Court’s observation that “[t]he state is entitled to make judgments about the strength of a particular venireperson’s commitment to
*842
the life-without-parole option, vis-a-vis, that of another venireperson whose words do not convey the same conviction.”
Nicklasson,
It is reasonable to contend that a potential juror answering “probably” would be more committed to a position than one answering “I believe so.” “Probably” presents a predictive assessment cloaked in the objective garb of statistical language, whereas “I believe so” reflects a naked, subjective impression. Generally, objective or quantifiable evidence is more persuasive and comprehensible than subjective or qualitative evidence. The responses differ in their emphasis. This is a subtle distinction perhaps, but it has a direct bearing on a legitimate, reasonable, non-race-based trial strategy. Furthermore, as previously discussed, the trial court judge restricted death-qualification voir dire and asked those questions himself. In light of these restrictions, even minor differences between each potential juror’s response take on added significance; such differences are all the parties have to inform their peremptory challenge decisions.
Nicklasson’s reliance on
Miller-El
does not bolster his argument because the Supreme Court’s finding of a
Batson
violation did not hinge entirely on the closeness of the excluded black juror’s testimony to that of the white, but on the “totality of the relevant facts” pertaining to the prosecutor’s conduct during the defendant’s trial.
14
Miller-El,
The prosecution also struck Karen McNeil, a child protection investigator for the Illinois Division of Family Services, who is black. The prosecution claimed it struck her to avoid her relating her work-related experiences in the jury room. Nicklasson argues that the proffered reason was pretextual because venireperson Stark, a white clinical nurse specialist in child psychology, was not struck and might similarly share stories of child abuse. The trial court was persuaded that there “are quantum differences between the two jobs” and did not believe the strike was racially motivated. The Missouri Supreme Court elaborated on these differences, noting that family services investigators deal with “physical and familial aspects of a child’s life and attempts to stop or prevent abuse” while a clinical nurse specialist in child psychology “attempts rehabilitation of the mind and spirit after abuse has occurred.”
Nicklasson,
The judgment is affirmed.
Notes
. The Honorable Gary A. Fenner, United States District Judge for the Western District of Missouri.
. For an account of Skillicorn's prosecution for this crime,
see Skillicorn v. Luebbers,
. The party wishing to exclude a juror must “demonstrate, through questioning, that the potential juror lacks impartiality.”
Witt, 469
U.S. at 423,
. We have noted that a trial judge's discretion in conducting voir dire is “not without limits.”
Harold v. Corwin,
Id.
at 1150;
see also United States v. Spaar,
. Particularly relevant to our analysis is the Supreme Court's reminder that, when reviewing habeas petitions raising claims of
Wither-spoon-Witt
error, we "owe deference to the trial court, which is in a superior position to determine the demeanor and qualifications of a potential juror.”
Uttecht v.
Brown, - U.S. -,
. We note that despite the arguably erroneous statements made in introductory remarks preceding the death qualification questions, nothing about the death qualification questions themselves appears confusing or unusual. Accordingly, the trial judge’s observations may well have led him to interpret the conflicting responses to be, in context, indicative of moral uncertainty and not of confusion.
.Nicklasson contends that the questions suffered from infirmities because they consisted of "follow the law” questions and outmoded "automatic” penalty questions. Contrary to Nicklasson’s contention, the trial court did not rely exclusively on "follow the law” questions. The questions relating to the automatic sentencing of life and death did not mention adherence to the law at all. Additionally, although the Supreme Court has dispensed with references to "automatic” decision making for purposes of articulating the standard against which potential jurors are to be considered for cause-based exclusion,
Witt,
.For this reason, we find Nicklasson's citation of
Turner v. Murray,
. The Supreme Court was addressing whether exclusions for death qualification reasons generate imbalanced juries, not voir dire adequacy.
Lockhart v. McCree,
. Nicklasson seems to suggest that because determinations of “juror bias cannot be reduced to question-and-answer sessions which obtain results in the manner of a catechism,”
Witt,
. [These] claims are without merit. First, the [trial court’s comments] refute most of [Nicklasson's] assertions of error based on omission. Second, Nicklasson’s brief fails to favor the Court with legal argument or authority tying his generalized assertions of error to specific prejudice. Absent such argument, there is nothing for the Court to review.... Finally, assuming arguendo, that the trial court misspoke in some way during its introductory presentation to the venire, the jury received proper instructions during the guilt and penalty phases of the trial correcting the trial court’s earlier error before deliberations began.... The points are denied.
Nicklasson,
. In the pre-trial transcript, there is a mention by Nicklasson’s counsel of a previous off-the-record chambers discussion between himself and the judge concerning the judge’s not wanting further questioning relating to punishment. This represents the only reference to any prohibition against questions in the penalty stage. A trial court's decision will not be found to be constitutionally erroneous in the absence of a record that clearly reflects that decision.
. The defense began by saying that
[t]here will be evidence in this case that two or more people were killed in Arizona.... This evidence wouldn’t be admitted in its entirety until the second half of the trial if we get that far, but there will be indirect reference to these Arizona murders throughout the first part of the trial. I need to ask you a question about the effect of knowing that Mr. Nicklasson will be responsible for two other deaths in Arizona. ... How many of you are concerned about your ability to put aside evidence of two additional murders when in this first part of the trial you are being asked only to return Allen’s mental state at the time of the shooting?
Although not a model of clarity, the wording of the question itself and the discussion between defense counsel and the trial judge before and after the above-quoted language leaves us with no doubt that the desired question pertained only to the guilt phase of the trial.
. The Court noted that the prosecutor excluded 91% of eligible black venire panelists, mischaracterized a black venireperson's testimony in such a way as to make that testimony appear objectionable and different from that of a white venireperson when, in fact, the black venireperson's responses should have made the individual an ideal jurist for the prosecution, failed to ask follow-up voir dire questions to clarify claimed distinctions of import, and exhibited a pattern and practice of manipulating Texas voir dire panelist dismissal rules to effectuate the automatic dismissal of black venirepersons.
Miller-El,
. Unlike the situation in
Miller-El,
the parties here were not permitted to ask follow-up death qualification questions, thereby increasing the significance of even minor differences in responses. Additionally, the state’s proffered rationale as applied to the potential juror’s testimony in
Miller-El
was clearly a mischaracterization,
Miller-El,
